How does the sun cause skin cancer?

The sun's ultraviolet (UV) radiation is the primary cause of skin cancer. UV radiation is a type of electromagnetic radiation that is emitted by the sun and other sources, such as tanning beds. There are two types of UV radiation that reach the Earth's surface: UVA and UVB.

* UVA radiation has a longer wavelength than UVB radiation and can penetrate the skin more deeply. UVA radiation is responsible for causing skin aging and wrinkles, and it can also contribute to the development of skin cancer.

* UVB radiation has a shorter wavelength than UVA radiation and is more likely to cause sunburn. UVB radiation is the primary cause of skin cancer.

When UV radiation hits the skin, it can damage the DNA in skin cells. This damage can lead to the development of skin cancer. The risk of skin cancer increases with the amount of UV radiation exposure. People who are exposed to UV radiation for long periods of time, such as outdoor workers or people who use tanning beds, are at an increased risk for skin cancer.

The best way to protect yourself from skin cancer is to limit your exposure to UV radiation. You can do this by:

* Seeking shade when the sun is strongest, between 10am and 4pm.

* Wearing protective clothing, such as long sleeves and pants, a hat, and sunglasses.

* Using sunscreen with a sun protection factor (SPF) of 30 or higher.

* Reapplying sunscreen every two hours, or more often if you are swimming or sweating.

* Avoiding tanning beds.

By following these tips, you can help reduce your risk of developing skin cancer.