Objective: To investigate the effect of shengmaisan prescription granule and it's modified prescription on the anti-stress ability. Methods: The mice were randomly divided into 5 groups: The blank control group,HJT group( positive control group),shengmaisan group,yiqi shengmaisan group,huoxue shengmaisan group. All groups were intragastrically given the drugs for seven consecutive days once per day. Then the swimming time under burden,the time of hypoxia tolerance under normal pressure,the survival time aft...