Michaeleen Doucleff

For decades, scientists have predicted how climate change will hurt people's health. Now an international team of researchers say they're already seeing some of the damage.

Talking to a device that talks back can be entertaining and educational for children. But psychologists say children can develop relationships with these devices that can be different than adults.

The Centers for Disease Control has revised recommendations for treating ME/CFS and now says that vigorous exercise can make symptoms worse. Patient advocates say it's a huge victory.

For decades, Zika had been relatively innocuous. In 2015, that changed. A new study unravels the mystery of what caused thousands of cases of microcephaly.

Earlier this year President Trump called for deep cuts in foreign aid. But even small cuts could be catastrophic for some aspects of global health.

For the first time, scientists have carefully analyzed all the critters in a kitchen sponge. There turns out to be a huge number. Despite recent news reports, there is something you can do about it.

Some species of bacteria in our intestines are disappearing. Can we reverse the microbial die-off? The food eaten by Tanzania's Hadza tribe could hold the answer.

Each year more than 600,000 babies die of sepsis. Researchers have found a simple way to prevent it: Feed babies probiotic bacteria that are common in kimchi, pickles and other fermented vegetables.

The technical term is diastasis recti and it affects many new moms. The growing fetus pushes apart the abdominal muscles and the separation often stays open. But science suggests this fix can work.

We invited readers to tell us how their culture helps moms become breast-feeding pros. The stories we received are so wonderful, we couldn't wait to share them. We even heard from a few dads!

The "marshmallow test" is a famous experiment for studying kids' self-control. For the first time, a psychologist gave the test to kids outside Western culture. And they crushed it.

The vast majority of pregnant women in the U.S. say they plan to breast-feed, but aren't told that many new moms worldwide find it tricky. Being mentored the first weeks after birth can help a lot.

Many American women want to breast-feed — and try to. Only about half keep it up. It's like they've lost the instinct. One researcher thinks she's figured out why and how to get the instinct back.

A majority of women say they want to breast-feed their babies. But only a small fraction reach that goal. Why is it so hard? Maybe the secrets of breast-feeding are in the past.

Rodents, primates and bats likely carry hundreds of thousands of viruses we haven't yet identified. But how do you know which ones might infect humans?

First she was shot at on the way to work. Then her house was destroyed by a bomb. That didn't deter this woman scientist.

The Zika outbreak in Florida is officially over. And cases are dropping across the Caribbean. But doctors say the risk to pregnant women there — whether residents or travelers — isn't gone.

Studies have shown that Zika can damage a fetus's brain in the third trimester. Would there also be an impact on the brain of a newborn?

You might think a monkey is making a friendly face. The monkey, however, might have a very different message in mind.

The Democratic Republic of Congo has been fighting a small Ebola outbreak since April. Now its government has given the green light to use a new Ebola vaccine.