Roughly 1.4 million fewer Americans have signed up for an Affordable Care Act plan as expiring tax breaks drive up premiums.

The largest nurses strike ever in New York City is underway as thousands of NYSNA members walk off their jobs at major hospitals.

After the ACA tax credit lapsed in December, enrollees are opting for less robust health plans or dropping coverage altogether.

The potential for a major nurses strike in New York City is growing by the minute, with major hospitals and the New York State Nurses Association failing to get a deal done before Sunday's midnight deadline.

The media superstar, who has struggled with weight for much of her life, and a Yale School of Medicine doctor team up for a book that examines the biology of obesity, offering a new way forward.

Oprah Winfrey is one of the best-known, most-admired and successful people on the planet. But for years she seemed powerless to conquer her fluctuating weight problem … until new medications, and a new attitude about her weight, gave her a breakthrough, which she describes in "Enough," a new book she has co-written with Dr. Ania Jastreboff. They talk with Jane Pauley about an individual's genetically-influenced weight range, and how to reset it. Winfrey also relates the long road she traveled since she began her TV career in Nashville, facing sexism, racism, and comments about her weight.

As millions of Americans struggle with paying for health care, doctors and health experts discuss how medical care is being eroded by insurers denying necessary tests and treatment, making it "more difficult to be healthy in the United States."

Millions of Americans are struggling with medical care – either unable to pay high premiums, burdened with high deductibles, or denied coverage for necessary tests and treatment by health insurance companies. Erin Moriarty of "48 Hours" talks with doctors and health experts about how medical care is being eroded by insurers motivated by profit. As one doctor says, insurance companies have "made it more difficult to be healthy in the United States."

A new study found potential health concerns with the drinking water on some airlines where you might order coffee or tea. The review was of airplane drinking water stored in onboard tanks, not bottled products. Of the 10 major airlines, Delta scored best, while JetBlue and American were the bottom two carriers.

New research recommends against drinking coffee or tea served by airlines, urging travelers to stick to bottled water.

FDA-approved semaglutide drug is the first GLP-1 pill for weight loss available in the U.S., according to drugmaker Novo Nordisk.

In his new wellness book, "Eat Your Ice Cream," Dr. Ezekiel Emanuel goes beyond the basics of eating, exercise and sleep, to the importance of being happy, social engagement, and recommended behaviors (like "don't be a schmuck") that can benefit longevity.