2012年4月18日 星期三

Why Is Sleep Important For Your Health


We all know that sleep is essential to our health and well-being. Yet, ironically, various surveys conducted showed that millions of people still suffer from lack of sleep. For example, many Americans experience some form of sleep problems at least a few nights a week or more. And sometimes, most of these problems go undiagnosed or untreated. But we must understand that not sleeping enough and not sleeping well is not okay, and never will be. Being deprived of sleep can cause a great impact on your body. But how?

Here is a short list of the known reasons why is sleep important for your health.

A healthier heart. Lack of sleep has been associated with worsening of blood pressure and cholesterol, all of which are risk factors of heart attack and stroke. It is also been said that heart attacks and strokes are more common during early morning hours. This fact may be explained by the way sleep interacts with the blood vessels.
Decreased risk for cancer. According to studies, people working the late shift have a higher risk for breast and colon cancer. This may be caused by differing levels of melatonin in people who are exposed to light at night. Light exposure reduces the level of melatonin, a hormone that regulates our sleep and is thought to protect against cancer. It has been believed that melatonin suppresses the growth of tumors.
Increased energy levels and being more alert. When you are well rested from a night of high quality restorative sleep, you have much more energy and have increased alertness the following day. In addition, being engaged and active does not only make you feel great but it will also increase your chances for another good night's sleep. When you wake up feeling refreshed, you can use that energy to get out into the daylight, do active things, and be engaged in the world. You'll sleep better the next night and the night after.
A happier, calmer, more positive attitude.Lack of sleep can have a drastic effect on your mental health. If you are constantly tired and drained, it can make you irritable, moody and negative. Moreover, sleep impacts many of the chemicals in your body, including serotonin. People with a deficiency in serotonin are more likely to suffer from depression. You can help to prevent depression by making sure you are getting the right amount of sleep.
Reduced appetite, thus helping you lose weight. Researcher shows that people who sleep less than seven hours per night are more likely to be overweight or obese. It is thought that the lack of sleep impacts the balance of hormones in the body that affect appetite. The hormones ghrelin and leptin, important for the regulation of appetite, have been found to be disrupted by lack of sleep. Therefore, by getting enough sleep, you will have much more control over your appetite.
Better memory recollection and improved concentration. Your dreams and deep sleep are an important time for your brain to make memories and links. It is during this time that the brain is busy processing your day, making connections between events, sensory input, feelings and memories. Getting more quality sleep will help you remember and process things better. In addition, when your mind has rested well, you'll find you yourself having improved concentration and feeling much sharper during the day.
Faster physical recovery. It is during our sleep that our body repairs damage caused by stress, ultraviolet rays and other harmful exposures. Our cells produce more protein while we sleep and these protein molecules form the building blocks for cells, allowing them to repair damage. Without the right kind of sleep, our body cannot repair itself properly.
Improved sexual appetite. When you are shattered due to a lack of sleep, one of the last things on your mind is sex. By getting enough sleep, you'll get your life, and sex life, back on track.

With the above reasons, it is with no doubt why is sleep important for your health. Each individual needs to get enough rest for our body processes to function well. If you happen to be suffering from a sleeping problem, you need not to worry because there are many means out there for you to overcome it. When you get the right amount of sleep you needed, you are sure to avail yourself of the above health benefits.




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