The thymus gland, beneath the hollow of the throat and behind the breastbone, is active when we're young, then slows as we age; it contributes to the development of a healthy immune system. "It feels good to stimulate the area periodically during the day, using the fingertips, alternating with the right and left hand, to deliver a steady thumping for about 20 thumps on the thymus. Then carry the thumping up to stimulate surface circulation—on the throat and along the jaw, from chin to ear. Tapping feels wonderful around the eyes; you can go gently right on the closed lid. Go light on the forehead, temple, and scalp, heavy on the back of the neck, and heavier still on the shoulders. Continuing, move down around the front and back of the rib cage with a light, rapid cuffing motion," Kiss says. "Top it off by heartily pummeling your lower back and hips, tapping down each arm, and shaking the hands."