Drug overdose deaths are plummeting in the U.S. in ways never seen before. Experts worry new, toxic "synthetic" street drugs could derail the recovery.

A dementia diagnosis can be isolating, as people often retreat from activities they love.

Firms like Function Health and Oura market regular blood tests to people wanting to take their health into their own hands. The process often raises more questions for patients than it can answer.

North Carolina emergency room doctors and nurses say HBO’s drama "The Pitt" captures the chaos, the strain and the human moments that define their work.

Largely unstudied technologies, infusions and supplements are being touted by the country's wealthiest tech billionaires as a pathway to the age-old goal of living forever?

Wellness influencers tout the therapy's power for everything from rejuvenating skin and hair to boosting longevity. Devices sold for at-home use abound. We look at the evidence behind the hype.

We look at what’s in the air right now and how it impacts us. We’ll break down how air quality is measured, what’s improved over time and what challenges remain. We’ll also examine the distinct forces behind the region's intense allergy season and what it means for daily life.

Humanity's itchy little nuisance resists common pesticides and drives parents crazy. Will we ever be rid of head lice? Doctors say it's unlikely.

The science fiction blockbuster wowed audiences with its depiction of space travel and more. Here's what NASA staff and other scientists say about the basis for the amazing events of the film.

It's a global effort with a multibillion dollar price tag. Among its aims: re-greening nearly 250 million acres, planting 4,000 miles of trees, helping farmers, creating jobs, sequestering carbon.

In her new book You've Been Pooping All Wrong, Dr. Trisha Pasricha shares habits and practices to make your relationship with your solid waste as smooth as possible

The movie, now streaming on Netflix, defied current trends in Indian cinema to tell the true story of a friendship between a Muslim and a Hindu Dalit. Martin Scorsese was secretly involved.