TED：为什么你总是觉得很累

【为什么你总是觉得累】Why are you always tired?

- Short hours of sleep / 睡眠时间不足

- Lack of physical avtivity and a poor diet / 缺乏运动和不良饮食

People who exercise regularly report sleeping better.

经常锻炼的人睡得更好。

- Reliance on coffee / 对咖啡的依赖

Caffeine blocks adenosine in your brain, which normally accumulates through the day and makes you sleepy at night.

咖啡因会阻断大脑中的腺苷，而腺苷通常会在白天积累，使得晚上变困。

Consuming coffee or energy drinks less than 6 hours before bed can ultimately affect your sleep quality.

睡前不到6小时喝咖啡或能量饮料最终会影响你的睡眠质量。

-  Not staying hydrated / 未保持水分充足

-  Drinking before bedtime / 睡前饮酒

-  Irregular sleep schedule / 睡眠时间不规律

-  Anxiety / 焦虑

Fatigue is one of the main symptoms of generalized anxiety disorder.

疲劳是广泛性焦虑症的主要症状之一。

- Social jet lag / 社交时差