Ask HN: Have you experienced decline in problem-solving skills? How to improve?

128 points by Woberto ↗ HN
I think this might actually be a few questions:

  1. Has anybody noticed their own cognitive decline? I'm 30 but am interested in experiences at all ages
  2. Does anybody have a good way of testing their intellect or problem-solving periodically? This would at least help me keep track going forward
  3. Has anybody found ways to improve their problem-solving skills? Or critical thinking?
I feel like my ability to solve problems well - efficiently, cleverly, satisfactorily, completely - has reduced over time (past year, maybe multiple years? I'm not really sure.) For example, I'll find that a programming solution didn't account for things I should've considered or introduced a new bug; or a co-worker will suggest a different solution and it seems obviously better. I don't think this has always been the case; I used to be pretty school smart in subjects like math and comp sci. My theories:

  - Maybe my intellect has diminished from using alcohol and weed at an early age?
  - Maybe that I've been feeling a bit burnt out
  - Maybe I've gotten lazy and rely too much on, e.g., stackoverflow
  - Maybe medicine I take for mental health?
  - Insufficient sleep? I've been getting 6-7 recently but should probably be getting 7-9
  - Maybe I've actually always been dumb and am only now realizing it!
Any thoughts would be appreciated. If it's something I can change, that would be a huge relief.

154 comments

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Just wait until you have kids. Your mental capacity will nosedive and you have no time to worry about it. Just hope that no one notices!
+1. For people without kids yet, pay close attention to this comment. If you have big dreams, better get on them now.

For OP's #3 question: Reducing inputs has helped me tremendously. You don't need to pay attention to everything. You don't need to stay abreast of everything.

The capacity nosedive from having kids goes away as they grow up and become independent. And the coping skills you learned to deal with having less energy become almost super powers once your energy comes back. Likewise, the skill of having dealt with children through all ages and stages makes it easier to relate to difficult co-workers. I'm not saying work is easier once your kids are older... but your capacity to manage the work and deal with challenges definitely bounces back higher than it started before having kids.

So I'd say follow your dreams early, or follow them late. Just don't try them at the same time as raising kids.

Thanks for posting this. My kids are getting to their teens and the fog is lifting somewhat.

I couldn't think of an elegant way to mention that and suggest that OP should still attempt to maintain their mental faculties (nutrition, sleep, reading, learning within capabilities), so they aren't caught with their proverbial pants down when the kids get older.

Glad it's not just me. Kids are my kryptonite. I was superman, now I'm normal man. Thankfully there's a lot more to building systems than the pure code skills and those skills are greatly boosted by having kids (multi-tasking, communicating!) but the change is jarring.

I now understand why my father and his father's generation forced the women to stay at home with the kids.

I am this stage currently.

Amazon recruiter has been asking me to take a technical assessment for weeks. I have no will power at all. Frankly, I am at a point where I won't study leetcode at all. I'm willing to make a move but will not grind.

Working on CRUD doesn't help the situation but at least I can do it with my tired and fried brain.

> I'm willing to make a move

To Amazon? To be fair, I know people who thrived in the Amazon culture, but a lot don't.

> CRUD

It's all CRUD and ETL one way or another.

If it helps, I did like 2 easy leetcode exercises and still got into Amazon lol. I've done nothing but business applications for my entire career, so I don't know jack about data-structures nor algorithms. Most of the interview is about your work history and "leadership" questions.

EDIT: btw Amazon is NOT a good place for busy parents IMO. The on-call rotation can be brutal. YMMV based on where you land in the company, but if they will try to sell you hard on the positive aspects of the company and downplay the negatives, so beware.

Thanks for the heads up.
I have found the opposite actually. I have three young children and I feel like they have forced me into much better time management habits, which has helped my productivity a lot. The caveat to that is that I can't put in as much time into work anymore, so while I'm more productive, I don't have as much time to be productive. It ends up being a wash.
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Get sleep. Eat proper meals. Don't skip meals. Talk out loud when analyzing a problem, if necessary. Try to laugh to relieve stress when faced with a knotty problem that you're making no progress on.
Talking out loud is really helpful. I often put in headphones and walk around my neighborhood and talk to myself. Looks like I’m on the phone, but I work out a lot of problems this way
Early 30s here: focus has been the most important thing for me, and the resource that's been in the greatest decline.

