Social jetlag and its consequences

Social jetlag and its consequences. Why are most people in industrialized societies so tired? The reason lies in an increasing discrepancy between our body clocks' internal time and the social demands on work/school days (social jetlag). Because we predominately work inside, our body clocks have become later over the years while work times have stayed approximately the same. Body clocks use the light-dark cycle to synchronize to the 24-hr day, while society manipulates social time (e.g., time...