中国有句民谚:“笑一笑,少一少;愁一愁,白了头。”这是经验之谈。科学家告诉人们,人在焦急的时候,体内便分泌许多压力荷尔蒙,以应付危急之事,所以心跳加快、脑部吸入更多空气、热能涌进肌肉。在面对一头凶兽或一辆迎面而来的汽车时,这些身体上的变化确实有助于我们奔逃或闪避。可是,若面对的只是日常生活中常见的压力,如没赶上船车,被扣发奖金或受到批评,等等,大量分泌压力荷尔蒙就有点小题大做了。科学实验 There is a Chinese proverb in China: “It is a conversation of experience, ” “smile, less one; worry about a worry, white head.” Scientists tell people that when people are anxious, many stress hormones are secreted in the body to cope with critical events. Therefore, the heart rate is increased, more air is taken in the brain, and the heat can flow into the muscles. These physical changes do help us to flee or dodge while facing a fierce beast or an oncoming car. However, if we are faced with common pressures in our daily life, such as not catching a boat, getting a bonus or being criticized, etc., a lot of stress hormones will be a bit overkill. science experiment