I used to be able to multi-task to the point that I never really had to explicitly consider what I was doing: I could address everything, everywhere, well enough to not worry about it. I didn't have to reject incoming tasks or make a list and plan for my day, because I could meander through and come out the other side successful.

Now I am probably just as capable as I was at an earlier age, and in many areas more capable, but I need to manage my focus explicitly as a resource. I can only do so much in a day, now. This means I need to explicitly reject work which I am not able to do, make lists, and maintain a personal backlog and "actively working" section.

Make sure if you do this that you consider your personal life and obligations at least as important, if not more important than your work ones, or you can also easily tunnel vision into work tasks.

Also, with respect to your comments about programming solutions and co-workers - consider that you may have just moved up in the world, and are now solving harder problems with more experienced people.

I find overall cognition in myself to be fairly elastic. There were periods when I was raising my kids where the sleep deprivation took a huge toll on everything I did. However I did eventually recover and learned quite a bit about logic, proof, and type theory in the following years. I think I'm a lot stronger as a developer now than I used to be.

I went through a period of burnout a couple years ago. That had a strong effect on my mood, energy levels, and interfered with my short-term memory a lot. However I've recovered from that too.

Best thing you can do is stay rested, eat well, and get a therapist. Stress can play a huge role in our lives and managing our emotional states is as important as our physical ones to overall mental health. It can be good to have a coach in your corner to help you recognize patterns and behaviours. They can often offer helpful guidance on how to manage them to achieve the outcomes you desire.

I think as people age, its easier to get distracted. However, age does make people better at conceptualizing a bigger picture rather than focusing on individual pieces.
Nope. But if I make the right decision, people manage to misunderstand long enough that's no longer an option. It's a vicious circle.

All I can do is make people own that absent the ability to break the law with impunity, I may not make good decisions if folks exhaust me when I tried to make great ones.

Exercise in the morning can help - you may feel tired immediately after but for many it provides an energy boost for the day
In my own experience there was a precipitous decline in my job performance related critical thinking around 32-34 ( I'm 36 now ) that I chalk up to a variety of factors:

    - Stress 
    - Family obligations
    - Not enjoying the work I do anymore
    - Solving the same problems over and over because I can't fix the org that produces them.
    - Solving the above problems in a new technology.
    - Crappy co-workers that I don't want to interact with
    - Giving my best to people and projects that never give back.
    - Making creative solutions that the client doesn't use because the clients are broken beyond my paygrade to solve them.
I burned out really badly around 5-6 years ago and it took a long time to recover. I feel better now mainly because I've stopped working on software projects in my spare time and now do manual labor on large project on some land I bought in my spare time. It's insanely satisfying to see the fruits of my labor add up over time without deprecation or having to do work every time an upstream project changes things or feeling "less than" about my work. My work speaks for itself on the land and it pleases me, no one else's approval required. ( Something I never felt about the software projects I worked on. ) It's also fun to talk to non-tech folks about the work because they usually have good suggestions about how to do something better that, for the most part, they give constructively.

My only advice/thoughts would be maybe take a step back. Do you TRULY enjoy what you are doing? In my own experience, it's hard to motivate yourself to work on things that you don't truly care about as you get older. Solving other people's problems was fun until I realized the entire world ( including the billionaires that have "made it" ) are mostly just people getting along and aren't necessarily more capable or knowledgeable than me. Some people get lucky with timing, tenaciousness, and talent... it's probably too late for me, but that's okay.

Too late for what? The fact you own land should be cherished in itself. A lot of people suffer or go through life with much less than you probably have now. You worked hard, don't diminish your accomplishments.
Too late to "make it" via SV/tech world.. I definitely am incredibly fortunate and much more grateful about what I do have as I have gotten older. It's one of the reasons that I don't give so much to my job anymore.
'Make it' is subjective though. I work in IT, own a modest home and I would say I've made it although many commenters on this forum would say I am broke by their standards. Everything is relative - I hope you are able to find joy, peace and rest in your well-deserved accomplishments
> Solving the same problems over and over

Years ago I was a manager on a (software) test team, and I can definitely relate to this. We were locked into a cycle of ...

