& nbsp; really hard, rdquo;, I do not know when to become the mantra of many people. After a long vacation, fatigue seems to plague more professional families. In fact, fatigue is not just caused by fatigue. There are many factors in life that consume people’s energy and are tiresome. 1. Drugs Taking diuretics, antidepressants, certain anti-cold drugs or cough syrup can cause fatigue. After the drug is stopped, the fatigue will disappear. 2, obesity Overweight is a heavy burden on the human body, excess body fat can make people feel tired. 3. Lack of exercise People mistakenly think that sports will be exhausting. But the opposite is true. If there is no exercise, the muscles will become weak. When the body wants to use them, it will take more effort. 4, sleep problems Some people often use the weekend to sleep late, and plausible words to argue that this is recharge. As everyone knows, late sleeping lately disturbs the biological clock and directly affects the mental state. 5, psychological problems Depression is the most common cause of fatigue; bad mood, excessive tension can also sleep poorly, causing fatigue.