Restrain i know this for sure
paralysis
chemicals that remain in contact with the skin for a long time reach the nerve supply, which can result in paralysis.
Answer:
2). Stretch before and after being active
Explanation:
Skeleton muscles relay on contractions to move the bone they are attached to so it can contract and relax
Its too expensive or they feel they don't need it because they don't get sick or hurt or don't go to the doctor