A woman’s suicide risk may be influenced by the suicidal intention of her female first degree relatives, with sex specific effects of a shared familial environment and possibly other social factors having a key role, finds a large population study published in the online journal BMJ Mental Health. While genetic factors strongly influence a person’s risk of suicide, they don’t fully explain the observed sex differences in suicidal behaviours, whereby males die by suicide more often than females, but females attempt suicide around twice as often as males, say the researchers.

Suicide in autistic people originates in the inequalities they face across their lives, starting in childhood, and spanning education to employment, and health and social care, a new study by a team at Cambridge and Bournemouth Universities has found.

ChatGPT Health, a widely used consumer artificial intelligence (AI) tool that provides health guidance directly to the public—including advice about how urgently to seek medical care—may fail to direct users appropriately to emergency care in a significant number of serious cases, according to researchers at the Icahn School of Medicine at Mount Sinai. The study, fast-tracked in the February 23, 2026 online issue of Nature Medicine [https://doi.org/10.1038/s41591-026-04297-7], is the first independent safety evaluation of the large language model (LLM)-based tool since its January 2026 launch. It also identified serious concerns with the tool’s suicide-crisis safeguards.

A new study analyzing global Google Trends data from January 2004 to August 2025 finds that online search interest in “crisis hotline” has increased sharply in recent years and tends to rise in the same months as searches about “suicide.” The findings highlight how digital help-seeking signals may provide timely insight into population distress and demand for crisis resources.