Cannabis' side-effects 'common'
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Half of young people using cannabis experience nasty side effects including paranoia and blackouts, a UK survey suggests.
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Scientists figure out why too much marijuana sometimes causes feelings of paranoia. It involves the geography of the brain.
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A cannabis-like chemical may be important for normal pregnancy, researchers believe.
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Inhaled cannabis smoke has significantly more toxins than tobacco, a study suggests.
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Smoking and drinking coffee act together to have a harmful effect on arteries and blood flow, say researchers.
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A âpoisonous cocktailâ of many drugs can interact in dangerous ways and cause side effects that can be far worse than the diseases they are treating.
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Frequent cannabis use during adolescence and young adulthood raises the risk of psychotic symptoms later in life, research suggests.
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Smoking a joint is equivalent to 20 cigarettes in terms of lung cancer risk, scientists in New Zealand have found, as they warned of an "epidemic" of lung cancers linked to cannabis.
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A big UK study of cannabis-based drugs has shown evidence for a long-term benefit in easing multiple sclerosis symptoms, scientists say.
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NEW YORK  - Even among relatively young women with early-stage breast cancer, the side effects of therapy can vary by age, according to a new study.
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A synthetic version of the active ingredient in marijuana, a legal treatment for nausea in cancer patients undergoing chemotherapy, also helps symptoms like pain, anxiety and depression, according to research presented on Friday.
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Even among relatively young  women with early-stage breast cancer, the side effects of  therapy can vary by age, according to a new study.
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Using marijuana in adolescence and early adulthood can cause psychotic symptoms later in life, a new study suggests. The risk of developing these symptoms is âmoderateâ, say researchers, though is higher in people with a pre-disposition to psychosis.
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NEW YORK  - Pot smokers may experience pathological changes in their lungs decades earlier than such changes usually occur in cigarette smokers, a small study of 10 patients shows.
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A follow-up study has revealed that cannabis may help loosen the stiff and spastic muscles of multiple sclerosis sufferers, besides uplifting their mood.
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AMSTERDAM - Youths who frequently use cannabis before the age of 16 face a much greater risk of psychotic symptoms later in life than those who use the drug at a later age, Dutch research indicated Wednesday.
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Heavy cannabis use may raise the risk of chronic lung disease more than smoking, two studies suggest.