Wednesday, July 20, 2016

SHORT SLEEPERS

Researchers have found a gene mutation which allows some people to sleep as little as four hours a night.

Researchers discovered a tiny mutation in a gene DEC2 that was present in those who were short-sleepers, but not in members of the family who had normal length sleep, nor in 250 unrelated volunteers.

When the team bred mice to express this same mutation, the rodents also slept less but performed just as well as regular mice when given physical and cognitive tasks.

Getting too little sleep normally has a significant impact on health, quality of life and life expectancy. It can cause depression, weight gain and put you at greater risk of stroke and diabetes. “Sleep is so important, if you sleep well you can avoid many diseases, even dementia,” said the lead researcher. “If you deprive someone of just two hours sleep a day, their cognitive functions become significantly impaired almost immediately.”
But why sleep is so important is still a bit of a mystery. The general consensus is that the brain needs sleep to do some housekeeping and general maintenance, since it doesn’t get much downtime during the day. While we sleep, the brain can repair cellular damage, remove toxins that accumulate during the day, boost flagging energy supplies and lay down memories.

People with the DEC2 mutation can do the same cleaning up process in a shorter period of time – they are just more efficient than the rest of us at sleeping.

Since discovering the DEC2 mutation, a lot of people have come forward claiming to only sleep a few hours a day. Most of these had insomnia. “We’re not focusing on those people who have sleeping issues that make them sleep less, we wanted to focus on people who sleep for a few hours and feel great.”
A positive outlook is common among all of the short-sleepers  studied. “Anecdotally,” the report says, “they are all very energetic, very optimistic. It’s very common for them to feel like they want to cram as much into life as they can, but we’re not sure how or whether this is related to their mutations.”

One can assume sleep deprivation can cause lingering mental issues including concentration, nightmares, lack of focus, anxiety, stress, tiredness and physical and mental mistakes. It sounds like much of the early characters coping with the island. In fact, rarely did we see any character sleeping or awaking from a deep slumber. It was non-stop action and reaction.

Is that itself a clue to the dynamics of the story? Were the fact that the LOST characters on edge, seeing smoke monsters, hallucinations and voices really caused by sleep deprivation? And if this was a giant experiment to determine who could function with less REM sleep, did anyone come close to a functioning, normal human being?