Spending a lot of time in the sun can also cause premature skin aging, leading to fine lines, wrinkles freckles, and brown spots (known as age spots) on your face and the top of your hands. Frequent sun exposure causes thickening of your skin, making it rough and leathery. It even weakens the elastin and collagen in skin, so skin doesn't spring back" as readily. And it damages skin cells, putting you at increased risk for skin cancer.
Sleeping with your face in the same position on the pillow every night can also lead to wrinkles. So can making the same facial expressions over and over again.
You can help prevent premature skin aging and unhealthy skin by changing some of your lifestyle habits. If you smoke, stop. If you love to be in the sun, wear protective clothing including a wide-brimmed hat and apply a broad-spectrum with a sun protection factor (SPF) of 30 or higher 20 minutes before you go outside. Reapply as needed. To avoid sleep-induced wrinkles, sleep on your back.