Dr. Sanjay Gupta looks into what researchers are doing to combat a flurry of vaping-related illnesses. 

Vaping causes severe illness in otherwise healthy young adults and teenagers. It causes a life-threatening, life-shortening and sometimes deadly lung toxicity and injury — with apparently irreversible damage that cannot be cured

It’s hard to find anyone who hasn’t been touched by cancer. People who haven’t had cancer themselves will likely have a close friend or family member who has been diagnosed with the disease.

"Before the stroke, Ted was all business. Very serious. Since he’s recovered, he’s got such a sense of humor. He’s come almost 180 degrees now. He’s so much funnier, and all his humor—his dry sense of humor—has come out. It never came out before the stroke."

Strides in medicine have contributed to a dramatic increase in life expectancy over the last century.

There’s a connection between post-traumatic stress disorder and the onset of mild cognitive impairment in 9/11 responders who were at the World Trade Center, a new study of 1,800 workers shows.

A test called CT lung cancer screening could save the lives of tens of thousands of American smokers and former smokers every year, but only only 4% of those eligible are getting it.

Falling asleep is a bit like flicking off a light switch. One moment we are awake, but then the switch is flicked and we fall asleep.

Physicians often fail to discuss healthy lifestyle changes with cancer survivors, according to a new study.

Advanced brain imaging reveals how exposure in the womb to organophosphates changes brain activity in teenagers, a new study shows.

Married people are less likely to experience dementia as they age, according to new research.

African-Americans with severe depression are more likely to be misdiagnosed as having schizophrenia, according to a new study.

The idea of seeing a loved one decline and lose their ability to recall their most treasured memories is devastating.

Viruses are mostly known for their aggressive and infectious nature. It’s true, most viruses have a pathogenic relationship with their hosts – meaning they cause diseases ranging from a mild cold to serious conditions.

Many pregnant women find themselves waking up in the middle of night to go the bathroom (for the third time) or struggling to find a comfortable sleep position.

Fainting, also known as syncope, is the sudden loss of consciousness. In most cases, fainting is not dangerous — unless it is complicated by a fall or other injury — and the person recovers quickly.

Despite risks and no clear benefits, doctors are increasingly likely to recommend antihistamines for children under the age of 12 who have a cold, according to a new study.

Researchers have sequenced the genome of an animal that carries the bacteria that cause Lyme disease. It’s not a tick, but the white-footed mouse.

Intelligence and education may offer a cognitive “head start” that could keep the minds of people with Alzheimer’s functioning better temporarily, research finds.

Do we have to "put reality on the back burner" to have fun? That's what it seems like. After all, with all the problems in the world and all the stress in our lives, escaping reality seems to be required. Our current life circumstance is putting pressure on us to...

Scientists might have found an early detection method for some forms of dementia, according to new research.

Concussion is a temporary disturbance in brain function following an impact to the head. It can also occur after a blow to the body, if the force is transmitted to the head.

The adrenal glands are responsible for our “fight or flight” response to stress. When stress is prolonged and the adrenals are forced to work overtime, they can become exhausted, leading to what is commonly called adrenal fatigue or adrenal weakness.