HealthGlobal issuesHow our internal clock worksTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoHealthGlobal issues12/23/2022December 23, 2022Genes determine our chronotype: early birds are more alert in the mornings, while night owls like to sleep until late and tend to get going more slowly. How does this impact our health?https://p.dw.com/p/4L33KAdvertisement