"The test pass ran and one of the test cases failed."

"Which test case and what does it mean? Who owns it?"

"Well, Joe wrote it but he went to Amazon two years ago and it's assigned to Bob."

"What does Bob say?"

"He doesn't fucking know, there's no metadata and the test case is called FunctionTest27."

"Maybe we should just delete the test then?"

"But what if it's 'valuable'?"

> "But what if it's 'valuable'?"

That hit me hard... yes, that takes energy from a person.

I find it varies a lot from day to day and time to time. It probably has to do with a combination of sleep, food, type of contexts and tasks I'm working in, distractions (active and passive/background), and probably other factors.

I've considered and tried to optimize it so that I'm working clos to the peak, but then decided that'd be too much effort and too restrictive, and instead try different things (music, isolation, gaining context, writing/thinking, approaching the work in different ways etc) when I feel I'm not working well

I am in my mid 40's and recently really noticed this. It felt like some of the teeth in the gears of my mind were worn down and things were slipping.

After complaining about it to some peers I was informed this could be due to low testosterone so I went and had that tested. Apparently my testosterone level was that of a 70 year old man so I started testosterone replacement therapy. I can say that it is a complete game changer! Yes I feel like a shill saying/typing it but it is true. My energy has gone way up and my mind is feels much sharper than it previously was.

To be honest at 30 this may not be an issue for you but I put this out there for others who maybe older I definitely recommend getting tested at a clinic that specializes in testosterone replacement therapy.

Thanks for posting this - I'm having this problem, but I've put it down to having small children, the chronic lack of sleep and the rarely having more than 1 hour time in a week where it's quiet and I can focus. That combined with being totally out of shape (covid + terrible two's).
> I'm having this problem, but I've put it down to having small children, the chronic lack of sleep and the rarely having more than 1 hour time in a week where it's quiet and I can focus.

Evidence of testosterone supplementation improving cognitive performance is weak despite many studies.

Evidence of sleep associated with cognitive performance is extensive and well documented.

The (not that helpful in the moment) good news is that kids get older and will eventually sleep more and more independently.

Indeed, there is a light at the end of the tunnel. With young kids, problems that need an immediate solution are frequent. (When the toilet overflows, you can't just leave it for later.) Now that my kids are a bit older, the problems are more complex, but we generally have more time to work on them. (Kid needs to be convinced to clean their room so they can find their wallet.)
I would recommend trying to work on diet/exercise before I would go down the TRT path. If you get those squared away and stress at home is reduced and you still are having the same issues then it maybe something to look into.
That's the plan - I was lifting before we had our youngest (2.5) and fairly fit (dad bod but I was working on it). Last 2.5 years ruined that. Will be happy when I can get back to regular training but for that to happen we need to be over this current period.
I am in my mid 40's and recently really noticed this

Honest question - how much exercise were you getting before you went to testosterone therapy?

The reason I ask is because of the studies that have shown that the decline in testosterone associated with aging is because of poor health, not age. Example:

https://www.sciencedaily.com/releases/2011/06/110607121129.h...

I am in the next decade after you and have noticed no decline. I do heavy weight lifting three days per week and burn about 1,000 calories per day with cardio. That seems to be a sweet spot - too little exercise or too much and your testosterone will take a hit. Rubbish diet will not help though either.

How do you measure testosterone? You make it sound like you just step on a testosterone scale each morning and take note of the value. If that’s the case, I need to get me one.
You can get home kits. You just give them a couple drops of blood and send it back.
It's even easier than that - there are even saliva tests:

https://www.everlywell.com/products/testosterone-test/

(No affiliation, not an affiliate link)

Careful with the Saliva tests. They are much less accurate. I had one done and it said I was way above the normal range. I went to the doctor and had a blood test and it was normal.
I went to a clinic that specializes in it. They take several blood samples and send them off to the lab, the test for overall testosterone levels, free testosterone, estrogen and one other I am not 100% certain of.

There is a range that is considered normal testosterone except that range is HUGE, my results were at the very low end of that spectrum.

