Monday, December 7, 2015

Exercise 7


Introduction:
Obesity is one of the most serious problems to human health. Its cause many diseases, in addition its cause discomfort and feeling embarrassed.
Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health, leading to reduced life expectancy and/or increased health problems.

Body :
Causes Of Obesity

·       Energy Imbalance.
The core reason people become overweight or obese is fairly simple:
If you take in more calories than are required by your body on a daily basis (known as "energy imbalance"), those surplus calories will be converted into fat.
If this energy imbalance continues for an extended period of time, it will lead to overweight or obesity.

·       An Inactive Lifestyle
Many of people aren't very physically active. One reason for this is that many people spend hours in front of TVs and computers doing work, schoolwork, and leisure activities. In fact, more than two hours a day of regular TV viewing time has been linked to overweight and obesity.

·       Environment

Our environment doesn't support healthy lifestyle habits; in fact, it encourages obesity. Some reasons include:

Lack of neighborhood sidewalks and safe places for recreation. Not having area parks, trails, sidewalks, and affordable gyms makes it hard for people to be physically active.
Work schedules. People often say that they don't have time to be physically active because of long work hours and time spent commuting.

Lack of access to healthy foods. Some people don't live in neighborhoods that have supermarkets that sell healthy foods, such as fresh fruits and vegetables.


·       Medicines

Certain medicines may cause you to gain weight. These medicines include some corticosteroids, antidepressants, and seizure medicines.

These medicines can slow the rate at which your body burns calories, increase your appetite, or cause your body to hold on to extra water. All of these factors can lead to weight gain.


·       Emotional Factors

Some people eat more than usual when they're bored, angry, or stressed. Over time, overeating will lead to weight gain and may cause overweight or obesity.


·       Smoking

Some people gain weight when they stop smoking. One reason is that food often tastes and smells better after quitting smoking.

Another reason is because nicotine raises the rate at which your body burns calories, so you burn fewer calories when you stop smoking. However, smoking is a serious health risk, and quitting is more important than possible weight gain.


·       Age

As you get older, you tend to lose muscle, especially if you're less active. Muscle loss can slow down the rate at which your body burns calories. If you don't reduce your calorie intake as you get older, you may gain weight.


·       Pregnancy

During pregnancy, women gain weight to support their babies’ growth and development. After giving birth, some women find it hard to lose the weight. This may lead to overweight or obesity, especially after a few pregnancies.


·       Lack of Sleep

Research shows that lack of sleep increases the risk of obesity. For example, one study of teenagers showed that with each hour of sleep lost, the odds of becoming obese went up. Lack of sleep increases the risk of obesity in other age groups as well.

Sleep helps maintain a healthy balance of the hormones that make you feel hungry (ghrelin) or full (leptin). When you don't get enough sleep, your level of ghrelin goes up and your level of leptin goes down. This makes you feel hungrier than when you're well-rested.


Health Effects of Obesity
Obesity has a far-ranging negative effect on health. Each year obesity-related conditions cost over 150 billion dollars and cause an estimated 300,000 premature deaths in the US. The health effects associated with obesity include, but are not limited to, the following:

High blood pressure - Additional fat tissue in the body needs oxygen and nutrients in order to live, which requires the blood vessels to circulate more blood to the fat tissue.

Diabetes - Obesity is the major cause of type 2 diabetes. This type of diabetes usually begins in adulthood but, is now actually occurring in children.
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Heart disease – Atherosclerosis (hardening of the arteries) is present 10 times more often in obese people compared to those who are not obese.


UAE

In a survey released this year by Zurich International Life, 47.5 per cent of UAE residents were overweight, with a BMI of between 25 and 30, while another 13 per cent were obese, with a BMI of over 30. Since the average BMI in the UAE is 25.6, the average UAE resident is considered overweight.
Forty per cent of 11-to-16 year olds and 20 per cent of children under the age of 11 in the UAE are obese, according to Wafa Helmi Ayesh, Director of Clinical Nutrition Department at Dubai Health Authority. And an obese child is likely to grow into an obese adult.

Conclusion:
Hopefully after this activity you are more aware of the affects of obesity.  Many people do not realize how damaging obesity can be to the body and for your overall health.  Obesity is something that is increasingly on the rise today and will continue to rise unless we do something about it like informing people of how bad it really is and encouraging people to live a health-enhancing lifestyle.  A healthy diet and exercising two to three times a week is key to not becoming obese.  Let's change the trend of obesity by living healthy lives.

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