An estimated 84 million people watched Hillary Clinton and Donald Trump in their first debate Monday, according to TV ratings data from Nielsen, making it the most-watched debate ever.

A doctor who treats infertility in New York City says he has helped a couple have the first baby purposefully created with DNA from three different adults.

John Zhang of the New Hope Fertility Center in Manhattan traveled to Mexico earlier this year to perform a procedure for a couple from Jordan that enabled them to have the baby in May, according to a clinic spokesman.

In every field, there are people whose behind-the-scenes work ripples out; whose vision helps define the way we live, work or play. In fashion, Grace Coddington is one of those people.

Many people first heard of Coddington through The September Issue, the 2009 documentary about American Vogue. She's been a top editor there for nearly 30 years, directing the photo spreads that appear in the magazine. She helps choose the clothes, setting and models, and she works with the photographer to figure out how to capture it all.

Eating well has many known benefits. But a good diet may not be able to counteract all the ill effects of stress on our bodies.

A new study, published in Molecular Psychiatry, suggests stress can override the benefits of making better food choices.

A fire department battalion chief described as a "rising star" by his department was killed in an explosion in the Bronx on Tuesday morning. At least 12 other people were injured in the blast.

The U.S. government has agreed to pay a total of $492 million to 17 American Indian tribes for mismanaging natural resources and other tribal assets, according to an attorney who filed most of the suits.

The World Health Organization says 92 percent of the world's population breathes air containing pollutants exceeding WHO limits, in new research released Tuesday.

There are two "firsts" in the list of highest-paid comedians that was put out by Forbes on Tuesday: For the first time in a decade, someone other than Jerry Seinfeld tops the rankings; and a woman is in the top 10 for the first time, according to Forbes' tally.