In a recent small study, the antidepressant effects of ketamine lasted longer when an intravenous dose was followed with computer games featuring smiling faces or words aimed at boosting self-esteem.

Researchers are launching a make-or-break study to test the conventional wisdom about what causes Alzheimer's disease.

A study finds that we are happier the more we talk with different categories of people — colleagues, family, strangers — and the more evenly our conversations are spread out among those groups.

A new study from a Dutch clinic found that 98% of transgender adolescents who received puberty suppression treatment went on to continue gender-affirming treatment.

Researchers and companies have tried over the years to automate the chore with limited success. Using a brand new method, researchers have taught a robot to fold a record 30-40 garments per hour.

More than half of these deaths occur well after the mom leaves the hospital. To save lives, mothers need more support in the "fourth trimester, that time after the baby is born," one researcher says.

The findings are a concern for Black women, researchers say, who are far more likely to report using straightening products such as relaxers.

Astronomers were stunned to find that the black hole was emitting energy, two years after it pulled apart a star that had come too close.

A dish of brain cells learned to play the 1970s video game Pong. The research could help computers become more intelligent

Colon cancer specialists worry that results of a study published this week in the New England Journal of Medicine could be misconstrued, and keep patients from getting lifesaving cancer screening.

Scientists have devised a new model for studying disorders like autism spectrum disorder and ADHD. It uses clusters of human brain cells grown inside the brain of a rat.

New research out of the British Antarctic Survey found thousands of underground channels left by ice age glacial melt. The findings could improve the accuracy of modern-day models of sea level rise.

Scientists have made a drug based on LSD that seems to fight depression without producing a psychedelic experience.

This year's Nobel Prize in chemistry has been awarded in equal parts to Carolyn R. Bertozzi, Morten Meldal and K. Barry Sharpless for developing way of "snapping molecules together."

This year's Nobel Prize in physics has been awarded to research on how light and matter act on an atomic scale.