Why Morning People Thrive

Social jet lag was described bychronobiologists (those who study the brain’s time-keeping mechanisms) atUniversity of Munich in 2006 as “misalignment of biological and social time.”

That could mean, for example, that when the world issaying it’s time for bed, you’re not tired. When the world is saying it’s timefor work, you’re sure you need more sleep. A growing number of experts believethat this phenomenon is real, common, and beyond our control—and that thehealth consequences are serious.