No matter what the season, we could all use an extra trip to the gym. Beach bod dreams aside, there are some real myths out there about how women should think about exercising. I you missed the first set, click here.

"Second, you don't need to pound the body five times a week; you may increase endurance and lose fat, but you'll also lose muscle."

"CrossFit encourages overtraining and has been linked to increased incidents of Rhabdomyolysis, or Rhabdo, which is the breakdown of muscle tissue that leads to the release of muscle fiber contents into the blood." Osborn says Rhabdo can cause kidney damage.

"Third, the creators of CrossFit have encouraged the Paleo Diet, a low-insulin diet. Insulin is a necessary part of building muscle."

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