Some pregnant women are trying 'free births.' Doctors are worried.

The red flags that may be hiding in your poop

Biologists use cutting-edge tech to help save Oregon’s threatened species

Why scientists want to build a cell from scratch

Engaging with the arts can slow biological aging, study shows

East Africa redefines marathon limits as Sabastian Sawe leads historic charge
Opinion: A lesson in humanity at the Boston Marathon
Photos: Scenes from the 130th Boston Marathon
Boston Marathon sees rare repeat wins for Korir and Lokedi
John Korir of Kenya wins the professional men's division of the Boston Marathon

Scientists watch sperm whales work as a team to assist a birth
We saved gray whales from extinction. Why are so many dying again?

This form of mental exercise may cut dementia risk for decades
Top off your coffee: Study finds moderate caffeine intake may reduce dementia risk
How to have a healthy relationship with caffeine
This behavior can be a turning point for families caring for a dementia patient
Memory cafes offer camaraderie and fun for people with dementia — and their caregivers

In a world built for sitting, here's how to stay active — even when stuck inside

ADHD drugs may work indirectly to boost attention
Adults with ADHD live shorter lives than those without a diagnosis, a new study finds

What's behind the wellness claims for the synthetic dye methylene blue?
Can collagen supplements improve your skin? Here's what the research shows
How apple cider vinegar cured everything — until it didn't
Are creatine supplements all that they're pumped up to be?
Is it the magnesium or the massage? The facts about magnesium lotion for sleep

The closest thing to a cure for allergies

Does one drink make you dizzy? Why alcohol hits us harder as we age

To optimize health, sync your habits with your body clock. Here's how

Here's What Skipping Breakfast Does to Your Energy, Mood, and Health

Scientists are racing to grow human teeth in the lab
Scientists grew human-like teeth in pigs. Could it lead to living tooth replacements?

Some viruses can play a deadly game of hide and seek inside the human body

'Death fold' proteins can make cells self-destruct. Scientists want to control them
Vitamin B3 can help protect against skin cancer. Here's who may benefit
Liver cancer cases are projected to double, but more than half could be preventable

Scientists are modifying wildlife DNA. Should these species be released into nature?

Scientists find surprises under surface of burned forest streams 5 years after Oregon’s Labor Day fires
OPB’s First Look: Saving Breitenbush
‘A little bit of Armageddon’: How volunteer firefighters saved Oregon’s historic Breitenbush Hot Springs
Unburned trees left after Oregon’s Labor Day Fires are dying — a potential blow to future forests