For attaining and maintaining mental and emotional health you should get regular exercise and eat nutritious food because exercise relieves stress. Exercise<span> and other physical activity produce endorphin—chemicals in the brain that act as natural painkillers—and also improve the ability to sleep, which in turn </span>reduces stress<span>. </span>
So you won't sprain any muscles or hurt yourself.
C. Sensitivity
because this isn't a constant thing, so it isn't a. it isn't b. and it isn't d.
At SPF 23 the sunscreen start to interfere with vitamin D.