Grains are a good source of energy. When you eat carbohydrates, your body converts them into energy. Whole grains break down slowly, so they provide a steady source of energy. Simple sugars, on the other hand, break down fast, so they provide a quick peak of energy, followed by a crash. When you crash, you’ll feel tired, sleepy and low in energy. To stay awake, reach for foods that provide a steady release of energy, such as brown rice, whole wheat, wild rice, barley, rye and oats.
Fruits provide a quick burst of energy, but they don’t elevate sugar as much as starches and simple sugars, so they’re an acceptable option. Cardiothoracic surgeon and author Dr. Mehmet Cengiz Oz recommends fruits such as pineapple as it contains vitamin C, which perks up the brain and will improve your chances of staying awake.
Other Change (Drink Water)
Dehydration can make you feel tired and sleepy. To stay awake, drink at least eight glasses of water a day. Try eating a small snack or meal every three to four hours rather than a couple of large meals a day. This will help steady your blood sugar and maintain your energy steady so that you stay awake and energized.