‘Long sleep duration may be associated with an increased risk of cardiovascular disease because of comorbidities that lead to fatigue, such as chronic inflammatory disorders and anaemia,’ they wrote in the Journal of the American Heart Association, ‘Depressive symptoms, low socioeconomic status, unemployment and low physical activity are also associated with long sleep duration.’
“长时间睡眠也许与风险增加的心血管疾病(例如慢性炎症性疾病与贫血)有关,这些疾病的合并症将导致疲劳,”《美国心脏协会杂志》这样说到,“抑郁症、低社会经济地位、失业以及低体力活动也与长时间睡眠联系在一起。”
The lowest risk was shown for those who slept between seven and eight hours per day, the researchers said. For people who got less sleep, the risk of disease and death rose gradually, but not enough to be statistically significant. But for people who got more than this, the effect was dramatic.
研究者称,睡眠时间在7—8小时之间的人群面临的风险最低。在这个基础上睡眠减少,疾病与死亡风险相应逐步增大,但数据表现并不显著。然而对于睡眠时间在8小时之上的人,影响之大让人嗔目。
People who slept for nine hours a night had a 14 percent increased mortality risk, among those who got 10 hours the risk went up 30 percent and those who slept for 11 hours were 47 percent more likely to die an early death. People who got 10 hours or more were also at a 56 percent increased risk of dying from a stroke and 49 percent increased risk of dying from cardiovascular disease.
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