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Author Question: The brain chemicals known as endorphins produce effects similar to which substance? a. vitamin ... (Read 99 times)

sammy

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The brain chemicals known as endorphins produce effects similar to which substance?
 
  a. vitamin B-1 (thiamine)
  b. substance P
 c. opiates
 d. amphetamines

Question 2

As an addiction develops, many of its effects, especially the enjoyable effects, decrease, a phenomenon known as____.
 
  a. tolerance
 b. craving
  c. withdrawal
  d. abstinence



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welcom1000

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Answer to Question 1

c

Answer to Question 2

a




sammy

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Reply 2 on: Jun 22, 2018
Wow, this really help


sarah_brady415

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Reply 3 on: Yesterday
Excellent

 

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