Walter G. Barry

Sunshine is a treasure, but you will see old age when you bask in the sun

Sunshine is a treasure, sunbathing is good for your health. But you "see you old in the sun"? The growth of everything depends on the sun, and people cannot do without the sun. At one time, sunbathing became a popular way of leisure. But after experiencing some painful consequences, the harmful side of sunlight to the skin has gradually been realized by everyone. So, what is the relationship between sunlight and human skin?