Well

Contrary to expectation, a major study found that weed use among minors was lower in states where the drug was legal.

In Canada, cannabis poisonings rose sharply among people 65 and older after the country legalized the drug, a new study found.

A review of a limited number of cases of unresponsive patients with severe traumatic brain injuries raised questions about a custom of making a decision within 72 hours.

In humans, the energetic cost of pregnancy is about 50,000 dietary calories — far higher than previously believed, a new study found.

A deadlier version of the infectious disease is ravaging the Democratic Republic of Congo, while the type that caused a 2022 outbreak among gay and bisexual men is regaining strength.

A New York Times Magazine article captured the final working days of seven Americans who expressed joy, fear and anxiety about the next chapter of their lives.

Congenital syphilis has risen significantly in the United States. The Times would like to talk to women who experienced the condition when pregnant and learn how they dealt with it.

And they’re increasingly common. Here’s what to know about the shared risk factors for these diseases.

Preliminary numbers show a nearly 4 percent decrease in deaths from opioids, largely fentanyl, but a rise in deaths from meth and cocaine.

Why it’s so hard to know what to say when the people we’re closest to need us most.