Stress has already been linked to beauty issues like rosacea, acne, psoriasis, hair loss, and nail biting. So saddle up to rid yourself of worries (and complexion issues). "Acne can also set in when you don’t get enough sleep or you’re stressed out," Dr. Goldfaden said. "Sex helps alleviate both of those issues." Plus, you can ward off wrinkles, too. Hormones released during sex help boost collagen production.