Toes of both feet close together is the ground, forced to lift the heel, then relax, repeat 20 to 30 times. Although simple, good results can be fitness. Tiptoe, the bilateral posterior lower leg muscles squeeze out every contraction of blood volume, cardiac output is roughly equivalent to the pulse of the heart. So, when you play chess, playing cards, playing computer or a long established fixed, it is best to do about 1 hour 1 tiptoe movement, can lower extremity blood flow back smoothly. And tiptoe exercise limbs and head can also eliminate the long standing with the brain and eyes suddenly focused and black, head faint defects.