Health & Science

U.S. life expectancy rose last year, hitting its highest level since the beginning of the Covid pandemic, according to a report from the Centers for Disease Control and Prevention.

Doctor explains what you need to know about what is informally referred to as “brain fog.”

Red food dye is commonly used in beverages, snacks and candies, but it’s come under scrutiny for possible links to cancer and behavioral problems in children.

Researchers attribute a rise in autism diagnoses to increased screening and changing definitions of the condition. Hundreds of studies have found childhood vaccines to be safe.

Robert F. Kennedy Jr.’s false claims linking autism to childhood vaccinations are receiving new scrutiny now that President-elect Donald Trump has selected him to lead the Department of Health and Human Services, a sprawling agency with a budget of $1.7 trillion that oversees research into both autism and vaccines.

The child experienced mild symptoms, according to the Centers for Disease Control and Control and Prevention.

A report from the U.S. surgeon general found significant disparities in smoking rates based on race, income and sexual orientation, and said smoking and secondhand smoke cause 500,000 deaths every year.

For months, many patients have struggled to get their prescription filled for the popular weight loss drugs. That frustration has led millions to turn to compounded formulas. Carolyn Johnson reports for the NBC4 News at 6 p.m. on Monday, Nov. 18, 2024. 

Robert F. Kennedy Jr. has promoted claims about vaccines that contradict the overwhelming consensus of scientists.

A new survey from Orlando Health found 39% of American adults worry about how much they will eat over the holidays, but dietitians say fears of weight gain or other negative effects are overblown.

A study from the American Association for the Study of Liver Diseases found beer drinkers usually have less healthy lifestyles than drinkers who prefer wine, liquor or a combination of alcohol types.

With the rise of telemedicine and testosterone replacement clinics opening up across the country, access to the drug has never been easier.

Dentists say fluoridated water was one of the most significant public health advances in recent memory. The incoming administration may not see it that way.

Fluoride is added to drinking water to prevent tooth decay and reduce other dental-related illnesses, according to the American Dental Association and CDC.

Dr. Bryant Lin is hoping his cancer journey can be a teaching moment for future physicians.

A clinical trial is testing whether an existing drug could benefit patients with Alzheimer’s disease, in hopes of making symptom-improving medication more accessible for people experiencing mild cognitive impairment.

For decades, when babies with congenital heart defects needed stents, doctors would modify ones meant for adults so they would fit into much smaller hearts.

Did you know that when a queen bee is born, she sings to find out if she’s the only royal in the hive? California Live correspondent Berlin meets up with Niki from Mike & Niki’s Honey Company in San Francisco to learn why honey is the bee’s knees. From its many healing properties to a delicious addition to your home-cooked...

Due to a new FDA rule, women 40 and older in every state are now receiving letters about their breast density along with their standard mammogram results.

Health officials in California are investigating a possible third human case of bird flu, the California Department of Public Health announced Saturday.