Most people are not aware that skin cancer, while largely preventable, is the most common form of cancer in the United States, with more than 1 million cases reported annually. By following a number of simple steps, you can still enjoy your time in the sun while protecting yourself from overexposure.

Other than staying indoors, no single step can fully protect from overexposure to UV radiation, so use as many of the following actions as possible.

• Limit Time in the Midday Sun: The sun’s rays are strongest between 10 a.m. and 4 p.m. Whenever possible, limit exposure to the sun during these hours
• Seek Shade: Staying under cover is one of the best ways to protect yourself from the sun. Remember the shadow rule: “Watch Your Shadow. No Shadow, Seek Shade!”

• Always Use Sunscreen: A broad-spectrum sunscreen, with a sun protection factor (SPF) of at least 15, blocks most UV radiation. Apply sunscreen liberally on exposed skin and reapply every two hours when working or playing outdoors. Even waterproof sunscreen can come off when you towel off sweat or water.
• Wear a Hat: A hat with a wide brim offers good sun protection for your eyes, ears, face and the back of your neck — areas particularly prone to overexposure to the sun.

• Cover Up: Wearing tightly woven, loose-fitting and full-length clothing is a good way to protect your skin from the sun’s UV rays.
• Wear Sunglasses That Block 99-100% of UV Radiation: Sunglasses that provide 99-100% UVA and UVB protection will greatly reduce sun exposure that can lead to cataracts and other eye damage. Check the label when buying sunglasses.

• Avoid Sunlamps and Tanning Salons: The light source from sunbeds and sunlamps damages the skin and unprotected eyes. It’s a good idea to avoid artificial sources of UV light.
• Watch for the UV Index: The UV Index provides important information to help you plan your outdoor activities in ways that prevent overexposure to the sun. Developed by the National Weather Service (NWS) and EPA, the UV Index is issued daily in select cities across the United States.

Content provided by U.S. Environmental Protection Agency's SunWise program. The U.S. Environmental Protection Agency does not endorse or recommend commercial products, processes or services.