Part of the plan I am on I get tested every month for the first 3 months then every 3 months there after.

As someone that only recently started exercising after a lifetime of being sedentary - everything they say about exercise is true. If it was a pill it would be the greatest medical discovery of all time and worth trillions of dollars.
I’m in the same situation! I’ve always been sedentary but recently started relatively intense training and the improvement in literally everything is remarkable.
No longer moderately depressed! I think I’m well north of neutral almost every day now. I feel better, look better, my knees don’t hurt as much.
I have been very active my entire adult life.

Part of what really tipped me off was my energy before and after the gym was much lower than it used to be. Also I would be tired starting around 2 PM in the afternoon, this isn't sleep related as I sleep like a baby, which I am grateful for. Also I never drank coffee or took lots of caffeine so I was perplexed as to why I would just crater in the afternoons.

After starting the treatment I am no longer tired in the afternoons, my mind feels sharper and I can tell I am recalling processing info better. The energy at the gym has improved as well.

Are you under extreme stress? This is what induced mine, I was working at a very stressful Wall Street quant trading job at a major firm at the time.
Had a sleep study? Solved my testosterone problem.
You should investigate clomiphene citrate instead of testosterone directly. Clomid mutes the brains response to estrogen, the final feedback product of the testosterone cycle. This causes the body to produce more testosterone in the testes rather than front loading the cycle. The primary impact is your testes continue to function, while testosterone over time will chemically castrate you.

This has been in use for 60 or so years but isn’t an FDA approved use of clomid. The primary reason is clomid is cheap to produce and not patented. It’s extremely safe and if you shop around you’ll find a urologist that’s aware of it and will prescribe it - but most urologists get marketing benefits from the rather expensive testosterone replacement products so not all are either aware or are willing to forego the lucrative marketing funds.

I switch to this about 10 years ago after starting testosterone for a few months. I wanted to have kids and I was very worried. I researched the biological processes for testosterone and stumbled on clomid as a relatively well known but unmarketed low T therapy. I went to a top urologist at NYU and he ranted about urologists that don’t use clomid. He gave me a prescription and it worked like magic. Two years later I had my first kid. I still take it at a low dose because I feel great. My testosterone levels are high normal range.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5182219/

https://en.m.wikipedia.org/wiki/Clomifene (other uses section)

I'm pretty sure the FDA has never denied a drug use application because it's not patentable and that's just a conspiracy theory used by people pushing bogus treatments. If there's peer-reviewed research that it works, it would be prescribed without doctor shopping.
That’s not my point. It’s not patentable so it’s not commercially viable to go through the clinical trials process for something that’s basically free to produce.

There is plenty of peer reviewed research, but not all doctors are aware of all research and testosterone replacement is widely marketed with very lucrative contracts to urologists.

Feel free to read the research yourself

https://www.ncbi.nlm.nih.gov/pmc/?term=Clomiphene+testostero...

That's not entirely true.

The FDA has a "new clinical investigation" program that is supposed to reward people running clinical trials. If you collect data showing efficacy of a new use of a previously-approved drug, you can "earn" the exclusive right to market it for that condition. Of course, someone has to actually do it...and the numbers don't always pan out.

I think a part of this is also the FDA has been really reluctant to touch testosterone producing substances - there was a company trying to get approval for a patented isomer of clomiphene and they took it through phase 3 and the fda indicated they wouldn’t approve it because they viewed the primary benefit of not being castrating as not compelling enough for a new treatment for low T. Their reasoning to my memory was mostly elderly men suffer from low T and they wanted to discourage what they viewed as a growing trend of lifestyle testosterone treatment. As a clomid user I bought the companies stock and followed it closely through the process and was terribly discouraged about the FDAs processes as a result (and my wallet too!). I’ve been trying to dig that stuff up but it appears the company died as a result and googles not finding the FDA communications. This was like almost 10 years ago.
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>I'm pretty sure the FDA has never denied a drug use application because it's not patentable and that's just a conspiracy theory used by people pushing bogus treatments.

No, that's not it, that's a very uncharitable interpretation and is unnecessarily dismissive . The real issue is that no one wants to pay for studies to turn off-label uses to on-label uses if there isn't money in it because the process is expensive, and so won't be done when there are better returns on investment.

