Why do we need sun protection? Two factors make you pay attention to it

In daily life, one of the most common things people do in summer is to do a good job of sun protection. So, why do we need sun protection? These two reasons are worthy of everyone's attention.

Prevent sunburn

The summer sun is not as gentle as the spring sun, but rather extremely scorching. When the skin is exposed to high temperatures for a long time, it can easily cause skin damage and cause skin problems.

The wavelengths of solar ultraviolet rays are divided into UVA and UVB. UVB is the solar medium-wave erythema effect ultraviolet light, which can penetrate the clouds and reach the human skin, causing erythema effect on the human body, sunburning the skin, and causing redness, swelling and peeling of the skin.

Preventing skin from sunburn mainly means preventing medium-wave erythema effect ultraviolet rays. Long-term exposure to the sun can cause acute redness and swelling of the skin. In severe cases, it can also lead to the formation of blisters, which can cause more serious skin problems. Preventing skin from sunburn is the most basic of summer sun protection. Only when the skin is not damaged can skin care be more effective and make the skin healthier.

Prevent photoaging

Photoaging is a type of skin aging. It is caused by long-term exposure to sunlight. The main symptoms are roughness, thickening, and sagging of the skin. In severe cases, it can also cause deep and coarse wrinkles, pigmentation or capillary dilation, and even various tumors.

The direct cause of skin photoaging is the sun's ultraviolet rays, UVA, which are long-wave ultraviolet rays with dark spot effects. They have strong penetrating power and can directly reach the dermis of the skin, destroying elastic fibers and collagen fibers, and tanning the skin. UVA can cause the skin to age rapidly, and sun protection is to slow down this aging process.

Photoaging is a symptom of premature skin aging that may appear before the age of 30, manifested as abnormal and disordered pigmentation and irregular pigment spots. Therefore, the second major task of sun protection is to prevent photoaging.