Forget kale smoothies and 5 AM workouts. According to new research, the real cheat code for a longer life is… sleeping like a teenager on summer break. While you were busy counting macros, your body was actually begging for a solid eight hours. Scientists just confirmed what your sofa already knew: sometimes the most productive thing you can do is absolutely nothing.

One Critical Factor Predicts Longevity Better Than Diet or Exercise, Study Finds