Autism spectrum disorders

Cannabis use in pregnancy linked to a greater risk of autism

In the largest study of its kind, Ottawa researchers found that children whose mothers reported using cannabis during pregnancy were at greater risk of autism. The incidence of autism was 4 per 1000 person-years among children ...

Psychology & Psychiatry

Marijuana concentrates spike THC levels but don't boost impairment

Smoking high-potency marijuana concentrates boosts blood levels of THC more than twice as much as smoking conventional weed, but it doesn't necessarily get you higher, according to a new study of regular users published today ...

Obstetrics & gynaecology

Mom's marijuana winds up in breast milk

(HealthDay)—Breast-feeding has known benefits for both baby and mom, but if a new mom also smokes marijuana, does the drug turn up in her breast milk?

Psychology & Psychiatry

Scientists show brain's own opioids involved in musical pleasure

The same brain-chemical system that mediates feelings of pleasure from sex, recreational drugs, and food is also critical to experiencing musical pleasure, according to a study by McGill University researchers published today ...

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