Sunburn is a sign of short-term overexposure to ultraviolet (UV) light, while premature aging and skin cancer are long-term effects. Unprotected exposure to UV radiation can cause serious health problems, including cancer. UVA and UVB rays differ in how they affect the skin, but both are harmful. UVA and UVB rays damage the DNA of skin cells and cause genetic defects or mutations that can lead to skin cancer and premature aging.
UV rays can also cause eye damage, such as cataracts and eyelid cancer. UVB rays emit slightly more energy than UVA rays and are responsible for sunburn and most UV-related cancers. The sun provides vitamin D to the body through ultraviolet radiation, but too much sun exposure can lead to wrinkles and skin cancer. You can protect your skin from excessive exposure to UV rays by using sunscreen when you go outside. Skin cancer caused by UV radiation is treatable and has a good prognosis if detected early. Ultraviolet radiation from the sun is the main cause of skin cancer, but UV light from tanning beds is just as harmful.
But did you know that ultraviolet (UV) rays can also damage your eyes? Here are some frequently asked questions and answers about UV light and how to protect your eyes from the sun. In the electromagnetic spectrum, UV light has shorter wavelengths than visible light, so the eyes can't see UV rays, but the skin can feel them. To protect yourself from the dangers of UV light exposure, it's important to take certain precautions. Wearing sunscreen with an SPF of at least 30 when you go outside is essential for protecting your skin from UV radiation. You should also wear sunglasses that block 99-100% of UVA and UVB rays.
If you plan on spending a lot of time outdoors, wear a wide-brimmed hat to protect your face and eyes from direct sunlight. It's also important to be aware of the time of day when UV radiation is strongest. The sun's rays are strongest between 10am and 4pm, so it's best to limit your outdoor activities during these hours. If you must be outside during these times, make sure to wear protective clothing and sunscreen.
