Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
For many years, epidemiologists have linked sleep deprivation to poor health. Now, even as the average amount of shuteye people get continues to diminish, new evidence from biological research helps explain how missing out on sleep might contribute to obesity and diabetes. Cassandra Willyard asks what happens when we ignore the sandman.
