Good reason to be an early bird

Night owls may have a higher risk of heart disease and type 2 diabetes than early risers.

A large international review has established that people who hit the sack later are more likely to eat erratically and consume more alcohol, sugars, caffeinated drinks and fast food, and less grains and veges.

Suzana Almoosawi, who led the study, says genes, ethnicity and gender determine the likelihood of being a morning or evening type.