Tuesday, June 2, 2009
Do Wireless Routers Cause Cancer
PHYSICAL ACTIVITY BENEFITS OF PHYSICAL ACTIVITY
1 . Introduction
2. What is meant by physical activity?
3. What are the benefits of physical activity?
1. Heart disease and stroke
2. Obesity
3. Diabetes
4. Cancer
5. Bone and muscle health
6. Mental health
4. What is the cost of inaction?
5. What risks are associated with physical activity?
6. How much physical activity do we need?
7. Conclusions
1. Introduction
In the struggle for weight control and general good health, it makes much of the type and amount of food and beverages consumed. Less attention has been paid to the amount of energy we would spend if we were physically active. But the two are closely linked. Unlike our ancestors, we no longer need to use too much energy to find food. Due to technological advances, motor transport, automation and labor-saving machinery, most people have fewer opportunities to expend energy. It has been shown that approximately 70% of the population in Western countries is not active enough to enjoy good health and weight maintenance.
2. What mean physical activity?
Physical activity, exercise, fitness - all these terms are commonly used to refer to the physically active. Yet, in scientific terms, may have slightly different meanings. The most commonly used terms are defined in the following table.
Definitions related to physical activity:
Physical activity is the total energy consumed by the movement of the body. Includes daily routine activities such as housework, go shopping, work. Exercise
Movements planned and designed specifically for fitness and good health. Sports
physical activity carried out as a competition that is governed by rules. In many European countries the term covers all types of sports exercises and physical activities during leisure time.
Physical Fitness Series
attributes such as strength, mobility and strength required to perform physical activities.
Physical activity refers to the total energy expended to move. The best physical activities are daily activities, which involve moving the body, as walking, cycling, climbing stairs, doing housework, going shopping, and most of them are an inherent part of our routine.
On the contrary, exercise is a planned and deliberate effort, at least in part, to improve physical fitness and health. May include activities such as brisk walking, cycling, aerobics and maybe some active hobbies such as gardening and competitive sports. (...)
3. What are the benefits of physical activity?
Increased physical activity has many rewards, including reduced risk of certain diseases and conditions and improving mental health.
3.1. Heart disease and stroke
Coronary heart disease is the leading cause of death in Europe. Lead active lifestyles, with a moderately high level of aerobic exercise, can reduce the chance of serious heart disease or dying from it. The benefits of exercise contributes to health can be noted if performed moderate physical activities, and are most evident in sedentary people who change their habits and become more active. Activities such as walking, cycling regularly or perform four hours per week of physical activity, reduce the risk of heart disease. (...)
3.2. Obesity and overweight
To keep the weight there must be a balance between energy spent and energy consumed. Obesity occurs when you consume more than it spent during a certain period of time. It is thought that obesity is a direct result of the changes that have occurred in our environment, including the availability of labor-saving tools, motorized transport, sedentary entertainment such as watching television and easier access to high-calorie foods at a lower price. (...)
3.3. Adult Diabetes
The incidence of type 2 diabetes has increased rapidly. Often attributed to an increase in obesity, although compelling evidence exists to show that inactivity is also a risk factor.
According to studies, people are more active than the risk of developing diabetes is 30-50% lower than their sedentary peers. It has been proven that exercise slows or possibly prevent glucose intolerance and diabetes become is also beneficial for people who already have been diagnosed with diabetes. There are some interesting studies have shown that exercise such as walking or cycling, three times a week for 30-40 minutes, can make small but significant improvements in glycemic control (blood sugar) in diabetics.
3.4.
cancer appears to be physically active reduces the risk of developing certain cancers, and that moderate to vigorous activity is the best way to protect yourself. For example, physical exercise reduces the risk of developing colon or rectal cancer by 40-50%. Physical activity may also have an impact on other types of cancer, but there is not sufficient evidence to prove it.
3.5. Improvement of bone and muscle
Exercising regularly can be beneficial for disorders and diseases that affect muscles and bones (such as osteoarthritis, low back pain and osteoporosis). Doing sport helps strengthen muscles, tendons and ligaments and bones denser. Physical activity programs are designed to improve muscular endurance, which have proved useful in helping older adults maintain balance, which can be helpful in reducing falls. (...)
3.6. Improving mental conditions
Numerous studies have shown that physical activity reduces clinical depression and can be as effective as traditional treatments such as psychotherapy. If exercise is done regularly for several years also reduces the risk of depression recurrence.
has also been shown that physical activity improves psychological health in people without mental disorders. There are hundreds of studies that have documented improvements in subjective health, mood and emotion, as well as self-perception of body image and physical self-esteem. (...)
4. What is the cost of inaction?
The human body is designed to move, and so a sedentary lifestyle can result in illness and even death premature. In a review of 44 studies found that adults who performed moderate physical activity, especially during middle age and beyond, are twice as likely as sedentary people to avoid early death and severe disease development. The level of health benefits similar to those achieved by quitting smoking, and today it is recognized that inactivity is a risk factor in heart disease. (...)
