There are many ways to wake up instantly when very sleepy, you can yawn, stretch, massage the face or head acupuncture points, you can also do simple stretching exercises. Of course, special emphasis on good sleep habits, the day before do not stay up too late, do not sleep too late, do not look at the phone during sleep, while a short nap can also make us quickly recover to better energy and strength, you can also take to eat some cool and delicious fruit, or drink some strong tea, coffee, in addition to a glass of ice water may make us stay awake instantly. If sleepiness may be more of a hint of physical fatigue, physical strength and energy decline, a better lifestyle in this case is a positive prevention to avoid sleepiness.