Scientists find gender-distinct circuit for depression

Depression affects women nearly twice as much as men, but unraveling the brain's blueprint that regulates this behavior, let alone identifying specific molecular differences between sexes, has proven difficult. Researchers, however, have found and flipped a switch in the brain, revealing a single circuit in mice that activates during stress and is controlled by testosterone.

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Siblings of problem gamblers also impulsive, prone to risk-taking

Biological siblings of people with gambling disorder also display markers of increased impulsivity and risk-taking, according to a new psychology study. The findings suggest people with gambling disorder — a psychiatric term for serious gambling problems — may have pre-existing genetic vulnerabilities to the illness.

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Important questions on how mental illness is currently diagnosed

This research raises questions as to whether current diagnoses accurately reflect the underlying neurobiology of mental illness. The findings, just published in the leading peer-reviewed medical journal, JAMA Psychiatry, highlight the need for more individualised approaches to defining mental illness.

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Children bullied by friends and siblings are more likely to think about suicide in their early 20s

Depression, self-harm and suicidal ideation are more prominent in adults in their early twenties if they were bullied at home and at school, a study has found. Researchers stress that intervention is needed to educate people in bullying to reduce it.

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One in three young adults receive medication for opioid use disorder after overdose

A new study found that one in three young adults receive medication for opioid use disorder within 12 months of a non-fatal opioid overdose. The study shows which medications — buprenorphine, methadone or naltrexone — are being taken, and how long after the overdose they receive the treatment.

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