Mayor Rahm Emanuel on Wednesday announced initiatives to reassure residents that Chicago's water is safe and lead-free.

The Zika virus has been shown to cause microcephaly and other fetal brain abnormalities. We talk with a local woman, pregnant with her first child, who has been dealing with the terrifying possibility that she and her unborn child may have been exposed to the virus.

Fill up your water bottle, grab a yoga mat and head to Millennium Park, where free summer workout classes begin in June. Get the full schedule.

Delays in rape kit testing and strained law enforcement resources nationwide mean that victims of sexual assault may face long waits for their attackers to face prosecution. 

When it comes to physical education, a new report shows many states aren’t measuring up to national recommendations, including Illinois. Only Oregon and the District of Columbia meet national recommendations for weekly time in physical education at both the elementary and middle school levels, according to the report. 

The disaster in Flint has spotlighted the dangers and adverse health outcomes of lead seeping into communities’ drinking water. Elizabeth Brackett reports on the lead pipes carrying water into Chicago and suburban homes. 

Winter’s (mostly) behind us and we’re ready to grow! It might not quite feel like it yet, but spring is here and it’s time to head back to the garden. The Organic Gardener Jeanne Nolan joins us to prepare WTTW’s organic garden for a fruitful growing season.

A groundbreaking study partially conducted at Lurie Children’s Hospital of Chicago found that a marijuana extract greatly reduced severe seizures in some children.

Rising rates of addiction to heroin and prescription drugs have been making headlines across the country. Find out what the latest science is telling us about the nature of addiction.

Americans are constantly connected and staring at digital screens—be they cellphones, tablets, computers or TVs. Many times, multiple devices are being used at once. This constant exposure is taking a toll: more than half of Americans report feeling digital eyestrain—discomfort caused from the use of digital devices. When more than one device is used 75 percent report discomfort.

Here’s another reason to consider giving your cellphone a rest: Compulsively checking such devices as a way to cope with uncomfortable situations has been linked to anxiety and depression in college-age students.

“People need to think of adequate sleep as an important aspect of maintaining good health," said Erin Hanlon, Ph.D., lead author of a new University of Chicago study linking insufficient sleep with increased consumption of snacks and high-energy, high-fat foods.

The city on Monday morning confirmed the first case of Zika virus. The patient, who was identified as a woman in her 30s, visited Presence Saint Joseph Hospital after returning from a trip to Columbia with symptoms consistent with the virus.

The state of Illinois doesn’t track the number of pharmacies that mix, combine or alter the ingredients of a drug or require those that perform sterile compounding to report serious adverse events, according to a new report by Pew Charitable Trusts.

There's a new way to measure age that might prove helpful in assessing an individual's risk of developing cancer, according to a recent Northwestern University study. Learn about epigenetic age and how it can impact your health.