Bad habits that harm yang energy include lack of sleep, irregular diet and excessive sex. 1. If you stay up late for a long time, irregular work and rest lead to insufficient sleep, it may disrupt the balance of yin and yang in your body. With the accumulation of time, it may damage yang energy. 2. If you don’t eat regularly, consume cold food for a long time, or have frequent hunger and fullness, you may damage your yang qi, resulting in general weakness, coldness, diarrhea, abdominal pain and other manifestations. 3. If you have an excessive sex life, it may damage your body and deplete your yang qi. It is recommended to improve the bad habits of life after the appearance of yang deficiency, and timely consultation, under the guidance of the physician’s diagnosis and selection of medication, so as not to delay the condition.