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Sleep and television cited as risk factors for obesity

Pre-school children who watch too much television and sleep less than ten hours a night run a higher risk of being obese by the age of seven, researchers claim. Scientists from Glasgow and Bristol universities conducted a study to identify the triggers of childhood obesity, based on the theory that a child's early environment can influence their weight in later life.

Scientists from Glasgow and Bristol universities conducted a study to identify the triggers of childhood obesity, based on the theory that a child's early environment can influence their weight in later life.

The study, published last week by the British Medical Journal, involved 9,143 seven-year-olds in the Avon longitudinal birth cohort study of parents and children. Researchers examined 25 potential obesity risk factors, of which eight were found to be significantly associated with childhood obesity. These are:

* Parental obesity (one or both parents)

* More than eight hours spent watching television per week at the age of three

* Sleeping less than 10.5 hours a night at the age of three

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