Relax, my friends! All those furrowed eyebrows and frowny faces are doing stuff to your complexion! Recent studies show that there is a direct and positive correlation between a number of nasty skin conditions including acne, redness, dryness, wrinkles, and your stress level. So, if you want your skin to sparkle this winter, go ahead and do some sit-ups, eat some pie, go to the places you love. Whatever it takes to make you feel good, because if these scientists have done their math right, what makes you feel good makes you look good.