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Why can some people sleep through noises like a honking car or flushing toilet, while others are awakened by the lightest sound? To find the answer, sleep researchers at Massachusetts General Hospital conducted an unusual study of 12 self-described deep sleepers. The participants spent the night in a luxurious and comfortable room Phro Groove - Da Critix - Sure Slick of a hotel suite with soft pillows and cozy sheets.
But the room also included four speakers positioned near the top of the bed. During the night, the deep sleepers were subjected to 14 different recorded sounds, like street traffic, Victor Symphony Orchestra - Poet And Peasant Overture (Shellac) flushing, an ice machine dispensing and an Blood Brothers - Gravediggaz - Gravediggaz flying overhead.
Next door, the researchers monitored their sleep patterns and brain waves. As expected, all of the participants slept relatively well, but there were differences in how they responded to the noisy interruptions.
By comparison, a relatively quiet room with the whir of a central air-conditioner represents about 30 decibels of sound. They are called spindles because the researchers who identified the brain wave pattern in the s thought it resembled yarn wrapped around a dowel. The source of the spindles is the thalamus, a part of the brain that sends sensory information to the rest of the cortex.
They found that the sleepers who experienced the most sleep spindles during the night were also the soundest sleepers and were least likely to be awakened by noise, according to the report, which appeared in the latest issue of Current Biology. The finding is important because it sheds new light on the brain-based differences between light and deep sleepers.
Jeffrey M. Ellenbogen, chief of the division of sleep medicine at Harvard Medical School. People also produce fewer sleep spindles as they age.
But even when controlling for the stage of sleep a person was in, the number of sleep spindles still predicted their risk for awakening because of noise.
More research is needed, but the findings suggest that a better understanding of sleep spindles could lead to new behavioral or drug therapies for people with sleep disorders. For instance, future studies may try to determine whether diet, exercise or other behaviors Wake Up - Hard Fast & Loud - Fix influence the number of sleep spindles a person produces during the night. The findings also raise questions about the current crop of sleep medications, which work essentially by sedating the entire brain.
But the study shows that the natural sleep patterns associated with the best sleep occur when the thalamus is highly active. Ellenbogen said. The best thing we can offer them is to leverage naturally occurring sleep states and enhancing them.
I was not a light sleeper when younger but I worked the over night shift for 8 years and said good-bye to good sleep. I sleep light. I would rather be a light sleeper than someone who could sleep through a fire alarm or some other type of emergency. I am one of the lightest sleepers, and I have no clue why.
When Melodien Band II (1983) - Peter Streiff - Vokal/Instrumental was in college, I discovered the only way I could sleep over the noise of roommates was to turn my fan on. Twenty years later I still keep the fan on. Without the fan on, every little noise wakes me up. Every night, all year, cold or hot, winter or summer the fan is always on when I sleep.
It drowns out any noise. Usually on low. When the noise gets louder I simply turn up the fan. Works perfectly. My wifes Cat starts mewing every morn around 4 am. She wont stop until my wife goes out and sleeps on the couch with her. A symptom of GAD is light sleeping. When Ric and I first married three years ago his snoring took some getting used to and often woke me.
But that dripping faucet in our kitchen? Hey, go figure! ZZZzzzZ am — The bars have closed and now the serial squeaks of the front door begin as the barflies trickle in. To your health. We are at the our summer cabin in Montana not far from the West gate of Yellowstone Park. We had a grizzly sow and her cub try and get into in-laws The Bells (On Our Wedding Day) - Various - Soul Breakout 59 can 2 nights ago.
Their cabin is about ft from outs. The cans are properly stowed in a closed area outside but she torn it open and the screen door. Their dogs slept thru it, so did the humans but finally the cat alerted them to the danger. The cabin is sq ft Wake Up - Hard Fast & Loud - Fix bedrooms are not far from the back door. Since they often come back the next night, I spent last night alert to any noise.
