人过中年,人体生理机能由旺盛期开始步入衰老期,机体各组织器官的功能逐渐衰退。有些中年男性常常感到力不从心,胸闷气短、情绪不佳、心理压力大、有恐惧感、多梦易醒,记忆力下降、四肢乏力、肌肉酸痛等等,有资料显示,从30岁开始,各项生理机能以每年0.7%至1%的速度下降,心血管系统输血能力每年下降0.7%; Middle-aged people, human physiological function from strong start into the aging period, the function of various tissues and organs gradually decline. Some middle-aged men often feel powerless, chest tightness and shortness of breath, poor mood, psychological stress, fear, dreams wake up, memory loss, weakness, muscle soreness and so on. According to statistics, starting from the age of 30, Physiological functions decline at a rate of 0.7% to 1% per year, and cardiovascular system transfusion capacity drops 0.7% per year.