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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.
What makes some people more prone to depression and less likely to respond to the medicines that can treat it? Comparing the genetic makeup of thousands of people is uncovering some answers, reports Cassandra Willyard.