Apologies for the wrong interpretation, but I'm still skeptical. The generic drug market is huge, this drug in particular is already approved and in wide use for fertility treatment meaning that it's already passed safety trials. Getting approval for a secondary usage would be less costly than starting from scratch and there would likely be a huge market for this. There is absolutely money to be made from anyone who wants to get in this market.
Unfortunately I’ve been unable to dig up the details and citations but there have been companies that have tried. It isn’t as straight forward as it seems. See my other comment in this thread about one that tried. I even owned their stock for a while hoping it’ll work out but in the end the FDA didn’t want to encourage safer TRT’s. I was floored when I read their justification and my stock went to zero, and it looks like the company is dead now. I wish I could dig it up, the FDA memo on their decision changed my view of medicine forever.
Suggesting long term SERM use in replacement of a bio identical testosterone does not seem like the brightest idea. There have been reports of blurred vision, floaters in the eyes, and more (look on pubmed under just about any SERM, but specifically clomid).

In my opinion it would be much safer to suggest recombinant FSH and LH. The brain testes axis seems to have the least amount of atrophy over time from anecdotal experiences of those online and in a few case reports. I do not think HCG should be used long term due to the non-bio identical nature, but it is a good short term LH mimic if my memory serves me correctly. Would be a great addition to a TRT protocol.

Research indicates blurred vision happens but is rare.

I thought LH/FSH is usually increased using HCG injections? Is there an oral route for LH//FSH? One of the benefits of clomiphene is it’s orally administered so no complex refrigeration / injectable requirements.

https://pubmed.ncbi.nlm.nih.gov/31216250/

I'm intrigued and am going to "do my own research". Thanks for the lead!
>The primary impact is your testes continue to function, while testosterone over time will chemically castrate you.

Anastrozole or HCG (I forget which) should have prevented that

My understanding is anastrozole works in a similar way to clomiphene, but has heart and bone concerns.

HCG is an injectable. Others may think differently but I’d rather take a once a day tablet than introduce an injectable to my life.

What is your current dose and frequency? Researching this at the moment while I wait fory T test results
> I can say that it is a complete game changer!

Could this be a placebo effect. I have low testosterone too. I've been doing "natural" ways by changing diet, cardio/weights, sleeping in a lot, trying to have sex regularly. But my numbers just don't seem to budge.

I think my only options now are TRT or just accept and make peace with it. If I do TRT, my impression is that you have stay on it for life. I am not sure i am ready for that kind of commitment.

See my reply above about clomiphene citrate. I had that same worry. While I still take it I could stop at any time and my body will produce testosterone naturally. TRT is castrating and there are medical alternatives that work.
I 100% feel you as the fear of having to do it forever was a big hold up for me as well. The reality is you can stop whenever you want you will just go back to having less energy etc.

Having done it I can see myself doing it until my late 50's at which point I should have the majority of my adventuring done as well as be out of the workforce so I will probably not be too concerned about lack of energy.

>The reality is you can stop whenever you want you will just go back to having less energy etc.

I am not sure if you go back to your previous baseline. I know athletes who do this have forever left with way lower testosterone than their previous baseline.

Once you experience a normal level of testosterone, you would not consider for a moment returning to "baseline". The commitment would be like your commitment to having a roof.
Uh, did the doc mention why the testosterone levels could be low to begin with? Diet / "life style choices" / stress / lack of exercise? At mid 40s simply 'age' isn't all that convincing.

What about side / ill effects?

Testosterone has been declining in the population for decades. The reference levels for "normal" 20 year old now include what were, 60 years ago, levels considered too low for a ~60 year old man. It's not an exaggeration to say that at least a third of men have never experienced a normal hormonal level of testosterone. Testosterone affects nearly everything about the male physical and mental state; not only the stereotypical aggression and lust, but also mental clarity, happiness, even health.
That is fascinating. Where can I read more about this subject?
You can just search for 'american male testosterone decline' to find many articles and studies. For the benefits of testosterone, I'm sure similar articles exist, but I'm speaking from the experience of talking to men who have started TRT.
But there are also many drawbacks to TRT. Some have speculated that the reason for womens' longevity relative to men is related to lower testosterone levels.
Stop using find in pdfs but instead read the thing.

read more books instead of online.

become proficient in view things instead a generalist in many rhings

Also in my 30s, one thing I found that improved my focus/cognition more than I ever expected was strength training and exercise in general. I had never exercised regularly until a couple of years ago, and after two months of 2-3 times a week strength training with some cardio mixed in my brain felt like it was 20 again.

