Microplastics are everywhere, but are they harming us?
Competing for two: Pregnant Olympians push the boundaries of possibility in Paris
Belgium withdraws from mixed relay triathlon after athlete who swam in Seine River falls ill
Drugstores tinker with new looks as their usual way of doing business faces challenges
More Olympians are set to compete in the Seine River. Here's the latest on water quality concerns
More US schools are taking breaks for meditation. Teachers say it helps students' mental health
IBS and digestive trouble are in the spotlight on social media. Here's what you should know
Younger adults are going public with their digestive problems. Experts say it's mostly a good thing
