Correct answer is D. Harry Harlow. Just took the test.
<span>Stiff and tight muscles can constrict nerves in the back. When these nerves are constricted, it can result in sensations of pain throughout the back, especially the lower back.
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Rest. If you had a pinched nerve, then you would stretch.
Answer:
C
Explanation:
Opioids cause a high. Highs create a surplus in dopamine, also known as the happiness chemical. Repetitive surges of this happiness chemical from a drug such as opioids can become addictive.