The 'Hereditary' heart rate challenge proves no one is ready for this horror movie Ifeadi C. 00:17 Mashable, Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsSnapchat is about to launch an augmented reality art project with Jeff KoonsDating app uses AR to make your search for love even weirderIs Superman coming back for 'Justice League' in a black suit?Celebrities and musicians react to the death of Tom PettyFacebook COO Sheryl Sandberg creates scholarship to honor late husbandLines to donate blood in Las Vegas are six hours long
