Do this for at least several minutes to maximize the benefits. Ankle flexibility is a must-have for several sports, including swimming, running and sports that require quick pivots, like basketball or baseball. Never exercise if you are not feeling well. When you exercise, your body is causing a bit of damage to your muscles, which it needs to repair to make them stronger. If you are sick, your body is busy repairing other issues. Exercising will only make you feel worse.
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