- Personal Health Information & Self-Help
Facts about sleep
Sleep is very essential for maintaining good physical and mental health
Facts About Sleep
It is a proven fact that not getting enough sleep can lead to difficulty in concentrating. In fact many experts think that lack of sleep is the reason for many ailments. An early detection of the problem is essential.
The underlying cause may be jet lag, shift working, chronic insomnia, a sleep disorder or simply trying to put in extra hours at work We all have experienced the exhaustion caused by lack of sleep. Sleep is as important to healthy living as eating properly and exercising. Getting a good night's sleep is one of the simplest things you can do to stay healthy.
How much Sleep do you need ?
A good night's sleep means waking up rested and energized. A healthy adult requires over eight hours of sleep a night. The amount of sleep it takes to achieve rejuvenation varies from person to person. If you consistently get less sleep than you need, a sleep deficit accumulates.
How important is a good night's sleep ?
Sleep is very important to maintain good health. Without it, you increase your chances of contracting a number of health problems, including heart disease, stroke, diabetes, obesity and depression.
Not getting enough sleep can disable your immune system. You eat well and exercise in order to boost up your immune system, but if you are not getting enough sleep, you undo all the good work. The immune system works best when you are asleep. That is when your body's defence system gets boosted. The immune system fights against viruses, bacteria, even cancer, and it does not work properly in the sleep deprived persons. A lot of damage might be done to your body when your immune system left you undefended and susceptible to infection.
It is not only your immune system that suffers when you cut down on sleep. There is a higher rate of heart failure amongst people with sleep disorders.
Sleep loss can affect key hormones
Studies show that chronic sleep loss can reduce the body's ability to regulate hormones and metabolise carbohydrates. In one study they reduced volunteer's sleep from eight to four hours a night. After less than a week, they noticed changes in the body similar to early diabetes, advanced aging and obesity. The hormone controlling hunger pangs, increases with lack of sleep, causing greater feelings of hunger. You too may have noticed that if you have insomnia due to some reason, you feel like raiding the refrigerator. Also our body produces more of the stress hormone cortisol, which increases fat storage. Not only do the increased hormones resulting from sleep loss make us eat more, but most of us also make poor food choices when we are tired.
Sleep is important not only to maintain a healthy body but also keep a balanced brain activity. During sleep your brain gets rest and it rejuvenates. When you do not get enough sleep, your brain chemicals become depleted and that causes emotional disturbances including depression, anxiety, and feelings of anger or sadness. So, have a good night's sleep regularly...zzzzz