Cryotherapy, originally developed for rheumatoid arthritis patients, is now a thing among models, athletes, and beauty junkies. It requires spending a few minutes in a chamber where it's negative 264 degrees in order to improve your sleep, increase your metabolism, boost your collagen production, reduce your cellulite, and smooth your wrinkles. Sounds slightly terrifying, but promises major, with my face contorted like that emoji with the giant eyes and no mouth—just so curious—I booked a session. Original Article