ScienceBattling bad dreamsTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience05/14/2021May 14, 2021Dreaming is an important part of healthy sleep. Nightmares, on the other hand, can often feel traumatic. What's behind them and how do you know when to seek help?https://p.dw.com/p/3szP6Advertisement