What are UV levels and how can you protect yourself?

Here is a 172-word summary of the article: UV (ultraviolet) radiation from the sun can be harmful to human health. Exposure to high UV levels can lead to sunburns, skin damage, and increased risk of skin cancer. UV levels are measured on a scale from 1 to 11+, with higher numbers indicating greater danger. On days when UV levels are moderate (3-5) or high (6-7), it's important to take precautions. This includes seeking shade, wearing protective clothing, and applying sunscreen with an SPF of 30 or higher. It's also best to avoid being outdoors during the peak UV hours of 10 AM to 4 PM. For extremely high UV levels (8+), additional measures are recommended, such as wearing a wide-brimmed hat and sunglasses. People with fair skin, children, and those with certain medical conditions are at greater risk and should be especially vigilant about sun protection. Monitoring daily UV forecasts and taking appropriate safety steps can help people enjoy the outdoors while minimizing the health risks of UV exposure.