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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Many people think that if they do not have two or more bowel movements every single day of their lives they are constipated. This is patently not true, writes DietDoc.
Do you still believe that hay fever is caused by hay? Or that food allergies are really common? No, and no again. We bust 10 myths about allergies.