事实：研究发现睡眠和许多健康问题直接相关。
Fact: Studies have found a direct relationship between sleep and many health problems.
研究者也认为也许有个“最佳的睡眠时间”可以保持健康。
Researchers also think there might be an "optimal sleeping time" to stay healthy.
加州大学洛杉矶分校的研究显示，女性的友谊谁拥有健康的睡眠更好。
Studies at UCLA reveal that women who have healthy friendships sleep better.
加州大学洛杉矶分校的研究显示，女性的友谊谁拥有健康的睡眠更好。
Studies at UCLA reveal that women who have healthy friendships sleep better.
应用推荐