Sweet Home actress Lee Si Young revealed shocking details about how her intense fitness routine disrupted her body’s hormonal balance.
The popular K-drama star shared her health ordeal during a recent appearance on Shin Dong Youp’s YouTube talk show Zzanbro.
Lee Si Young disclosed that her extreme workout regimen while filming Sweet Home caused her testosterone levels to rise dangerously high. The topic arose when her co-star Kim Dasom referred to her as a “testosterone woman” during the show.
The actress revealed she had to visit hospitals consistently for about a year due to hormone issues. While preparing for Sweet Home, Lee pushed her body to extreme limits through rigorous training.
Her muscle mass exceeded 30kg for the first time in her life. Her body fat percentage dropped to around 6%, creating an exceptionally lean physique that became widely discussed after the show’s release.
The drastic physical transformation completely stopped her menstrual cycle. Lee, who previously boxed as a light flyweight, was familiar with this condition from her boxing days. Back then, regaining weight restored her period, but this time the usual solution failed.
Medical tests revealed that her muscle mass had become so high that her body could no longer recognize itself as female. The elevated male hormone levels essentially tricked her body into behaving like a man’s body.
After her health scare, she admitted she had become “a bit scared of losing that much.”
Lee Si Young recently went through a divorce after eight years of marriage to a non-celebrity in the restaurant industry. She married in 2017 and has a son named Jung-yoon.
The actress clarified misconceptions about her divorce during the YouTube show appearance. People mistakenly believed she divorced the CEO of a production company she collaborates with for social media content.
Lee explained that the production company CEO often gets asked “Are you okay?” during meetings due to the misunderstanding. She joked that he has become a “divorced man” without ever being married.
Despite the divorce, Lee remains motivated to work harder. She dismissed rumors that their collaborative channel ended because of the divorce.
Lee Si Young currently stars as the female lead Kong Miri in the ENA K-drama Salon de Holmes. The show airs every Monday and Tuesday at 10pm KST.
