World's biggest puzzle: 1 million pieces

Once assembled, the All of Us Research Program could provide an unprecedented picture of health and wellness in the United States.

Study: E-cig vapors laden with toxic metals

Coils that heat the liquid nitrogen may contaminate the resulting vapor with lead, chromium, manganese and nickel.

Study: Truckers at greater risk of ALS

Exposure to diesel fumes may increase a worker's odds of developing the neurodegenerative condition.

You've come a long way, baby

...Or have you? Let's take a look at women and smoking.

Patient Story

From the flu to 50 days in the ICU

After seven years, lung failure patient asks her doctors, “Am I still the sickest patient you ever had that lived?”

Sound solutions for better sleep

One of the most frequent complaints women have about midlife and menopause is trouble getting enough Zzzs. A doctor shares how to throw out the sheep for good.

Patient Story

Heart of mystery

A 3-D model helps a 10-year-old boy understand his unique anatomy. And it helps his doctors plan his treatment.

Beware 'bug bomb' foggers

These whole-house insecticides are frequently tied to severe respiratory and gastrointestinal symptoms.

Study: Nicotine in e-cigarettes might cause cancers

Findings could spur public policies to require lower nicotine levels in tobacco cigarettes and increase regulation of e-cigarettes.

Breathe easy this winter

Explore these 4 tips to help you manage your asthma during the coldest months of the year.

Do you get enough vitamin D?

If you live in the mitten state, probably not. What can you do to get the full benefits of the sunshine vitamin?

Patient Story

'They helped me dance again'

Reflexology helps a four-time cancer survivor dance at his son's wedding.