0
votes
0answers
30 views

How to maintain concentration after 7 hours [duplicate]

Most days for me start at 0430 and I get to working at my desk around 0615. I eat breakfast with caffeinated coffee at 0700 and lunch at 1130. Just about every day, I "hit a wall" around 1400, feeling ...
26
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12answers
1k views

How to concentrate without external stimulants? [closed]

I'm a programmer and my work requires intense mental focus. My goal is to get 8 clean, productive hours of programming per day. I tried this yesterday, and I managed to get only 2:35 hours of clean ...