A little voice called out my name at 2:30 a.m. this morning to announce that he was piling into our bed. The huge crack of thunder awoke him and he was very scared of the storm that was passing through. As I groggily scooted over in bed he tugged on my hand so I would get up and go turn on the bathroom light for him.
With a yawn I made my way to the bathroom, turned on the light, and then sat down on the couch waiting for the little cowboy. As he rounded the corner heading towards the bathroom he glanced at the fish tank. He washed his hands and made his way back out into the living room. He pressed his nose right up to the glass on the fish tank and then looked up and down and side to side. He nodded his head and then came over to the couch.
He grabbed my hand as we walked back down the hall to the bedroom.
With a little giggle he said to me, "I guess fish don't sleep!"
A smile came across my face and I too, giggled.
I never really thought about it but fish don't sleep.
Cliff Claven, a.k.a. the husband was snoring and didn't move an inch as we snuggled back into bed. Normally he would give the little cowboy a detailed report on why fish don't close their eyes and don't need the required sleep we do.
For now it remains a mystery. . . . . .
How much sleep do you get each night? 8, 10, even 11 hours of sleep. It's an average of 6 for me. That doesn't even come close to what I actually need. Do you know why you need at least 8 hours of sleep?
Research on sleep from the Web MD Website
Doctors have long known that many hormones are affected by sleep, but it wasn't until recently that appetite entered the picture. What brought it into focus was research on the hormones leptin and ghrelin. First, doctors say that both can influence our appetite. And studies show that production of both may be influenced by how much or how little we sleep.
In fact, have you ever experienced a sleepless night followed by a day when no matter what you ate you never felt full or satisfied? If so, then you have experienced the workings of leptin and ghrelin.
Leptin and ghrelin work in a kind of "checks and balances" system to control feelings of hunger and fullness, explains Michael Breus, PhD, a faculty member of the Atlanta School of Sleep Medicine and director of The Sleep Disorders Centers of Southeastern Lung Care in Atlanta. Ghrelin, which is produced in the gastrointestinal tract, stimulates appetite, while leptin, produced in fat cells, sends a signal to the brain when you are full.
So what's the connection to sleep? "When you don't get enough sleep, it drives leptin levels down, which means you don't feel as satisfied after you eat. Lack of sleep also causes ghrelin levels to rise, which means your appetite is stimulated, so you want more food," Breus tells WebMD.
The two combined, he says, can set the stage for overeating, which in turn may lead to weight gain.
How the hormones leptin and ghrelin set the stage for overeating was recently explored in two studies conducted at the University of Chicago in Illinois and at Stanford University in California.
In the Chicago study, doctors measured levels of leptin and ghrelin in 12 healthy men. They also noted their hunger and appetite levels. Soon after, the men were subjected to two days of sleep deprivation followed by two days of extended sleep. During this time doctors continued to monitor hormone levels, appetite, and activity.
The end result: When sleep was restricted, leptin levels went down and ghrelin levels went up. Not surprisingly, the men's appetite also increased proportionally. Their desire for high carbohydrate, calorie-dense foods increased by a whopping 45%.
It was in the Stanford study, however, that the more provocative meaning of the leptin-ghrelin effect came to light. In this research -- a joint project between Stanford and the University of Wisconsin -- about 1,000 volunteers reported the number of hours they slept each night. Doctors then measured their levels of ghrelin and leptin, as well as charted their weight.
The result: Those who slept less than eight hours a night not only had lower levels of leptin and higher levels of ghrelin, but they also had a higher level of body fat. What's more, that level of body fat seemed to correlate with their sleep patterns. Specifically, those who slept the fewest hours per night weighed the most.
As a result of these and other studies, researchers began to theorize that getting more sleep just might be the answer to society's burgeoning waistline. But before you trade the cost of your gym membership for a pricey new mattress, take note: Experts also say the relationship is not as obvious as it seems.
The reason: Enter the somewhat mysterious nocturnal ailment known as "obstructive sleep apnea." People with sleep apnea may stop breathing for up to a minute, sometimes hundreds of times during the night while sleeping, says Dominic Roca, MD, director of the Connecticut Center for Sleep Medicine at Stamford Hospital.
Though the exact cause of the problem remains unknown, Roca and others believe that in most instances
physical abnormalities inside the mouth and neck cause the soft tissue in the rear of the throat to collapse. This briefly closes off air passages many times during a night, causing disruption in breathing and a tendency to snore.
The end result: Although you may go to bed early and think you are getting a good night's rest, the disruption in breathing prevents you from getting deep sleep. Eight hours of disrupted shut eye can leave you feeling like you had only four.
"You wake up feeling tired and continue to feel tired all day," Roca tells WebMD.
Until doctors do know more, most experts agree that if you are dieting, logging in a few extra hours of sleep a week is not a bad idea, particularly if you get six hours of sleep or less a night. You may just discover that you aren't as hungry, or that you have lessened your craving for sugary, calorie-dense foods.
"One thing I have seen is that once a person is not as tired, they don't need to rely on sweet foods and high carbohydrate snacks to keep them awake -- and that automatically translates into eating fewer calories," says Breus.
If, on the other hand, you already sleep a lot, or you increase your sleep and feel even more tired, you should talk to your doctor. Experts say you may be one of the thousands of people with undiagnosed sleep apnea.
Says Roca: "As research continues, more and more data comes to the forefront to suggest that you simply can't cut back on sleep without paying some price."
Fish may not need to sleep but Meltdown participants need at least 8 hours of ZZZZzzzzzz's!
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