some folks are born needing just 4-6 hours of sleep nightly, thanks to a mutation in the ADRB1 gene. They're often more upbeat, energetic, and adept at multitasking, with higher pain tolerance and no jet lag. Some even think they might live longer.

Imagine this:

in an 80-year lifespan, you'd typically sleep away 20 years.

But for these short sleepers, it's only 10 years, giving them an extra decade of awake life!