Cannabis link to psychosis depends on age of first use
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Half of regular smokers of cannabis who are psychologically vulnerable to its effects may end up needing treatment for psychosis, scientists said yesterday.
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A mental health charity is calling for a government inquiry into the link between cannabis and mental illness.
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Even small amounts of the illegal  drug ecstasy can be harmful to the brains of first time users, researchers say.
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[India News]: London, Oct 22 : A new study published in bmj.com has revealed that children of older fathers are more likely to develop schizophrenia in later life.
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Differences in the brain may increase the chances a person will take drugs, scientists say.
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OTTAWA (CP) - A major new study suggests marijuana use in Canada has doubled over the last decade. The Canadian Addiction Survey reports that 14 per cent of respondents used cannabis in the last year, up from 7.4 per cent in 1994.
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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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Two in five 15-year-olds has in the UK has tried cannabis, which is more than anywhere else in Europe, figures show. About one in 10 of this age group have smoked pot at least 40 times in the last year, says
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Cannabis-based treatments may have longer-term benefits for multiple sclerosis patients, scientists said on Friday.
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Youngsters who begin puberty at an early age are more likely to experiment with and abuse alcohol, tobacco and marijuana than kids who start puberty at a later age, says an Australian study in the September issue of the journal Pediatrics.
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MONTREAL (CP) - A faulty gene may lead some young teenage smokers to be even more susceptible to years of nicotine dependency, a new study suggests.
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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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A mental health charity calls for a government inquiry into the link between cannabis and mental illness.
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Teenagers and young adults who  frequently use cannabis are increasing their risk of suffering  from psychotic symptoms such as bizarre behavior and delusions  later in life, Dutch scientists said on Wednesday.
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Young people are increasingly abusing a drug found in nonprescription cough medicines that can produce hallucinogenic effects, but at a risk to their well-being, researchers said on Monday.
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NEW YORK  - Five key factors can help predict whether at-risk young people will go on to develop schizophrenia, researchers have found.
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Boys who were repeatedly exposed to cocaine while in their mother's womb are more likely than girls or non-exposed children to be hyperactive or have other problem behaviors at six or seven years of age, new study findings show.