There is good evidence for cognitive and physiological arousal in chronic insomnia.

在慢性失眠里为认识和生理的唤醒有好证据。

youdao

If you have trouble falling or staying asleep at least three nights a week for more than a month, you could have chronic insomnia.

如果每周有三晚以上难以入睡，持续一个月以上，那么就是通常的慢性失眠症。

youdao

I can't think of anyone more dissimilar to the hard-boiled Hemingwaythan Michael Jackson, yet he too suffered from chronic insomnia.

迈克尔·杰克逊是我能想到的和硬汉海明威最没有共同点的人，不过他同样遭受过长期失眠症的痛苦。

youdao

For those with chronic insomnia, just four to six sessions of CBT can work better than pills, with fewer side effects, multiple small studies suggest.

FORBES: Magazine Article

It was the act of restoring a wrecked house in Connecticut with her ex-husband Andy that steered Ms Stewart, a workaholic fuelled by ambition and chronic insomnia, towards homemaking as a career.

ECONOMIST: Face Value

While individuals vary in how long they can tolerate chronic stress, research shows it sharply increases the risk of insomnia, chronic disease and early death.

WSJ: When Stress Is Good for You