Improving Overall Health:
-pretty much any activity or sport that is done with correct form! (Proper techniques and form can prevent serious injuries.)
How it can improve Physical and Emotional Health:
-exercise is a stress relief technique, resulting in better emotional/mental health. It can improve your patience, mood, focus, and intellectual processing.
-exercise can improve physical stamina and endurance.
Blood Provides the Body's Cells with Oxygen and Removes Carbon Dioxide. Blood absorbs oxygen from air in the lungs. It transports the oxygen to cells throughout the body, and it removes waste carbon dioxide from the cells.
D would make the most money, but it's up to you! :)
Yes, to answer your question, this is health. Do something you love. Do something your passionate about. Sadness comes from a lot of things including; hormones, depression, anxiety. Hope this helps you out!