Wednesday, July 08, 2015

The people who barely sleep...

What would you do if you had 60 days of extra free time a year? Ask Abby Ross, a retired psychologist from Miami, Florida, a “short-sleeper”. She needs only four hours sleep a night, so has a lot of spare time to fill while the rest of the world is in the land of nod.

“It’s wonderful to have so many hours in my day – I feel like I can live two lives,” she says.

Short-sleepers like Ross never feel lethargic, nor do they ever sleep in. They wake early – normally around four or five o’clock – raring to get on with their day. Margaret Thatcher may have been one – she famously said she needed just four hours a night, whereas Mariah Carey claims she needs 15.

What makes some people fantastically efficient sleepers, while others spend half their day snoozing? And can we change our sleeping pattern to make it more efficient?

In 2009, a woman came into Ying-Hui Fu’s lab at the University of California, San Francisco, complaining that she always woke up too early. At first, Fu thought the woman was an extreme morning lark – a person who goes to bed early and wakes early. However, the woman explained that she actually went to bed around midnight and woke at 4am feeling completely alert. It was the same for several members of her family, she said. Full story...

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