The desire to live longer and healthier lives has spawned a growth in services and supplements. So what works best?

Before the rise of GLP-1s, obesity experts didn’t study the internal buzz that compels people to eat. Now that food noise is being switched off, they want to understand it.

A new therapy has the potential to cure hundreds of diseases — and even reverse aging.

Fatimah Shepherd’s kidneys were compromised, and pregnancy could send her into kidney failure.

His work changed how doctors understood heart attacks, heart failure and coronary artery disease, and helped lead to therapies that saved millions of lives.

South Africans are spending more on weight-loss medicine while still making room for coffee, takeaways and small rewards.

A once-robust H.I.V. treatment and prevention system, credited with saving hundreds of thousands of lives, has begun to crumble.

Calley Means remained president of a company that relied on health savings accounts last year as the Trump administration developed policies to expand them.

From the Kremlin to Silicon Valley, some of the most powerful people in the world now want something more: eternal life.

The treatment, the first of its kind, was approved by the Food and Drug Administration on Thursday. “Our baby was born deaf, and now he can hear,” said one parent.

Vaccine skeptics, ‘organic moms’ and environmental activists came together toelect President Trump. Butsome voters are disillusioned and might not turn out again.