FDA pushes back deadline again to ban formaldehyde in hair products

Chemical hair straighteners or "relaxers" are applied to hair to make it less frizzy or straighter. But most of these products release formaldehyde gas into the air when heated.

Deadly listeria outbreak linked to deli meat: Here's what to know

The CDC reported last week that two people died and at least 28 others were hospitalized across 12 states because of a listeria outbreak connected to deli meat.

Pig hearts and kidneys: Barns may be future of organ transplantation

Some of the world's cleanest pigs are being raised in the Virginia mountains to supply kidneys and hearts for animal-to-human organ transplants.

Biden tests positive for COVID-19 with mild symptoms, will self isolate

President Joe Biden has tested positive for COVID-19, as announced during the UnidosUS annual conference via the White House's YouTube channel.

Dr. Ruth, pioneering sex therapist, dies at 96

Dr. Ruth became a pop icon, media star and best-selling author through her frank talk about once-taboo topics. Here is a look back at her career.

3 Colorado poultry workers presumed to have bird flu

Three people who had direct contact with infected animals in Colorado are presumed to have contracted bird flu.

Medicines that don't mix well with extreme heat: What to know

Learn how extreme heat can worsen the side effects of common medications and get advice on proper storage and handling.

Lupus: What to know about the autoimmune disease

Lupus has no cure and the exact cause is unknown, but in a recent breakthrough study, scientists believe they may have found a primary cause of the complex autoimmune disease.

Saharan dust: Bay Area starting to see relief from potential health effects

Particles of Saharan dust cloud rolled into Tampa Bay this week, coming all the way from northern Africa. On Friday, most of it had dissipated from the Tampa Bay area, but it can cause air quality issues and health effects when it's in town.

These are the most and least stressed cities in America, survey finds

Stress can be overwhelming, and people living in these cities tend to deal with it more than others, according to a recent survey.

Tampons can contain toxic metals like lead and arsenic, study finds

Researchers found various concentrations of 16 types of metals, including toxic metals lead and arsenic, across all tampons they tested in a new study. Here's what else they found.

Human plague case confirmed in Colorado, health officials warn

A human case of the plague has been confirmed in Pueblo County, Colorado, about 100 miles south of Denver, with health officials urging precautions for both people and pets.