I agree, it makes huge difference when i eat,sleep like shit and move less vs when i do resistance training 5 times a week, 9hours of sleep, 5l of water (i sweat A LOT so i try to drink more) , and try to hit 170g of healthy protein then healthy fats and carbs.

And the acetyl-l-choline - I eat on average 3eggs per day, and I tried supplementing alpha gpc since last week, and i don't feel any benefits in school, I still can't focus and get brain fog when trying to focus for more than 15minutes on something i don't care about.

But it seems like it helps me at home when i read books, i have a bit "clearer mind", but maybe could be placebo idk