How to Keep Your Energy Level Up
Don't skip meals, especially breakfast.
Get regular exercise.
Eat high-energy foods, including whole-grain breads and cereals, fruits and vegetables.
Avoid fatty foods. Fat takes a long time to digest and makes the body feel sluggish.
Sugar's OK, but don't overdo it.
Get a good night's sleep. Getting even an hour less than you need can result in slower mental functioning.
Drink plenty of fluids. You need to drink the equivalent of a half-gallon of fluid a day.
Coffee and tea will give you a lift -- in moderation. Caffeine is a stimulant.