I am a few months into a new job, and I absolutely love it! My only problem is that, coming from an academic environment, I'm finding it really difficult to stay focused for 8 hours a day. Usually in the morning I will be good until about 11 or 12, and then I start to slide downhill from there. After lunch I start to get sleepy and work at about 1/3 my normal efficiency, and get distracted easily. I get plenty of sleep at night, but it doesn't seem to help much. When I was in school I would get the exact same way, but since with school the vast majority of my work/studying was done at home, I would just take a 30-45min nap and wake up feeling refreshed and ready to go. Unfortunately, I can't do that on the job . Plus, the fact that my job involves sitting down at a computer for most of the day doesn't help.
So, does anyone have any tips for staying focused and alert for long periods of time?