Answer:
Physically inactive people can lose as much as 3% to 5% of their muscle mass each decade after age 30.
Explanation:
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Drugs interfere with the way neurons send, receive, and process signals via neurotransmitters. Some drugs, such as marijuana and heroin, can activate neurons because their chemical structure mimics that of a natural neurotransmitter in the body.
<h2><em>Body Fat. I'm pretty sure it's Body Fat.</em></h2>
C. Nutrients that strengthen bones and teeth, help keep blood healthy and keep the heart and other organs working properly
