Sun exposure can add years to your skin. The medical term is photoaging and it’s caused by repeated exposure to ultraviolet rays from the sun or artificial sources like tanning beds. UV rays cause collagen and elastin in the skin to break down resulting in premature wrinkles and changes to skin tone and texture. Over time skin loses volume and becomes loose and leathery. Wrinkles become deeper and lips become thin and lose their shape. Pigmentation becomes uneven and age spots, or solar lentigines, and spider veins can appear. Exposure to UV rays significantly increases the risk of developing skin cancers or precancerous lesions called actinic keratosis.