A sunny day provides an inviting environment for outdoor activities, but the sun's UV rays present potential health risks. According to the U.S. Environmental Protection Agency, too much exposure to the sun may cause immediate problems in the form of a sunburn or long-term health problems. Long-term problems may include skin cancer, wrinkles and suppression of the immune system. Sun block creates a barrier to protect the skin from the harsh UV rays.
Choose Your Sun Block Wisely
The effectiveness of the sun block depends partially on they type you purchase. A high SPF, or sun protection factor, provides more protection for the skin. The Ohio State University Medical Center recommends of SPF of 15 or higher in a sun block that contains zinc oxide, titanium dioxide or oxybenzone. Look for a brand that guards against both UVA and UVB rays for greater effectiveness. Choose an oil- and fragrance-free sun block if you have sensitive skin.
Apply It Early
The EPA recommends applying sun block about 20 minutes before you go out into the sun. Applying the sun block before you go out allows it to work more effectively when you do head outdoors. Put on the outfit you plan to wear that day so you can cover all exposed skin with the sun block.
Apply Generously
Skimping on sun block may not protect your skin efficiently. The Ohio State University Medical Center recommends using at least 1 oz. of the sun block for an adult. The organization compares this amount to the contents of a shot glass.
Cover All Exposed Areas
The arms, legs and face are often the first to receive sun block during the application process, but you also need to cover the other exposed areas you might not consider. All parts of your neck, your feet, ears and lips may be overlooked, according to the Ohio State University Medical Center. Ask a friend to help apply the sun block to areas you cannot see.
Reapply Frequently
The initial sun block application only protects you for about two hours. Apply another generous dose of sun block every two hours. You need to reapply the sun block after profuse sweating or spending time in the water, even if the label says the sun block is waterproof.
Use Sun Block Year-Round
Sun block isn't only for the summer months and sunny days. Apply sun block whenever you are outdoors, even if it is cloudy or cold. The UV rays can still penetrate the clouds. The EPA notes that snow reflects the UV rays, which means you increase your chances of a sunburn without proper protection.
