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Author Question: The brain chemicals known as endorphins produce effects similar to which substance? a. vitamin ... (Read 74 times)

sammy

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on: Jun 22, 2018
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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Reply #1 on: Jun 22, 2018
Answer to Question 1

c

Answer to Question 2

a


sammy

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Reply 2 on: Jun 22, 2018
:D TYSM

xiazhe

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Reply 3 on: Yesterday
Excellent

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