Cyclic hyperventilation protocols involving repeated deep breathing and brief breath holds increase alertness and energy.

“It works the first time and it works every time to increase epinephrine and thereby energy. And in fact, there are protocols and great scientific studies of using cyclic hyperventilation for periods of minutes, if not longer, where for instance, you would do 25 big inhales and exhales followed by a brief breath hold with your lungs empty, then repeat 25, then brief breath hold, excuse me, exhale, hold your lungs empty. And then repeat again for a third round, if you like. If you do that over and over, you're going to be very alert. You're going to have more energy. You're going to feel like you want to move around a”