Generally speaking, it must be harmful. Are you talking about slimming clothes like corsets? This is absolutely tight. When the body has been under such high pressure, the internal organs will definitely feel uncomfortable. If you don't feel uncomfortable after wearing it for two days, it means that your slimming clothes should be fit. It is recommended to wear it within 8 hours every day. When the time for loving beauty has passed, let the cells move freely at other times.