What important thing to understand about fitness? What I already know about
fitness?

Please helep

There are many benefits to being fit.

Explanation:

Fitness isn't just about the physical part but also the mental wellbeing. For example the physical involves exercising, not just to lose weight or look more beautiful (remember everyone has unique looks) but to live longer, reduce the rick of diseases such as heart diseases and to enhance our bodies. Whereas the mental has to do with the brain, how you train the brain e.g logic puzzles, riddles and so on.

it's all four options.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.