The Benefits of Bad Dreams

True nightmares can feel frighteningly real and, according to researchers, thats a good thing. A new theory suggests that bad dreams work as a type of emotional release, turning pent-up anxieties into a past memory and making you feel as if youve already lived through whatevers been bothering you. And since humans deal with bad memories better than ongoing fears, were able to put it behind us, instead of constantly worrying about what could happen. Theres also no better feeling than waking up from a post-apocalyptic world crawling with spiders only to be greeted by the comfort of your bed.