Here's How to Keep Exercise From Messing Up Your Skin

[Guide]

If you have rosacea - a skin condition that causes redness and a bumpy texture - or are prone to broken blood vessels, beware: Extreme heat combined with excessive sweating can cause inflammation, making these conditions worse. "In some cases, it could permanently dilate capillaries," says Dr. Frank. Other problems that occur: dark spots and melasma (aka larger dark patches). While research is limited, some doctors (including Dr. Frank) believe that heat can stimulate the pigment-making cells. Yahoo Celebrity, Skin, Cosmopolitan, August 22, 2016