Going to Bed Too Late? It Might Be Society's Fault
The human biological -- or circadian -- clock has a good deal of influence on when we awake in the morning, but according to a new study, cultural pressures and expectations, as well as daily responsibilities, have a say in when we go to sleep.
The study, published in the journal Science Advances, analyzed sleep data from more than 8,000 people in 100 countries. The average amount of sleep people get each night varied from country to country, with people in the Netherlands getting the most shuteye (about 8 hours and 12 minutes per night) and people in Singapore and Japan getting the least (about 7 hours and 24 minutes per night).
The data indicates that "bedtime is more under the control of society, and wake time is more under the control of [our biological] clock," a co-author of the study and a graduate student at the University of Michigan, Olivia Walch, told LiveScience.com.