Doctor explains why most marathon runners always need the bathroom at mile 18
As people are doing their final preparations ahead of the London Marathon, a gastroenterologist named Dr Trisha Pasricha has shared the reason why many runners will need the bathroom at mile 18
Black News 
As people are doing their final preparations ahead of the London Marathon, a gastroenterologist named Dr Trisha Pasricha has shared the reason why many runners will need the bathroom at mile 18
