While fewer teens are using traditional cigarettes, more are turning to e-cigarettes. The trend “sets youth tobacco control programs backward more than 10 years,” said researcher Scott Hays.

Cannabidiol, or CBD oil, is increasingly being used to treat a range of ailments, from basic pain to rheumatoid arthritis to, in one Schaumburg child’s case, epilepsy.

Despite documented benefits of breastfeeding, only about half of American mothers breastfeed their infants through the first six months of their life. A new study seeks to find out why. 

A 52-year-old man was pronounced dead Saturday morning about 10 minutes after he was discovered on the city's far South Side.

The city acknowledges elevated levels of lead in some homes. How concerned should Chicagoans be about the safety of their tap water?

A new study finds an online program that teaches teens coping skills is effective at reducing depressive symptoms, especially among those with more severe symptoms.

City officials were aware of data that showed elevated lead levels in the water of homes that had recently had water meters installed, according to a 2013 study by the city’s Water Department and the U.S. EPA.

The ongoing probe into harmful levels of brain-damaging manganese on Chicago’s Southeast Side has turned up another, more familiar neurotoxin: lead.

More than 1 million Americans live with brain shunts and the constant threat of their failure, which can be fatal. A new, noninvasive skin sensor can detect whether a shunt is working in minutes.

The mayor’s office seeks to downplay a just-released study that found high levels of lead in nearly 20 percent of city homes that were tested.

Caring for patients is a vital part of the medical school experience. Armed with knowledge and backpacks full of supplies, a group of students is taking its skills to the streets of Chicago.

Las Vegas residents donated nearly 800 units of blood after last year’s mass shooting, but new research shows that many of those donations weren’t needed – and some even went to waste.

Insurance shoppers likely will have several choices for individual health coverage this fall. The bad news? There's no guarantee they will cover certain doctors or prescriptions.

The donation from Chicago philanthropists Robert and Emily King will increase clinical trials at the hospital and create a fund for nursing education. 

A gene associated with the learning disorder dyslexia may make some athletes less susceptible to concussions, according to a new study by Northwestern Medicine and Penn State University.

A Bensenville-based home renovation company has agreed to pay nearly $53,000 for alleged violations of federal laws designed to protect against exposure to lead-based paint.