YMMV, but that and adequate sleep was what really did it for me. Also go easy on the alcohol, see if you can restrict it to once a week. Chronically imbibing even low amounts of depressants tends to, well, depress cognitive function. The enlightenment was driven by coffee and tea, not beer.

> 3. Has anybody found ways to improve their problem-solving skills? Or critical thinking?

For me nothing ever beats running and the associated runners's high. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4915811/

Probably you could analyze how so-called β-hydroxybutyrate is synthesized and eat precusors too before going.

I agree: For me, the primary focus of exercise is high intesity to trigger huge dopamine releases ("runner's high"). It is my legal drug of choice. Plus, I try to visualise past high quality athletic performances to get my mind in the right place. Running / cycling / swimming (tri-) helps me the most, but I heard that people can also trigger huge dopamine releases through strength training -- hitting new max weights is very inspiring to them.
I never get a high from running or any other kind of exercise.
For me getting "high" from running is pretty hard. Bicycle rides in the other hand, pretty easy... just need to pick some speed :)

I bet some people get "high" on messing others lives :D you just need to seek yours :)

Surprised no one mentioned it. Sugar. If I eat a lot of candy or sweets for example on a weekend, my logical faculties always seem low. Pattern matching and quick thinking is replaced with scatter brain. Booze is a lot worse of course. Weed seems to do other things, can help with creative out the box thinking but sometimes that’s not what you need.
I get that with caffeine and milk. Recently with milk only. Trying around with alkohol-free beer now. But also feel slightly tired after drinking it
I'm in my 40s and honestly feel like my problem solving ability is increasing every year and that I'm more able to better understand and solve problems than at any other point in my life. I also drink and smoke plenty of weed, and hardly sleep so I doubt that's the source ;) a couple of points:

- I realize now that when I was younger I felt correct more often than I was.

I think one major reason for feelings of cognitive decline is simply that I was very ignorant of how wrong I was when I was younger. On a given day I felt much smarter, but in retrospect was very naive and had a lot of learning to do.

- Never stop learning and studying hard things. This means perpetually feeling stupid

I'm a perpetual learner, right now I have 4 text books that I'm working through in front of me. The challenge I've realized when talking to people is that in order to learn you have to allow yourself to feel stupid. This a big issue for many people. It's not a pleasant feeling and for most people they never want to feel that way after they get out of school. Ironically this is probably even more true for people with graduate degrees. I was shocked how many PhDs I've met that never want to pick up a text book, or paper outside their area of expertise again. It makes sense, you worked so hard for that degree and to feel like an expert why would you ever go back to feeling like an idiot? But if you want to keep learning that's the path you have to take.

- You're younger at 40 than at 30.

At 30 you really start to feel the difference between youth and age, but this intensifies the feeling of being "old". My newly 30 year old colleagues complain about far more aches and pains and other complications of aging than I do. They feel far more limited by age than I do. But I remember feeling the same at their age. After a decade of getting the hang of managing decline you realize you can do a lot more than you thought, you just have to be a bit more thoughtful about how you do it. As an example, I know lots of life long runners that get injured around 30 and give up. I started running in my late thirties and finished my first marathon within a few years. Young bodies don't have to worry about form or correct practice, in your 20s you can just do better by pushing harder. You cannot learn to run in your late 30s without first mastering and understanding your body. As you age, brute force becomes less of an option which means to do things you become more skilled in doing them, you have to learn it correct and as you do you realize you are better at many things.

- Decline teaches you that you lose everything eventually, learn to live accepting this not resisting it.

