Saturday, 11 May 2013

How much SLEEP DO YOU NEED...

SLEEP is a Important Bio Drive  and is a Active Process...please do consult your Doctor if  you  Have any Sleep related problems..and remember never self medicate..it can cause more harm..take care..

Myths and Facts about Sleep

Myth 1: Getting just one hour less sleep per night won’t affect your daytime functioning. You may not be noticeably sleepy during the day, but losing even one hour of sleep can affect your ability to think properly and respond quickly. It also compromises your cardiovascular health, energy balance, and ability to fight infections.
Myth 2: Your body adjusts quickly to different sleep schedules. Most people can reset their biological clock, but only by appropriately timed cues—and even then, by one–two hours per day at best. Consequently, it can take more than a week to adjust after traveling across several time zones or switching to the night shift.
Myth 3: Extra sleep at night can cure you of problems with excessive daytime fatigue. The quantity of sleep you get is important, sure, but it's the quality of your sleep that you really have to pay attention to. Some people sleep eight or nine hours a night but don’t feel well rested when they wake up because the quality of their sleep is poor.
Myth 4: You can make up for lost sleep during the week by sleeping more on the weekends.Although this sleeping pattern will help relieve part of a sleep debt, it will not completely make up for the lack of sleep. Furthermore, sleeping later on the weekends can affect your sleep-wake cycle so that it is much harder to go to sleep at the right time on Sunday nights and get up early on Monday mornings.
Adapted from: Your Guide to Healthy Sleep (PDF) The National Institutes of Health

How many hours of sleep do you need?

Average Sleep Needs by Age
Newborn to 2 months old
12 - 18 hrs
3 months to 1 year old
14 - 15 hrs
1 to 3 years old
12 - 14 hrs
3 to 5 years old
11 - 13 hrs
5 to 12 years old
10 - 11 hrs
12 to 18 years old
8.5 - 10 hrs
Adults (18+)
7.5 - 9 hrs
According to the National Institutes of Health, the average adult sleeps less than seven hours per night. In today’s fast-paced society, six or seven hours of sleep may sound pretty good. In reality, though, it’s a recipe for chronic sleep deprivation.
There is a big difference between the amount of sleep you can get by on and the amount you need to function optimally. Just because you're able to operate on seven hours of sleep doesn't mean you wouldn't feel a lot better and get more done if you spent an extra hour or two in bed.
While sleep requirements vary slightly from person to person, most healthy adults need between seven and a half to nine hours of sleep per night to function at their best. Children and teens need even more (see box at right). And despite the notion that our sleep needs decrease with age, older people still need at least seven and a half to eight hours of sleep. Since older adults often have trouble sleeping this long at night, daytime naps can help fill in the gap.
The best way to figure out if you're meeting your sleep needs is to evaluate how you feel as you go about your day. If you're logging enough hours, you'll feel energetic and alert all day long, from the moment you wake up until your regular bedtime.

Sleep needs and peak performance

There is a big difference between the amount of sleep you can get by on and the amount you need to function optimally. Just because you’re able to operate on seven hours of sleep doesn’t mean you wouldn’t feel a lot better and get more done if you spent an extra hour or two in bed. The best way to figure out if you’re meeting your sleep needs is to evaluate how you feel as you go about your day. If you’re logging enough hours, you’ll feel energetic and alert all day long, from the moment you wake up until your regular bedtime.

Think six hours of sleep is enough?

Think again. Researchers at the University of California, San Francisco discovered that some people have a gene that enables them to do well on six hours of sleep a night. This gene, however, is very rare, appearing in less than 3% of the population. For the other 97% of us, six hours doesn’t come close to cutting it.

Signs and symptoms of sleep deprivation and lack of sleep

If you’re getting less than eight hours of sleep each night, chances are you’re sleep deprived. What’s more, you probably have no idea just how much lack of sleep is affecting you.
How is it possible to be sleep deprived without knowing it? Most of the signs of sleep deprivation are much more subtle than falling face first into your dinner plate. Furthermore, if you’ve made a habit of skimping on sleep, you may not even remember what it feels like to be wide-awake, fully alert, and firing on all cylinders. Maybe it feels normal to get sleepy when you’re in a boring meeting, struggling through the afternoon slump, or dozing off after dinner, but the truth is that it’s only “normal” if you’re sleep deprived.

You may be sleep deprived if you...

  • Need an alarm clock in order to wake up on time
  • Rely on the snooze button
  • Have a hard time getting out of bed in the morning
  • Feel sluggish in the afternoon
  • Get sleepy in meetings, lectures, or warm rooms
  • Get drowsy after heavy meals or when driving
  • Need to nap to get through the day
  • Fall asleep while watching TV or relaxing in the evening
  • Feel the need to sleep in on weekends
  • Fall asleep within five minutes of going to bed

The effects of sleep deprivation and chronic lack of sleep

While it may seem like losing sleep isn't such a big deal, sleep deprivation has a wide range of negative effects that go way beyond daytime drowsiness. Lack of sleep affects your judgment, coordination, and reaction times. In fact, sleep deprivation can affect you just as much as being drunk.
The effects include:
  • Fatigue, lethargy, and lack of motivation
  • Moodiness and irritability
  • Reduced creativity and problem-solving skills
  • Inability to cope with stress
  • Reduced immunity; frequent colds and infections
  • Concentration and memory problems
  • Weight gain
  • Impaired motor skills and increased risk of accidents
  • Difficulty making decisions
  • Increased risk of diabetes, heart disease, and other health problem




Please  go through the previous  blogs for  other sleep related  issues...

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