Matt Damon is refusing to go to the bathroom until everyone in the world has access to one. Of course, he has gone to the loo since this speech, but he's making a good point! Read more about SA's water crisis.
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Diverse bacteria help your gut stay healthy. Here's how what you eat and drink can help or harm that balance - and it's not all bad news.
Stephanie van Niekerk unwittingly infected her husband with HIV and ended up having to watch him wither and die in front of her very eyes. This is Stephanie's story in her own words.