They funded their own study of their own product: https://www.focusatwill.com/app/pages/science-of-focus-conce... This “paper” is marketing material, and an advertisement for their service.
They funded their own study of their own product: https://www.focusatwill.com/app/pages/science-of-focus-conce... This “paper” is marketing material, and an advertisement for their service.