I believe it’s D. It’s not A because when you use your muscles you’re getting micro tears that repair and grow.
It is important to set goals because you will desire something higher than what you have now. It's important to share them with others so they can hold you accountable and make sure you are trying to achieve your goals.
Exposure to radiation and toxins. This is because the radiation can basically fry the sperm causing many reproductive issues in men.
“Wellness” is the answer to your question