How many hours of sleep can we REALLY survive on - and for how long? Scientists reveal when sleep deprivation becomes deadly...as world leaders say just three hours is enough

Sanae Takaichi - Japan's first female PM - revealed earlier this month that she's slept a maximum of three hours a night during her nine-month reign in power. But is it safe?

How many hours of sleep can we REALLY survive on - and for how long? Scientists reveal when sleep deprivation becomes deadly...as world leaders say just three hours is enough












Sanae Takaichi - Japan's first female PM - revealed earlier this month that she's slept a maximum of three hours a night during her nine-month reign in power. But is it safe?

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