Study: Night work wreaks havoc on the body

Doing the night shift throws the body "into chaos" and could cause long-term damage, warn researchers. Shift work has been linked to higher rates of type 2 diabetes, heart attacks and cancer. Now scientists at the Sleep Research Centre in Surrey have uncovered the disruption shift work causes at the deepest molecular level.

Background:
Night work 'throws body into chaos' [BBC]
Jet lag and night shifts disrupt rhythm of hundreds of genes, study shows [The Guardian]