We all know that too much stress is bad for our health. A 2012 study, for example, found that stress increases risk of depression, heart disease and infectious diseases, and increases inflammation throughout the body—which, by the way, increases skin aging, as well. When we’re stressed, we’re also less likely to eat right, get enough sleep, or stick with our exercise routines. That affects our overall health, but also our appearance. The skin fails to get the nutrients it needs to repair itself. You can tell by that inconvenient acne eruption or psoriasis flare up.