It's a myth that's been debunked more times than a Kardashian's reputation. The 8-hour workday has been around for decades, and still, people cling to it like a worn-out security blanket.
The 8-hour workday originated from the 19th-century industrial revolution, where factories were churning out clock-punching, union-busting, worker-beans like there was no tomorrow. It was a time for efficiency, not for human well-being. And we're still living with the consequences.
Try this: work 2-3 hours, then take a walk. Take a walk, and I mean a real walk. Not a "step away from my desk and pretend to stretch" walk. A walk that makes you feel like you're walking on sunshine.