Water is essential to health, but when it's not clean, it can cause serious diseases.

Questioning what health care should accomplish is a tricky, complicated thing to do.

It can be tricky to find the right doctor and avoid the bad ones.

The Centers for Disease Control and Prevention are now telling doctors to stop prescribing the addictive pain-killers for long-term pain management.

A new movement called OpenNotes proposes that doctors open their personal notes so patients can read what they have to say about their individual health.

A recent study in the American Journal of Preventative Medicine warns that sitting down can increase the risk of early death.

Dr. Jon Hallberg discusses a Harvard health study on happiness that's now back in the public eye.

A recent study in the latest edition of the New England Journal of Medicine says Zika virus "infection during pregnancy appears to be associated with grave outcomes."

When was the last time your doctor said to you, "Can we talk?" And what difference would having a conversation really make?

There are concerns about the long-term use of proton pump inhibitors, which are used to treat acid reflux and other stomach problems.