With record heat and extreme UV index warnings across the country, understanding the harmful effects of UV sun damage on the skin is more important now than ever.Â
Skin cancer is the most prevalent form of cancer in the United States, affecting 1 in 5 people at some point in their lifetime. Understanding the correspondence between sun damage and skin cancer can help to protect you and your loved ones. Here’s what you need to know.
Understanding UV Light
UV (ultraviolet) sunlight is made of two different wavelengths: UVA and UVB rays.Â
UVA rays penetrate deeper into the skin, affecting the dermis, and cause premature aging, such as wrinkles and age spots, by breaking down collagen and elastin. These rays are present throughout the day and can penetrate through windows and clouds.
UVB rays affect the outer layer of the skin, the epidermis, and cause sunburn. They are the primary cause of skin cancer, as they can directly damage DNA in skin cells. UVB rays are strongest between 10 AM and 4 PM and vary with the season and location.Â
Both UVA and UVB rays contribute to skin cancer and photoaging, making broad-spectrum sunscreen and protective measures essential.
How UV Sun Damage Causes Skin Cancer
UV rays are a type of radiation that causes skin cancer by damaging the DNA in skin cells. This damage can lead to mutations that disrupt normal cell function, causing cells to grow uncontrollably and form tumors.Â
Each type of UV light affects the skin differently, but both can contribute to the development of skin cancer. UVA rays are responsible for genetic mutations over time in deeper layers of the skin, while UVB rays directly damage the DNA in the skin’s outer layer.
Skin Cancer Prevention Tips
The most important thing to remember when it comes to UV sun damage and skin cancer is that it is cumulative. Just 5 sunburns in your lifetime can significantly increase your risk of developing skin cancer.Â
Repeated sunburns cause cumulative DNA damage in skin cells, which can lead to mutations and the uncontrolled growth of cancerous cells. This highlights the importance of consistent sun protection to minimize the risk of skin cancer.Â
Being consistent in practicing good sun safety habits can help to prevent skin cancer from developing and keep your skin healthy and strong for years to come.
- Wear sunscreen with at least 3PF 30 and reapply every 2 hours
- Avoid excessive sun exposure during peak hours – 12 PM to 3 PM in most places
- Wear loose, protective layers like shawls, hats, and coverups
- Avoid sun tanning and tanning beds; use alternative self-tanning methods
- Get a skin cancer screening with a board-certified dermatologist at least once a year
At Skin Care Research, our partnered dermatologists and researchers are at the forefront of developing skin cancer treatments and preventative products. Our dedication to your skin health drives our commitment to conducting effective, thorough clinical trials and contributing to the future of healthcare for all.
If you’d like to learn more about our currently enrolling trials, click here. If you qualify, you may be compensated for your time.Â
