Maybe... but my mental sharpness increased as soon as I started exercising and watching my diet. I was stress free before and after 45 lbs of weight loss. Maybe

Maybe... but my mental sharpness increased as soon as I started exercising and watching my diet. I was stress free before and after 45 lbs of weight loss. Maybe it has more to do with eating meat, fewer carbs, or the exercise, rather than weight. My impression of mental sharpness is in terms of programming, and also how many typos I make, and how much energy I have to shape sentences when posting comments. I wouldn guess the main reason is that I'm sleeping better, breathing properly at night. Edit: I'd say sleep is definitely one bit of causation behind the correlation right there, but I don't know how big it is.