Showing posts with label sleep. Show all posts
Showing posts with label sleep. Show all posts

Wednesday, 10 February 2016

In Search of Forty Winks -- Gizmos for a good night’s sleep.

It’s 2:49 A.M., more or less my bedtime, and I’m about to put on my Sleep Shepherd hat, a device designed to help the wearer go gentle into unconsciousness ($149.99). The hat is a stretchy black beanie, but where you might normally find a pompom there’s a plastic box the size of a Triscuit. If I were an alien, this would be the port through which I’d receive my instructions from the mother ship. The box has an on-off switch, and I’m going to turn it on so that the mechanism can commune with my head.

The hat measures activity in my cerebral cortex through three sensors sewn into the fabric—one covering each ear and a third handling the forehead. There are also built-in speakers that emit pulsing tones mimicking the frequencies of my brain waves. Gradually, the rhythm will slow down and, supposedly, so will my brain, entrained as if by a hypnotist. The noise sounds like the tone you’d expect to hear before a nuclear disaster. It’s supposed to be soothing, and, truth be told, I don’t mind it. The hat was invented by Michael Larson, a mechanical engineer at the University of Colorado. Larson told me, over the phone, that he came up with it to treat his daughter, who had an autoimmune disease that prevented her from getting enough deep sleep. The contraption apparently did the trick.

Read The NewYorker Article

Friday, 29 January 2016

What really happens to your body when you’re sleeping?

What really happens to your body when you’re sleeping?

Did you know that you spend 1/3rd of your life sleeping? Sleep allows your body to repair and detoxify itself after a hard day’s work. When you’re sleeping, a plethora of activities take place in your body, which are essential for your physical, emotional and mental well-being. Read on to find out what happens to your different body parts after you’ve drifted off…

Brain
Even though activity in the brain’s cortex (the outer part of the brain) falls by about 40% in the first few stages of sleep, your brain still continues to remain extremely active; especially in the final stage. During the REM phase your brain activity increases with your blood flow rising considerably in those areas of the brain that are responsible for processing emotional experiences and memories.

Eyes
Like the brain, even the eyes are active when you’re asleep and the movement of your eyes is indicative of the different stages of sleep. REM (rapid eye movement) sleep denotes deep sleep and occurs in the first 90 minutes of falling asleep (which is dreamless sleep). On the other hand, NREM sleep (non-rapid eye movement) is when you’re dreaming and your sleep quality is rather poor in comparison. This takes place during the later part of your sleep.

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Monday, 25 January 2016

Sleep Can Bring Life Changing Ideas

From solving problems to flashes of inspiration, scientists are beginning to unravel the creative powerhouse that is the mind at night.

By Kate Wighton / The Times UK

History is peppered with tales of phenomenal ideas taking shape in sleeping minds; Paul McCartney said that he awoke with the tune of Yesterday in his head, and Robert Louis Stevenson said that the idea for The Strange Case of Dr Jekyll and Mr Hydecame to him in a dream.

But what exactly is going on in our minds while we sleep? Does slumber really prompt creative genius? And can the most uncreative of people receive flashes of inspiration once their head hits the pillow?

Scientists believe that the mind at night weaves together bits of information in innovative ways. Throughout the day your brain rarely gets a chance to stop and think. In a state of constant alertness, it responds to a stream of challenges, from writing a report for a work deadline to remembering where you left your car keys and figuring out what to buy for dinner.

Even when we are relaxing in front of the television, the brain is still beavering away, processing the information about the plot lines, or co-ordinating your arm movements every time you sip your wine. Believe or not, even watching Strictly Come Dancing requires brain power.

Sleep is the only time when your brain gets to relax and mull over the thoughts of the day. This is when new ideas and ways of thinking start to emerge.

“Think of your brain like a web,” says Russell Foster, Professor of Circadian Neuroscience at Oxford University.

“During the day the web is very tight, so you can only put information in a certain number of places. During sleep the web expands, and with the luxury of time, those bits of information can be put into lots of different places and make new associations.”

He adds that this process may help to foster the formation of new ideas. Experts, however, are divided on whether this occurs when you dream, or during deeper, non-dreaming sleep. This bringing together of seemingly unrelated bits of information is crucial to helping the brain think itself out of problems, says Matthew Walker, a sleep researcher at University of California, Berkeley.

“Sleep seems to stimulate your mind to make non-obvious connections. It puts all the information from the day into a big biological theatre and forces the mind to speak to people at the back of the theatre, who you may not think you have any connection with. This is the basis of creativity - connecting ideas, events and memories that wouldn't normally fit together.”

In fact, this creative process has been visualised by scientists. By placing volunteers into brain scanners and sending them to sleep, scientists have seen that the areas associated with emotion go into overdrive, especially while dreaming, while the areas that are responsible for logic are switched off. This not only explains why dreams are incredibly random - you can be talking to a colleague one minute and the next minute sitting in a your old school classroom dressed in your pyjamas - but this rewiring also explains how the brain can pull together disparate information. As to how much sleep we need, experts believe this varies from person to person. But a sure sign of sleep deprivation is feeling sleepy during the day, aside from the mid-afternoon slump.

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Saturday, 22 September 2012

Interesting articles to read -- 22-09-2012

Interesting articles to read -- 22-09-2012

From agriculture to stock markets: 8 changes govt can make to keep the reform momentum going Read

The transformer: Gujarat's power sector turnaround story Read

Infosys shows the way on Green walk Read

As if by Magic: What Kolaveri Di's success can teach marketing students Read

Whose Copy, whose Right? Read

Chasing the Monsoon: MakeMyTrip.com founder lists out top travel destinations for monsoon Read

100 Benefits of Meditation Read

Sleep: Slidin’ Away - Stress is a way of life in today’s overworked and Net-worked world. To beat the stress as well as rejuvenate, a power nap is perhaps the best way and companies like Nike & British Airways are all In favour of it. ET Magazine puts together some of its advantages Read

Archives

Saturday, 28 January 2012

11 tips for a better night's sleep

1. Don't go to bed angry.
2. Let bed be bed.
3. Limit caffeine.
4. Choose a wake-up time.
5. Nap fast.
6. Research relaxation.
7. Get physical.
8. Do the dark.
9. Pick a protein.
10. Keep cool.
11. Invest in a bed.

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