Health & Science

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.

Public health officials Thursday reported a marked increase in the number of pertussis — or whooping cough — cases this year over recent years. NBC 7’s Nicole Gomez reports.

Public health officials Thursday reported a marked increase in the number of pertussis — or whooping cough — cases this year over recent years.

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.

San Diego County held the first of several flu vaccine clinics in El Cajon, hoping to prevent the spread of what can become a deadly disease. NBC 7’s Shelby Bremer reports.

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.

County health officials warned members of and visitors to a La Jolla church that they may have been exposed to tuberculosis.

San Diego County Thursday confirmed the first case of West Nile Virus in a human this year, in a 71-year-old man who became infected while traveling.

County heath officials warned that current or former residents, employees, and visitors of a La Jolla nursing home may have been exposed to tuberculosis.

Commonly referred to as “forever chemicals,” PFAS are found in many everyday products and even inside our bodies. So what are they?

Research suggests that concussions from football can raise the risk of Parkinson’s and other neurodegenerative diseases.