Jeong Ye-ji, a 31-year-old female office worker living in Gwanak District, Seoul, switched her gym to a women-only fitness center two months ago, which has made her workout routines more satisfying. “For one thing, I became more confident since I don't have to worry about getting unwanted stares from men. I can wear tight outfits such as leggings, cycling pants and tank tops without feeling self-conscious,” she said.