Answer:
I'll click on your name and see if I can help!
The answer is: "social epidemiology" .
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" <u> Social epidemiology </u> i<span>s the study of the causes and distribution of health, disease, and impairment throughout a population."
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Answer:
C learning how to sleep better
Answer:food-borne contagion ( i think) sorry if i got wrong
Explanation: