The use of a drug for non medical reasons
Drugs are usually made to help a person combat diseases, etc, but if it is used for something other then it's intended purpose, or is used to, instead of helping the body but destroying it, it becomes a "drug abuse"
hope this helps
<span>Smooth muscles and cardiac muscles
are both classified as involuntary. Both muscles are continuously working which
means it does not stop even when a person is at rest. As smooth muscles surround most of the walls
of the major organs of the body, cardiac muscle however can only be found in
the heart. They are not both innervated singularly which implies that the
impulses that travels through these paths are passed from a cell to another
cell. Both are automatically controlled by endocrine and nervous systems and
produce rhythmic contractions as impulses are innervated. </span>
Answer: bad plumbing, go to plumbers school maybe not health school
Explanation:
