The kidneys, memory and hearing

Grasp your ear lobes between your fingers and massage them by twisting gently, but vigorously in all directions: fold them, stretch them, make them rotate.
Cover the entire surface of the ears for about thirty seconds.

Next, place your palms flat over your ears so as to obstruct them completely. Place the fingers of both hands on the back of your skull, one on top of the other.

Tap vigorously at the base of the skull with your fingers: this creates a suction effect on the ears that resonates pleasantly in the head. Repeat about twenty times.