Cannabis use &#39;heightens risk of psychosis&#39;
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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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Schizophrenia can be predicted in high risk groups years before psychosis sets in, say scientists.
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Over the past several decades, a steady stream of studies has documented that people born in winter and spring have an increased risk for schizophrenia, a serious mental illness characterized by disordered thinking, hallucinations and other psychotic symptoms.
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Some people claim the plant called Cannabis sativa, also sometimes called Cannabis indica, &quot;marijuana&quot; or just &quot;pot,&quot; has medicinal value.
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VANCOUVER (CP) - A top American clinical researcher in the field of drug addiction warned Tuesday that decriminalizing marijuana could lead to increased abuse of the drug.
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People with mental disorders develop cancer at younger ages and have higher odds of later being diagnosed with certain cancers, including tumors of the brain and lung, according to a new analysis of insurance claims.
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Differences in the brain may increase the chances a person will take drugs, scientists say.
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Smoking marijuana, much like smoking tobacco, may increase a person's risk for gum disease that can lead to tooth loss, researchers said on Tuesday.
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Research suggests marijuana constricts the blood vessels, affecting supplies to the brain.
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NEW YORK  - The odds that adolescents will  smoke, drink or use marijuana may have a lot to do with their  physical development, regardless of their school grade level or  how old they are, a new study shows.
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Mental health campaigners say papers used to make hand-rolled cigarettes should carry printed warnings about the dangers of cannabis.
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It&#39;s long been known that high levels of benzene, a common industrial chemical, can increase the risk of leukemia and other blood disorders, but a new study suggests
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EXETER, England  - Cannabis-based treatments may  have longer-term benefits for multiple sclerosis patients,  scientists said on Friday.
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An ingredient in marijuana may be useful for treating brain cancers, say researchers.
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NEW YORK  - Previous research has  established a moderate relationship between marijuana abuse and  depressive disorders. Now researchers report that the  association between marijuana use and major depression probably  arises from a combination of shared genetic and environmental  vulnerabilities.
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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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A cannabis-like chemical may be important for normal pregnancy, researchers believe.