Insufficient sleep and disrupted circadian rhythms are a major health problem today
Millions of dollars, thousands of deaths, and millions of injuries are related to sleep deprivation every year
56 billion dollars - 24,000 deaths - 2.5 million disabiling injuries related to a sleep-type deprivation
Exxon valdez, challanger, chyrnobel linked to sleep deprivation- at least partially
Data has shown that in the Spring (when people lose an hour of sleep) there were 8% more traffic accidents on the Monday immediately after daylight savings. Conversely, in the Fall (when people gain an hour of sleep), there were 8% fewer traffic accidents on the Monday immediately after daylight savings.
Studies have also shown an increased risk of myocardial infarction in Spring immediately after daylight savings,and adecreased risk of myocardial infarction in the Fall immediately after daylight savings.
Corren S. Traffic Accidents and Daylight Saving Time. New England Journal of Medicine. 1996;335(5):355-357. doi:10.1056/nejm199608013350517
Janszky I, Ljung R. Shifts to and from Daylight Saving Time and Incidence of Myocardial Infarction. New England Journal of Medicine. 2008;359(18):1966-1968. doi:10.1056/nejmc0807104.