a mental illness in which someone, usually a man, worries that their body is too small and weak, and exercises a lot, eats particular foods or takes drugs in order to try to build bigger muscles

Many men who pump iron to build muscle suffer from muscle dysmorphia. 许多通过举重来锻炼肌肉的人都患有肌肉上瘾症。

Researchers blame muscle dysmorphia on the modern trend for muscular movie heroes. 研究人员认为肌肉上瘾症应归咎于追捧肌肉型电影英雄的现代潮流。