Drug Question?

Addictive drugs, such as alcohol, cocaine, heroin, nicotine, and amphetamines share a common effect on the brain. What is that effect?

A) They all activate endorphin-producing neurons, producing a surge of endorphins.
B) They all increase the number of dopamine receptors in the brain's reward system.
C) They all activate dopamine-producing neurons, producing a surge of dopamine.
D)They all decrease activity in the frontal lobes while increasing activity in lower brain regions.

I believe the answer is C.

I think your answer is C but the rotten part is that in a short time, dopamine receptors are blocked by spent drug molecules and very little drug gets into the system - hence tolerance for a drug and a decrease of effect.

none? A and B are hinting at something, which is that they block the endorphins from leaving. Aka, when you get happy, you get happier than you normally do

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