Friday 15 February 2013

How do stimulants affect the brain and body?


How do stimulants affect
the brain and body?

Stimulants, such as
dextroamphetamine (Dexedrine
and Adderall) and methylphenidate
(Ritalin and Concerta), act in
the brain similarly to a family
of key brain neurotransmitters
called monoamines, which include
norepinephrine and dopamine.
Stimulants enhance the effects
of these chemicals in the brain.
The associated increase in
dopamine can induce a feeling
of euphoria when stimulants are
taken nonmedically. Stimulants
also increase blood pressure and
heart rate, constrict blood vessels,
increase blood glucose, and open
up breathing passages.

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