Top medical news headlines for the week 40

Frequent cannabis use tied to more severe epilepsy

Adults with hard-to-treat epilepsy who used cannabis most days had more than twice as many convulsive seizures per year and became resistant to antiseizure medications more quickly than nonusers, according to new research ...

Getting their steps in: Preschoolers walk 18,000 steps a day

Children ages 3 and 4 take a median of 18,542 steps a day, but their daily step counts vary widely, according to the first international reference values for daily step counts in preschool-age children, published in the journal ...

What happens in the brain when cannabis generates anxiety?

For the first time, Northwestern scientists have identified a set of neurons that play a role in generating anxiety after exposure to cannabinoid drugs, especially under stressful conditions. Cannabinoids are a class of substances ...

Are right‑brained people really more creative?

Are you logical, detail-oriented or good with numbers? You must be "left-brained." Creative, artistic and intuitive? You must be "right-brained." Personality quizzes and career advice passed down through generations have ...