4:00 PM: Breathe Easier
下午4:00：轻松地呼吸一下

For those who are asthmatic or easily exhausted -- working out between 4pm and 5pm may be best. One study of 4800 people by the American College of Chest Physicians found that lung function peaks (at about 20% higher) during this period, with midday exercise returning the lowest lung function.
对于那些气喘吁吁和容易疲劳的人，在下午四五点钟的时候，做几次轻松的呼吸是最好不过的了。美国胸科医师学会对4800人进行的一项研究表明，肺功能在这段时间内达到顶峰（比平常高出20%），而在中午的时候运动，肺功能则处在最低水平。
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