Three ways to protect oneself from the sun is;
1. Wearing sunscreen protection
2. Wearing sunglasses, long sleeves, and a hat
3. Getting outdoors before 10 am and after 4 pm when the sun rays are least strong
When sun rays hit the skin, a cascade of biochemical pathways is significant in the uptake of vitamin D from the gut. Vitamin D is important in the absorption of calcium and minerals into bone and making them strong. This prevents diseases such as rickets.
Because depending on what you are doing you want people too listen too you
Schools encourage children like youths and adults to take part in the sports by conducting physical education programs for two days in a week, by counducting a sports day all day long, by counducting sports camp and camp fire on holidays. Hope this answer works,!M!!!!?,M!