This is why you exercise your abdominal muscles. If you really practice six-pack abdominal muscles, it will give people a very temperament feeling intuitively. For a man, having six-pack abdominal muscles is naturally an important aspect to attract girls. According to Harvard University, girls are very concerned about men's health. If they see a strong man, they will generally express their affection, because girls feel that strong men have a sense of security, especially abdominal muscles attract girls most. Therefore, exercising six-pack abdominal muscles is scientifically more attractive to women than the book 100.