When I was younger I placed a lot of my self worth on how smart I felt I was. I really wanted to feel special and be appreciated for that. After many successes in life, achieving the things I only dreamed about in my 20s, I realized that that feeling is never satisfied. I realized that wanting to feel smart was really about wanting to be perceived as smart. What makes decline scary is a feeling that you will lose your value. You can pretend you wont, but a better solution is to accept that you will, and maybe that you never really had that value you thought you did. Look at this live as what you have and ask yourself what do you want from it? I study every day because it brings me pleasure in itself, I no longer care if other people even know about the fruits of that labor. If one day I lose most cognitive ability, I hope I can enjoy just sitting their and feeling the breeze.

>> I also drink and smoke plenty of weed,

How is drinking weed an option, though?

Clearly I'm implying drinking alcohol and smoking weed.

That said, I do think there is much work to be done in the cannabis cocktail area. Flavor wise there is a lot of unexplored possibility, the major challenge in this space is ensuring dosage is correct since the effects of each substance are felt on such different time lines. You don't want to start feeling a bit too drunk and realize that the weed hasn't even hit you yet.

Cannabis oil fat washing is probably the best approach to this (but fairly expensive to experiment with). While going the tincture direction seems obvious, I think that's going to have too little flavor and too much THC.

If anyone has an links to people working in this space I'd be happy to have them.

>> Clearly I'm implying drinking alcohol and smoking weed.

all right, it seems though that your writing abilities were compromised by consuming alcohol and drugs. take care!

All he did was miss a comma (an optional one, no less!). You must be a high ranking member of the Grammar Police! Or maybe the Benevolent Pedant's Association?
Wisdom beats intelligence.

In the small, I'm not as fast as I was. I code slower. I think slower. I probably type slower.

In the large, that doesn't matter. I go down fewer dead ends. I can just see things that I used to have to think through. Overall, I'm faster than I used to be, even though I don't feel as sharp as I did.

Yes. Got to the point that I was taking dementia medication. A loop was a major challenge for me.

After a few years it came down to two issues. I had a clotting disorder. (Factor 5 Leiden) I was suffering minor strokes (TIA) without knowing it. I had high cranial pressure (IIH), which leads to brain fog.

When I started blood thinners, and got IIH under control It was like a flip was switched. Problems that had been taking me weeks of work were done in minutes.

This is for everyone else since hindsight is 20/20, but heavy and consistent cardio exercise can help prevent issues like this. That and keeping your weight on the lighter side.
For the IIH. You are sometimes correct. Weight is usually, but not always the issue. Its kind of a checkmark in things you should be doing.

An interesting pattern is IIH can prevent exercise. I spent years getting a major headache and brain fog for a week after each workout session.

For Factor 5 Leiden. Sometimes genetics just says you're screwed. Nothing other then blood thinners was going to matter for this one.

Small anecdote: Back in 2017 when Zelda: Breath of the Wild came out, I was able to easily solve the labyrinths. I had all the turns I took in mind and was easily able to backtrack. Back then it was a walk in the park. When I tried to do the same labyrinths a few weeks ago, I was heavily struggling. I wasn’t able to keep all the paths in mind and lost easily the orientation which surprised me quite a lot. Of course can also be attributed to a varying mental state but nevertheless it scared me a bit about the apparent loss of certain cognitive abilities.
I had a nasty car accident a few years ago and felt like my memory wasn't as good afterwards (despite tests from medical professionals that disagreed with me on that).

I addressed this by developing new, very detailed note-taking habits. Absolutely anything I work on now happens in a private or public GitHub issues thread. I take notes on my progress constantly - decisions I've made, dead ends I've explored, things I need to do next.

Whether or not I actually have any memory problems this approach has been a huge boost to my productivity. I wish I'd worked like this for my whole career.

"- Maybe I've actually always been dumb and am only now realizing it!"

== wisdom

A little aside: Accept and enjoy the slow path.

You can't run fast as before, but exist a lot of value in pay attention to the road, something that being younger rarely happened.

The past experience also helps to be faster: You know what to avoid or have develop a proven way to solve things.

Also, learn to rest well. Is more than just sleep, maybe the rest of the day is attempting to be too hectic and now is not the time for that.

