Aunt Flo, the dot, the curse, whatever you call it, it's your period. And when you're feeling all crampy and bloated, the last thing you feel like doing is downward dogging in a crowded yoga studio. But guess what? Hormonal changes can actually give you an advantage at the gym at different times of the month. So we reached out to endocrinologist Dr. Florence Comite and exercise physiologist Dr. Tim Coyle at ComiteMD in New York to find out what really happens to your body during each phase of your period. Then we roped in celebrity trainer Kristin McGee, certified master personal trainer Danielle Girdano and strength and conditioning coach Brandon Mentore to break down the best workouts for each phase of your cycle. Here's the rundown on how you can maximize your fitness goals all month long.