Historically, people slept for four hours, woke up for a couple of hours, then fell back asleep for another four hours, according to historian Roger Ekirch of Virginia Tech. In 2001, he "published a seminal paper, drawn from 16 years of research, revealing a wealth of historical evidence that humans used to sleep in two distinct chunks."
His book At Day's Close: Night in Times Past, published four years later, unearths more than 500 references to a segmented sleeping pattern - in diaries, court records, medical books and literature, from Homer's Odyssey to an anthropological account of modern tribes in Nigeria.
During this waking period people were quite active. They often got up, went to the toilet or smoked tobacco and some even visited neighbours. Most people stayed in bed, read, wrote and often prayed. Countless prayer manuals from the late 15th Century offered special prayers for the hours in between sleeps.
And these hours weren't entirely solitary - people often chatted to bed-fellows or had sex.
A doctor's manual from 16th Century France even advised couples that the best time to conceive was not at the end of a long day's labour but "after the first sleep", when "they have more enjoyment" and "do it better".
BBC: The myth of the eight-hour sleep (Via TYWKIWWDBI)
Maria Farrell admits that comparing smartphones to abusive men (they try to keep you from friends and family, they make it hard to study or go to work, they constantly follow you and check up on you) might seem to trivialize domestic partner violence, but, as she points out, feminists have long been pointing out […]
Trump wants to roll back regulations that promote low-power light bulbs, even though at this point the industry has moved on and isn’t likely to do much in the way of modernizing incandescents. His interest is, as always, deeply personal: he thinks LED lights make him look orange. “The light bulb,” the president began. “People […]
The wonderful folks at Paleotronic (previously) have rounded up scans of articles from 1980s-era computer magazines that advised new computer users on navigating the burgeoning world of dial-up BBSes.
Life isn’t getting any less hectic, and pressure cookers are a quick, healthy solution for a growing number of kitchens. But if you thought your Instant Pot was versatile, there’s a major upgrade on the market: The Yedi 9-in-1 Total Package Instant Programmable Pressure Cooker. If you’ve somehow never used a pressure cooker before, try […]
When it comes to data analytics or deep learning, there’s one language behind the apps and algorithms that power the biggest companies of today: Python. The best part about this tool is that as versatile as it is, it’s actually fairly easy to learn. But mastery? For that, you need more than just a beginners’ […]
Your smartphone’s GPS is a modern necessity for some trips, but how do you use it safely? It’s been a problem ever since phones went mobile. A certain phone mount even shelled out the money for a commercial during the Big Game, so clearly there’s a market for the solution. Turns out there are a […]