Answer:
Alcohol
Explanation: Alcohol in moderation isn't bad but when one starts drinking heavily it can be detrimental to one's health
Answer:
"The muscles of respiration are also called the 'breathing pump muscles', they form a complex arrangement in the form of semirigid bellows around the lungs. All muscles that are attached to the human rib cage have the inherent potential to cause a breathing action. Muscles that helpful in expanding the thoracic cavity are called the inspiratory muscles because they help in inhalation, while those that compress the thoracic cavity".
Explanation:
I hope this helps!
That would be your own personal opinion bc everyone is different