Do plants feel pain?
ASK AN EXPERT: What need do plants have for drugs that make you pass out?
View ArticleExperts warn of cannabis cancer 'epidemic'
Smoking a joint is equivalent to 20 cigarettes in terms of lung cancer risk, say researchers, warning of an "epidemic" of lung cancers linked to cannabis.
View ArticleHeavy pot smokers shrinking their brains
Australian researchers have found that long-term heavy use of marijuana may cause parts of the brain to shrink.
View ArticleOldest marijuana stash found
A kilogram of green plant material found in a 2700-year-old grave in the Gobi Desert has just been identified as the world's oldest marijuana stash, say researchers.
View ArticleDoubt cast on cannabis, schizophrenia link
A new study in the UK has cast doubt on the supposed link between cannabis use and schizophrenia.
View ArticleTrain your brain and 3D TVs
DR KARL ON TRIPLE J: Can you increase your memory by training your brain? Why do you need glasses to watch 3D TVs? Are our eyeballs fully grown when we are born?
View ArticleShooting star sounds and spider web sparks
DR KARL ON TRIPLE J: Can you hear a shooting star? Do spider webs conduct electricity? Does the old wives' tale of deaths coming in threes have any scientific basis?
View ArticleCannabis hastens onset of psychosis
MENTAL TRIGGER: A new Australian study has found strong evidence that using cannabis can hasten the onset of psychotic illnesses such as schizophrenia.
View ArticleCannabis use and psychosis, with Dr Matthew Large
DR KARL ON TRIPLEJ: In a special triplej listener talkback, Zan Rowe and Dr Karl discuss the link between mental illness and marijuana use with psychiatrist Dr Matthew Large, from the University of New...
View ArticleSmoking dope doubles accident risk
DOPEY DRIVERS: Smoking marijuana a couple of hours before you drive almost doubles your chances of having a serious car crash, say Canadian researchers.
View ArticleCannabis fails to slow progress of MS
MINIMAL EFFECT: Cannabis capsules failed to slow the progression of multiple sclerosis in a large British study.
View ArticleIsraelis develop 'highless' marijuana
Israeli researchers have developed a medicinal marijuana that can ease the symptoms of some ailments without making patients "high".
View ArticleTeen cannabis use linked to lower-IQ adults
TEEN CANNABIS USE: Teenagers who become dependent on cannabis may pay for it in adulthood with a significantly lower IQ, reveals a long-term New Zealand study.
View ArticleCannabis, IQ link more than socioeconomics
CANNABIS QUESTION: Scientists have defended their study linking cannabis and a drop in IQ against claims that socio-economic factors are to blame.
View ArticleExercise may cause you to fail drug test
REBOUND EFFECT: If you smoke cannabis and then exercise the next day, be warned - you could fail a random drug test.
View ArticleMarijuana may cause heart problems in young adults
HEART OF THE MATTER: Young adults who smoke marijuana may be at risk for serious or even fatal heart problems.
View ArticleMedical marijuana may help some, but not all symptoms
MIXED RESULTS: Medical marijuana shows some effectiveness in helping treat chronic pain but there is less evidence of its success in warding off nausea or helping ill patients gain weight, a large...
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