Love the next day the whole body weakness, may need to consider because of anemia, kidney deficiency, disease or frequent sex, etc. 1, anemia patients after sex will appear insufficient blood supply, showing a tired state; 2, too tired may also belong to the state of kidney essence deficiency, once sex will appear more serious body deficiency; 3, such as hypertension, hyperlipidemia, diabetes and other diseases, in sex After sex will also be depressed, physically and mentally exhausted; 4, sex is too frequent, too many times, too much physical exertion, will also lead to general weakness. If the body is tired and weak after sex, it may also be simply excessive physical exertion, must pay more attention to rest, reduce the frequency of love, many times such phenomena need to pay attention to observe the physical condition, if necessary, to the hospital to clarify the cause.