The old tree is the first to die, but the old one is weak. More tiptoe, the person is not old, can also strengthen the constitution, delay the aging. Traditional Chinese medicine exercises are on tiptoe. You can put your feet together, tiptoe, then relax, repeat, and do dozens of times a day. Tiptoe movement is not limited by the site, time and equipment, and can reduce fatigue effectively and quickly every 5-10 minutes. The heel is "the heel of essence", often on tiptoe to stimulate the meridian of the kidney, healthy kidney yanshou.