French swimmer Caroline Jouisse tracks her menstrual cycle to optimize training for Paris Olympics, using data shared with coaches.

French swimmer Caroline Jouisse tracks her menstrual cycle using her phone, sharing data with her coaches ahead of the Paris Olympics. The data helps her plan ideal times to build muscle, which is best during the middle and end of her cycle when testosterone levels are higher. Research on the effects of menstrual cycles on athletic performance is understudied, but France's National Institute of Sport launched the Empow'her program to address this gap.

April 01, 2024
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