In this visual guide, certified car seat experts walk through common installation mistakes and how to fix them. Learn what a secure car seat base and a tightly fastened tether look like and more.

The Food and Drug Administration aims to evaluate treatments for rare diseases based on plausible evidence that they would work — without requiring a clinical trial first.

Researchers followed more than 400,000 teens until they were adults. It found that those who used marijuana were more likely to develop serious mental illness, as well as depression and anxiety.

Researchers followed more than 400,000 teens until they were adults. It found that those who used marijuana were more likely to develop serious mental illness, as well as depression and anxiety.

Junot Díaz's The Brief Wondrous Life of Oscar Wao was removed from an English class at the public school. PEN America says it's part of a trend of scrubbing literature dealing with uncomfortable topics.

In his confirmation hearings, Robert F. Kennedy Jr. told U.S. senators that he would not cut funding for vaccine research or change the nation's official vaccine recommendations. He did both.

A patient who came to regret the top surgery she got as a teen won a $2 million malpractice suit. Then, the American Society of Plastic Surgeons clarified its position that surgery is not recommended for transgender minors.

The American Society of Plastic Surgeons says transgender youth should wait until age 19 to have any surgeries. Surgery is already rarely performed for transgender young people.

Cutting back on ready-to-eat meals won't be easy, and whole milk may make a comeback. One thing that's certain: It'll be a while before the new guidelines trickle down to schools.

There's federal money for local schools to test their water for lead, which can be dangerous for kids. Many school systems opt not to test their faucets, even if it's free.