The British scientists have proved what to work more than three hours per day senselessly
The eight-hour workday is not based on the optimal number of hours a human can concentrate. In fact, it has almost nothing to do with the kind of work most people do now: Its origins lie in the Industrial Revolution, not the Information Age. In the late 18th century, 10-16 hour workdays were normal because factories "needed" to be run 24/7. When it became clear that such long days were both brutal and unsustainable, leaders like Welsh activist Robert Owen advocated for shorter workdays. In 1817, his slogan became: "Eight hours labour, eight hours recreation, eight hours rest." However, this eight-hour movement didn't become standard until nearly a century later, when, in 1914, Ford Motor Company astonished everyone by cutting daily hours down to eight while simultaneously doubling wages. The result? Increased productivity. Thus, while it may be hard for some to believe, the eight-hour workday was initially instituted as way of making the average workday more humane. Now, the workday is ripe for another disruption. Research suggests that in an eight-hour day, the average worker is only productive for two hours and 53 minutes. That's right--you're probably only productive for around three hours a day.