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    Athlete's foot is a fungal infection of the skin. Moccasin-type athlete's foot may begin with minor irritation, dryness, itching, burning, or scaly skin on the sole and heel of the foot. It then progresses to thickened, cracked, peeling skin. In severe cases, the toenails become infected and can thicken, crumble, and even fall out.

    ByHealthwise Staff
    Primary Medical ReviewerPatrice Burgess, MD - Family Medicine
    Specialist Medical ReviewerE. Gregory Thompson, MD - Internal Medicine

    Current as ofMarch 12, 2014

    WebMD Medical Reference from Healthwise

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    Ensure you're exercising hard enough to get a good workout, but not strain your heart.

    While you are exercising, you should count between...

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    Beats
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    Seconds