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2
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1answer
43 views

Nicotine vs. Caffeine. Why is one more addictive than the other?

Both nicotine and caffeine are considered to be addictive substances. Why is nicotine more addictive than caffeine?
2
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0answers
43 views

Why are cats attracted to catnip?

According to wikipedia, the active substance is nepetalactone ($C_{10}H_{14}O_{2}$) which has weak sedative, antispasmodic, febrifuge, and antibacterial effects in human. Ok, but why are cats so fond ...
1
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0answers
24 views

Can Opioids Attenuate some of the symptoms of Psychosis?

Can Opioids Attenuate some of the symptoms of Psychosis? I ask because there's a dead link on the Wikipedia page http://en.wikipedia.org/wiki/Opioid_dependence#Causes that's meant to support the ...
3
votes
1answer
855 views

Can a person become addicted to tea?

Can one become addicted to tea like coffee addicts or smokers? I heard there are some common substances in tea and coffee, do they cause addiction?
5
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2answers
141 views

Why do the brains of cocaine-users shrink faster than the brains of non-cocaine users?

http://news.sciencemag.org/sciencenow/2012/04/cocaine-may-age-the-brain.html?rss=1 Cocaine-dependent individuals showed a significantly greater-than-normal age-related decline in gray matter in ...