If you're using an alarm clock then you're not getting enough sleep. I've found that fruit as the first meal is effective for alertness and many diet problems.

If you're using an alarm clock then you're not getting enough sleep. I've found that fruit as the first meal is effective for alertness and many diet problems. A small amount of exercise also reduces sleep. Effectively, you get exercise time at no cost. However, you have to remember to do it before you get exhausted from coding.