It's due to the increased production of Melanin that helps block UV light
Answer:
keep their heart and lungs strong and healthy,
become more flexible,
develop strong bones,
keep a healthy body weight,
lower the risk of several diseases and health problems,
improve their mood and self-esteem, and
do better in school
Hope this helped have an amazing day!
This looks like there should be a list but i had this question in health before and the answer is virus cultureing.