每年三伏天是心脑血管疾病的第一高发期,发病人数约占全年发病人数的1/4。 三伏天有气温高、气压低和空气湿度大三大特点。在高温时(达到33℃以上),人在安静状态下也会汗流浃背,加上体力活动,每天出汗量可达3000毫升以上。此时,体内的组织液和血液减少,血液浓度增高,血液黏度也随之增大,极易发生血 Dog days every year is the first high incidence of cardiovascular disease, the incidence of about the number of annual incidence of 1/4. Three days of high temperature, low air pressure and air humidity three major characteristics. At high temperatures (up to 33 ℃ above), people in the quiet state will sweat, coupled with physical activity, the amount of sweat per day up to 3000 ml or more. At this point, the body of tissue fluid and blood decreased, increased blood concentration, blood viscosity also increases, prone to blood