What Every Woman Needs to Know About Hydration

When you work out, you sweat: That's true no matter what your age, sex, or fitness level. Sweating is critical to keeping your body temp regulated, but with each drop of perspiration, you're losing essential electrolytes and fluids that ensure your bod functions at its best. Lose too much and you may start to feel tired, dizzy, lightheaded, and achy. That's dehydration. Turns out, combating those fluid losses may not be a one-size-fits-all proposition. Female physiology shifts with the monthly changes in estrogen and progesterone levels, and those fluctuations have an impact on our ability to hydrate. Plus, research shows that when women drink fluids according to the standard recommendations, they may not reach peak performance—probably because many of those recommendations were developed from tests on college-age guys. Who knew!
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