The Sun warms our planet and nourishes our plants. Daily doses of sunlight help improve mood, regulate sleep, and aid in maintaining healthy levels of Vitamin D. However, it is not without its dangers. UV radiation is part of the natural energy produced by the sun. UV light has shorter wavelengths than visible light – your eyes can’t see it, but your skin can feel it. UVA is associated with skin aging and UVB is associated with skin burning. Both UVA and UVB contribute to the risk of skin cancer and eye damage.
UV radiation is a proven human carcinogen. It causes basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). Sunburns play a strong role in the development of melanoma which is often a more dangerous type of skin cancer. The likelihood of developing skin cancer can be easily reduced by protecting yourself against UV radiation.
The American Academy of Dermatology recommends a broad-spectrum water-resistant sunscreen with a SPF of at least 30 along with sun-safe clothing and eyewear. Look for the Skin Cancer Foundation Seal of Recommendation when buying products. Here are some tips when choosing a sunscreen. 1. Sun Protection Factor (SPF) tells you how long the sun’s UVB rays would take to redden your skin. So, an SPF of 15 would allow you to be out in the sun 15 times longer than if you weren’t wearing sunscreen. However, it needs to be applied generously and evenly, and reapplied every 2 hours. 2. Broad spectrum indicates it protects against both UVA and UVB rays. 3. Water resistance is not waterproof. These sunscreens are usually effective for 40 minutes in the water so, reapplying frequently is essential.