According to a study, adults who watched a lot of telly when they were kids are more likely to be overweight, to smoke and have high cholesterol.

1,000 people born in 1972 and 1973 had their health and TV habits checked every few years until they were 26.

Other experts say the study shows junk food ads should be banned during children's programmes.

Researchers said adults should take charge, and turn the TV off.

A CBBC spokeswoman said TV wasn't the only reason that kids were becoming less healthy.