A study from the University of Southern Queensland, published in the Radiation Protection Dosimetry journal, found that beards block 90 to 95 percent of UV rays, thereby slowing the aging process and reducing the risk of skin cancer. Got asthma? Pollens and dust simply get stuck in that lustrous facial hair. Additionally, all that hair retains moisture and protects against the wind, keeping you looking young and fresh-faced. What’s more, shaving is usually the cause of ingrown hairs and bacterial infections that lead to acne.