Also take into account your eating habits.
Eat lots of healthy fats and your brain will sing. If you eat a bunch of carbs and little fat, you'll likely experience brain fog.
Yup, this is important stuff. In my case, my diet has been steadily improving, on average, throughout my adult life. My wife and I are now doing roughly 20/4 intermittent fasting most days of the week, and that food is quite healthy.
When making claims like this, please link a reliable source, because I have a hard time believing diet has a statistically significant impact on cognitive performance - excluding caffeine or other stimulants of course.
I have the most reliable source. For me, that would be me. You don't need some double blind study. If what you're trying to achieve is mental acuity, it's self-evident, really. Just test different kinds of food and you will notice.
BTW nostromo, I did write "healthy food" in my other comment ;-)
> I have a hard time believing diet has a statistically significant impact on cognitive performance - excluding caffeine or other stimulants of course
Oh for me it's just the opposite:
Caffeine makes me jumpier, but I'm not at all sure it improves my cognitive performance. Do you have any evidence caffeine has positive impact on cognitive performance?
I'm pretty sure eating healthy improves the clarity of my thinking. When I was young, I'd eaten a bar of chocolate for lunch a couple of times when short of time during a go tournament. This has invariably been a terrible idea and worsened my performance.
My two cents: beware of burn out.