I'm fairly useless at IC work right now with two kids under 5. I was getting smarter again as the first got more independent and I got more sleep, but now we have another newborn. Just hoping I can coast on previous accomplishments until either I move full-time to management or the kids get older and I'm able to think straight again.
I'm in my 40s and feel sharp, with some evidence to back that up (such as career success and learning new things well). I believe these things help me stay sharp: I prioritize sleep. I try to get exercise (most often running) every day. I try to write every day; I write about ideas (typically new ideas in math or philosophy). I often read something I'm learning, such as a math book, something for work, or learning a new language. I meet weekly (online) with someone who's teaching me a new language - in this case French, but I think what's important is to keep learning. My work presents new technical challenges regularly, and I made a life decision to change my work whenever I feel burnout approaching.

To address other comments: I have two young kids, and I've been a single dad since my youngest was 3. Some commenters speak as if having kids kills your work or thinking life. This is partially true for the first year because of sleep depravation. And it's a new level of difficulty in terms of organizational demand on your life. It's harder. But it doesn't kill your mental abilities, and in fact I'm a happier person with my kids around, which gives me more motivation and life satisfaction. I've been able to solo run a successful bootstrapped startup while being a single dad. It's difficult and requires focus and deliberate life organization, but it's possible, and in fact quite rewarding and nice.

(Also, maybe the above makes it sound like I've had zero problems, but that's not true. It's been a long journey to figure out my priorities, with many mistakes and setbacks to being where I want to be. I have had times when I felt mentally less sharp, and worked to recover from those.)

Wow how do you have time for sleep, exercise, bootstrap start up, learn another language, etc. as a single dad? Any suggestions on life organization? Do you have a team of nannies/house help?
I have lots of help. I write during work hours (so kids are at school). At work I delegate as much as possible to a team of great people; hiring a good team has been critical. I sometimes hire a sitter to support some exercise time, and other times I bring my kids with me to a running track. I hire housecleaners to clean regularly to help me keep my home nice and organized. I don't currently have a personal assistant, but in the past I did and that was helpful for getting "life things" done. My kids and I have gotten used to a culture where we alternate between independent time (so I can, say, read a textbook for an hour while they play) and together time. I've found that my kids enjoy independent time when they know they will regularly have focused attention from me, so I try to give them that (reliable focused attention, ideally 1:1). I do have less time to work than I did before kids, so I spend a portion of my energy planning ahead or delegating.
Reading your comments, I think you have super human level of energy. Not to take anything away from your experience, but that isn't much help to the OP who is likely much lower energy. I observe the same in myself. Each year that I age up, the gap in energy between myself and peers grows larger. They keep getting fatter, slower, lazier, less innovative/intelligent. Me: Yes, a bit, but far slower than others around me. The last five years has been striking -- the distance. More and more people ask me: "How do you do it?" Or "When will you slow down?". For years, I thought something was wrong with me and my brain. Now, I understand the gap better. To be clear: This does not mean that I am _absolutely_ smarter than my peers (or a better worker!) -- I am only talking about "energy levels". Ask yourself: How does Elon Musk work 80/90/100 hours per week in his early 50s? Probably a lot cocaine and caffeine. Plus, he has super human level of energy. When I listen to Cal Newport's style of working, I think: "Oh, hey, that's me!" Of course, I'm not a university professor and successful author of many best sellers. But the energy level is similar.
>Ask yourself: How does Elon Musk work 80/90/100 hours per week in his early 50s

My guess is that he is exaggerating, he has a track record of doing that. Or that what he means by "work" is actually way more layback than what a cashier at costso means by "work".

To be fair at his level of wealth, there's very little, other than bodily functions and basic hygiene, that he needs to do for himself. You can get a lot more work done when you don't have to worry about cooking, laundry, cleaning, driving anywhere, childcare, random paperwork and administrivia, home maintenance...
Yes, his mental load must be so much lower than someone who needs to juggle all of those tasks. Hat tip for the term "administrivia" -- I never saw it before!
what is your take on caffeine consumption?
Late 40s here and feel the opposite. My experience gives me much better problem solving abilities. I’m sure it’ll fade eventually, but right now I feel like I have an edge over my younger self, rather than anything that appears to be in decline.

(I don’t have kids)