Baby calves rely on it to build up their immune systems and gut. And now marketers are promoting it for humans. Here's what scientists say.

Wellness and longevity influencers are pushing a compound called NAD+. There's scientific interest in its potential, but researchers say the marketing claims have gotten ahead of the science.

A new study finds an extra 1,000 steps per day is linked to a decreased risk of complications after surgery. The study suggests tracking steps is one way to monitor recovery and can be empowering.

Nearly a third of Americans get less than the recommended seven hours of sleep a night. A lot of us struggle to get to bed as we power through tasks or get lost in endless scrolling. Here's help.

It's a very treatable form of cancer if caught early, yet younger adults rarely get screened. Patient advocates want more people to talk to their doctors about risk factors and number two.

The American Academy of Neurology issued guidance on using wearable data devices, like smartwatches or an Oura Ring, to track key health metrics that can help flag serious conditions.

A special day can be tinged with sorrow when your partner has dementia. But then he found the perfect gift.

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.

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.

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