BuzzFeed Life reached out to Dr. Florence Comite, a New York City-based endocrinologist who specializes in precision medicine, to ask her if women who follow workout plans that call for lifting moderately heavy weights a few times per week for 45 minutes or an hour each time will get noticeably bulky. Her answer? "Unlikely."
She explains that getting super muscular happens more readily to people with high levels of testosterone, levels generally present in men. Most women who don't have a condition (like polycystic ovary syndrome, for example) that results in elevated testosterone just don't have the hormones needed to pack on big, visible muscles.
The exception: high-level athletes who spend hours each day lifting heavy weights and eating a tightly controlled, low-fat diet, which, Comite says, would be a full-time job.