Apple watches can stop you having nightmares. Sensors that monitor heart rate and movement can detect when users are having a bad dream. The watch then gently vibrates to shake the wearer out of it, but tries not to wake them up. Speaking at the Web Summit in Lisbon, Apple’s Dr. Sumbul Desai said: “Sleep is almost the closest anyone gets to death. It’s a morbid way of thinking about it, but it means the watch only needs to pick up on slight movements. If you’re having a nightmare, you’re going to have more physiological signals, such as moving around more.” Desai said the development has been really useful for people suffering post-traumatic stress disorder (PTSD), who are susceptible to night terrors. The feature is the brainchild of a company called Nightware and is available through an app of the same name.
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