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
Latest on Seine River water quality concerns as more Olympians are set to compete
Drugstores tinker with new looks as their usual way of doing business faces challenges
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
