[stevenkovar]

Your diet is only part of the equation.

Diet, sleep, and exercise are needed in combination. The highest performers across many professions tend to sleep the most. Exercise helps make better use of the foods you are eating and produces the hormones you need to think clearly.

As for supplements to help, examine.com has a bounty of information: https://examine.com/topics/Cognition/

[thisisit]

> Diet, sleep, and exercise are needed in combination

This cannot be stressed enough. I have started to sleep at least 7.5 hours each day. But most of the days it is proving to be difficult and I am able to complete only 6 hours. Still having a routine comfortable sleep has worked wonders for my mood and productivity.

[slig]

For me, cutting coffee helped me to sleep better and be less anxious.

If you have trouble sleeping, try going cold turkey on coffee. It will suck for a couple of days, but you'll feel better.

[throwaway080383]

Alternatively, set yourself a cutoff time of day for when you stop drinking. My girlfriend can drink coffee an hour before bed, but I need to take my last sip at least 8 hours before.

[gtsteve]

Perhaps this is well known but I discovered this only two weeks ago - you can buy yellow-tinted glasses to block blue light. I wear them for an hour or so before bed (which my partner mocks me for) but it really seems to help me get to sleep. I'm not sure if that's the placebo effect of course but it does seem to work.

[drchickensalad]

Every computer or phone I own has a screen display filter to rid those blues. Really helps reduce the artificial stimulation for me.

Once you get used to it, turn it back on sometime temporarily. It's incredibly blinding.

[clueless123]

My tip: A short "siesta" (Nap in Spanish) after lunch is a time proven way to reset the system for a productive afternoon.