Study Raises New Questions About Fluoride Exposure During Pregnancy

A new study funded by the National Institutes of Health is raising questions about fluoride exposure during pregnancy and children's cognitive development.

"This study addresses an important gap by evaluating prenatal water fluoride and child cognition in a large U.S. sample," said lead author Katrina Simon of the Columbia University Mailm...

These Jet-Setting Jobs Carry The Highest Risk Of Radiation-Related Cancer Death In The Nation

Two jet-setting jobs carry the nation’s highest risk of radiation-related cancer death, a new study says.

Out of more than 500 U.S. occupations, flight attendants and pilots are first and second when it comes to cancer deaths caused by radiation exposure, researchers reported Aug. 17 in JAMA Internal Medicine.

Aircrew ...

Fingertip Patch Tracks Medication Levels In Parkinson's Patients

It’s tough to home in on the right dose of drugs for Parkinson’s disease patients.

Too little levodopa — the gold-standard drug for the disease — will leave patients unable to move, while too much triggers severe, uncontrollable jerking motions, researchers said.

But help could be on the way, in the form of a ...

Do Dogs Help Teens Cope With Social Stress? It Depends, Researchers Say

They say a dog is a boy’s or girl’s best friend, but that relationship isn’t always a healthy one for a teenager who struggles with social anxiety, a new study says.

Teens manage their stress in healthier ways if they see a dog as a beloved companion, researchers reported Aug. 17 in the Journal of Adolescence.

How To Protect Yourself During Wildfire Season

Wildfires are on the rise in many parts of the world, bringing with them major health threats.

As bad air days become more and more common, it’s a good idea to learn new ways to keep your lungs and body systems healthy.

Here's some advice to protect yourself and your loved ones when smoke-filled air comes to your area:

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Kindergarten Vaccine Exemptions Hit Record High, New CDC Data Shows

A record share of U.S. kindergartners started school last year without at least one required vaccine, new federal data show.

Exemptions rose to 4.2% during the 2025-2026 school year, up from 3.6% a year earlier, according to the U.S. Centers for Disease Control and Prevention (CDC). That amounts to roughly 155,000 children.

Most of t...