Mounting research points to health harms from cannabis, THC and CBD use during pregnancy, adolescence and other periods of rapid development

Cannabis is a widely used psychoactive drug worldwide, and its popularity is growing: The U.S. market for recreational cannabis sales could surpass US$72 billion by 2023. As of early 2023,…

Increases in opioid overdoses in Pennsylvania varied by county during the COVID-19 pandemic

The Research Brief is a short take about interesting academic work. The big idea The COVID-19 pandemic intensified the opioid epidemic, according to our new research, which finds that opioid…

Why it’s hard for the US to cut or even control Medicare spending

President Joe Biden’s 2024 proposed budget includes plans to shore up the finances of Medicare, the federal health insurance program that covers Americans who are 65 and up and some…

Depression too often gets deemed ‘hard to treat’ when medication falls short

A plumber who shows up to fix a leaking toilet with a single tool is not likely to succeed. The same is true if a mental health professional offers only…

Vikings brought animals to England as early as the year 873

Vikings brought horses and dogs to the British Isles from Scandinavia, a new study suggests. A chemical analysis of bone fragments from a cemetery in England provides the first solid…

The deadly VEXAS syndrome is more common than doctors thought

A mysterious new disease may be to blame for severe, unexplained inflammation in older men. Now, researchers have their first good look at who the disease strikes, and how often.…

Mysterious marks on Ice Age cave art may have been a form of record keeping

As far back as roughly 25,000 years ago, Ice Age hunter-gatherers may have jotted down markings to communicate information about the behavior of their prey, a new study finds. These…

Procrastination may harm your health. Here’s what you can do

The worst procrastinators probably won’t be able to read this story. It’ll remind them of what they’re trying to avoid, psychologist Piers Steel says. Maybe they’re dragging their feet going…

Too much of this bacteria in the nose may worsen allergy symptoms

A type of bacteria that’s overabundant in the nasal passages of people with hay fever may worsen symptoms. Targeting that bacteria may provide a way to rein in ever-running noses.…

Here’s what you need to know about COVID’s XBB.1.5 ‘Kraken’ variant

The omicron variant’s family tree has grown substantially over the last year. The brood now encompasses a subvariant soup with alphanumeric names such as BA.2, BA.5 and BF.7. The U.S.…