My cats growled about 2 am and then ducked under the bed. On top of all that, I heard on the news that 2 escape dangerous convicts are on the loose and thought to be in Y. After year of no sleep while on holiday I finally started using good ear plugs.
Escaped convicts? That would keep most people up at night! Sleep is under the influence of a hormone or neurotransmitter than circulates in the blood. The spindles are probably related to cognition. Sleeping Wake Up - Hard Fast & Loud - Fix process sounds that they hear and evaluate them for danger. Some people are probably better at it Breaking All The Rules (Radio Mix) - She Moves - Breaking All The Rules others.
Or they may have less of an alarm at first hearing the sound. I have woken up during very Wake Up - Hard Fast & Loud - Fix earthquakes but have also slept through major ones. I would be interested in more research as to the correlation between waking up and perceiving sound without waking.
I remember being told lo these many years ago that hearing is the very last sense to go when one loses consciousness — which is why medical professionals are warned to be very careful what they say around people assumed to be comatose or unconscious — and that being able to perceive and interpret sounds even while deeply asleep had developed as a survival mechanism so that predators could not sneak up on you.
Were they able or did they try to measure evidence that the sleepers who did not awake perceived the sounds? Perhaps they could measure whether particular kinds of sounds, threatening vs nonthreatening, were more likely to wake a sleeper, and how that correlated with light vs heavy sleep; or whether sleepers reported dreams that might have been influenced by a sound, e.
I do occasionally have a hard time falling asleep though, and have found that a uniform din of noise, a crowd talking does not bother me, whereas intermittent noises one-on-one conversation drives me nuts. I am also able to sleep through routine noises like the cats mewing for breakfast or the sanitation truck making its rounds.
Anything except the softest sounds will usually wake me, from a creaking floor to a chirp from a keyless remote locking a car outside. Thankfully there are those background sound generators to mask out most of the innocuous noises. I used to sleep like a rock. Then I had a kid. Never been the same since. My kid now sleeps like a rock. I know where she got it from. Someone should study if motherhood makes you a light sleeper! I love my Ambien, the only thing that consistently allows me good sleep along with a fan.
My grandmother and aunt were light sleepers, my aunt super-light like me always waking up in the night to read Wake Up - Hard Fast & Loud - Fix do crossword puzzles.
I wonder if there is any correlation with anxiety in waking state? I would assume if one suffers from anxiety disorders they would tend to also sleep lighter out of an hypervigilance. Earplugs are good and can be gotten used to with practice. It certainly helps me. So two points to explore further. I have had strange sleep patterns since childhood. Regardless of when I turn off the lights, my eyes fly open Wake Up - Hard Fast & Loud - Fix around 4 a.
When I was younger and knew that I soon had to get up and go to school, it was impossible for me to get back to sleep and I would usually be tired all day in school.
When I was older and working, the same sleep pattern and the knowledge that I had to go to work would keep me up. For that reason, I left my job as a school social worker and went into private practice. Now that I can set my own schedule, the 4a. This has worked for me for years, leaving me feeling as though I have had enough sleep.
I feel for anyone who is going through the day feeling sleep-deprived. What I have found to help me sleep at night is meditation music. Visit — Deep Meditation Music. The sound of another person flushing Cold Night - Robert Jon & The Wreck - Glory Bound toilet would only be strange if you live alone.
That said, there will always Wake Up - Hard Fast & Loud - Fix people for whom any sound, even the commonly-heard or expected ones, will cause them to awake. Earplugs…been using them for about 30 years because the slightest sounds wakes me up in our quiet neighborhood such as a car door closing or pine cones falling. Need a CPAP which creates a white sound…this helps. Just installed insulated windows.
Changing light is a problem with the early sunrise in summer or car lights through the blinds. Using a CPAP and sleep mask is The Royal Heirs - Would You Believe? much! Keep the bedroom door closed so no cats can walk on the bed.
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