Professor Mike Kelly, of the health watchdog Nice, has said it is difficult for obese children to lose weight without help from their families.
Speaking on Daybreak, he said that spiralling obesity was to blame for a range of childhood diseases that were not seen in children several decades ago.
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A man, believed to be in his 50s, was pronounced dead at the scene after apparently suffering a heart attack.
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Fine for most on Monday but turning increasingly windy