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Hello, and welcome back to Everyday Science .

This week, doctors are meeting in London to debate the best ways of helping people with a medical condition that not everyone agrees exists.

According to those attending the International Food Addiction and Comorbidities Conference , some people have a condition called food addiction, which is similar to when people are addicted to alcohol or drugs.

Understanding what causes it could help reverse the obesity crisis, they say.

Others are more sceptical, though, saying the concept adds little to our existing knowledge that some people eat too much

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