DR CHRIS VAN TULLEKEN:If I said to you that inside your body right about here there's an organ that's longer than the average family car, you'd say that I was lying. Well I'm not, and I was lucky ...
The digestive system is like a big food factory inside our bodies. Its job is to break down the food we eat into smaller pieces so that our bodies can absorb the nutrients from the food to help us ...
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