You might have heard the rumours as a kid: Swallow gum and it will sit stubbornly in your stomach for seven long years.
But what does science have to say about that? Reactions, a video series from the American Chemical Society, traced the steps taken by our body's digestive system to find out that while some of the gum we chew can survive digestion, it doesn't mean the gum you swallowed in grade school is still there.
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