夏季气候较闷热,出汗较多,一定不要等到口干舌燥时才喝水。当体内发出口渴信号的时候,就表明已经处于比较严重的缺水状态了。失水是早衰和夭寿的主要原因,人体在缺水时全身血容量会减少,心脏灌注压下降,心肌缺血,容易造成心肌损害。此外,体内缺水时,汗液和尿液会相对减少,这样? Summertime climate is more hot, sweating more, must not wait until dry mouth only drink water. When the body sends a thirst signal, it shows that already in a more serious state of water shortage. Loss of water is the main reason for premature aging and premature death. When the human body is dehydrated, the blood volume of the whole body will be reduced, the cardiac perfusion pressure will drop, myocardial ischemia will easily cause myocardial damage. In addition, the body of water, sweat and urine will be relatively reduced, so?