City Dwellers and Hunter-Gatherers Have Similar Sleep Habits

We tend to blame the fruits of industrialized society - the Internet, mobile devices, long hours in the office -- for stripping us of a good night's rest. But are we really sleeping less now compared with our distant relatives, before iPads and PowerPoint presentations were invented? According to a provocative new study, the answer is no. A UCLA-led team of researchers analyzed the sleep patterns of people living in three tropical, preindustrial societies still thriving today in Bolivia an