"Why do our tummies rumble - and when they do, does it always mean we are hungry?" asks James, aged 12. To get to the bottom of this noisy query, the doctors tune in to our guts. Show more
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"Why do our tummies rumble - and when they do, does it always mean we are hungry?" asks James, aged 12. To get to the bottom of this noisy query, the doctors tune in to our guts. Show more
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