5. What risks are associated with physical activity?
There is no action that no risks, and exercise is no exception. For example, the possibility of suffer a sudden cardiac death during physical exertion is multiplied by 5 for persons in good shape and 56 in people in bad shape. It also increases the risk of injury, especially in the feet, ankles and knees, when exercising or strenuous sports. (...)
6. How much physical activity do we need?
For many years, physical educators adopted training to improve cardiovascular health, which involved quite vigorous exercise in which we worked with large muscle groups for at least 20 minutes straight, with a high intensity (equivalent to 60 -80% of maximum heart rate). Unfortunately, it was noted that this level of exercise was too intense for most people, which remained inactive.
The most recent recommendations in the U.S. and the UK is that they engage in physical activity with moderate levels of intensity. Is thought to be much easier for a greater percentage of the population do moderate physical activities like brisk walking, and that such exercises can be reasonably incorporated into daily routines and is less physically demanding. (...)
The recommendations of the Quebec Declaration on Physical Activity, Health and Welfare (Quebec Consensus on Activity Statesman natural, Health and Well-Being) provided useful guidelines on physical activity.
7. Conclusions
When people become more active, it reduces the risk that they might have heart disease, some cancers and diabetes, and they can control their weight better, increase their tolerance for physical work and improve the health of your muscles and bones. They are also more likely to improve their quality of life and psychological health. Physical activity can not only add years of life, but is also accumulating evidence that add life to years.
Physical inactivity is an epidemic across Europe. Leading authorities from around the world have accepted the evidence of life associated with various diseases and inactive physical and mental disorders. At present, it seems that the situation is rather worse. The costs in terms of human suffering, lost productivity and health care are high. The solution is deceptively simple. Have to move more and more frequently. But unfortunately, it is difficult for most people, especially those who would benefit most, as middle-aged adults and the elderly, to become more active, if not taken any action.
Nurturing physical activity requires the concerted action of several agencies that help people reduce their sedentary lifestyle and increase the performance of physical activities, and to change the environment to encourage people to be more active. National governments, regional and local authorities have to work with planners and transport planners, schools, workplaces and health authorities to encourage more activities such as walking, cycling and sports activities. In turn, each person is responsible for reviewing and re-evaluate their priorities, to achieve lead a lifestyle that includes more physical activity per day. 
1 . Introduction
2. What is meant by physical activity?
3. What are the benefits of physical activity?
1. Heart disease and stroke
2. Obesity
3. Diabetes
4. Cancer
5. Bone and muscle health
6. Mental health
4. What is the cost of inaction?
5. What risks are associated with physical activity?
6. How much physical activity do we need?
7. Conclusions
1. Introduction
In the struggle for weight control and general good health, it makes much of the type and amount of food and beverages consumed. Less attention has been paid to the amount of energy we would spend if we were physically active. But the two are closely linked. Unlike our ancestors, we no longer need to use too much energy to find food. Due to technological advances, motor transport, automation and labor-saving machinery, most people have fewer opportunities to expend energy. It has been shown that approximately 70% of the population in Western countries is not active enough to enjoy good health and weight maintenance.
2. What mean physical activity?
Physical activity, exercise, fitness - all these terms are commonly used to refer to the physically active. Yet, in scientific terms, may have slightly different meanings. The most commonly used terms are defined in the following table.
Definitions related to physical activity:
Physical activity is the total energy consumed by the movement of the body. Includes daily routine activities such as housework, go shopping, work. Exercise
Movements planned and designed specifically for fitness and good health. Sports
physical activity carried out as a competition that is governed by rules. In many European countries the term covers all types of sports exercises and physical activities during leisure time.
Physical Fitness Series
attributes such as strength, mobility and strength required to perform physical activities.
Physical activity refers to the total energy expended to move. The best physical activities are daily activities, which involve moving the body, as walking, cycling, climbing stairs, doing housework, going shopping, and most of them are an inherent part of our routine.
On the contrary, exercise is a planned and deliberate effort, at least in part, to improve physical fitness and health. May include activities such as brisk walking, cycling, aerobics and maybe some active hobbies such as gardening and competitive sports. (...)
3. What are the benefits of physical activity?
Increased physical activity has many rewards, including reduced risk of certain diseases and conditions and improving mental health.
3.1. Heart disease and stroke
Coronary heart disease is the leading cause of death in Europe. Lead active lifestyles, with a moderately high level of aerobic exercise, can reduce the chance of serious heart disease or dying from it. The benefits of exercise contributes to health can be noted if performed moderate physical activities, and are most evident in sedentary people who change their habits and become more active. Activities such as walking, cycling regularly or perform four hours per week of physical activity, reduce the risk of heart disease. (...)
3.2. Obesity and overweight
To keep the weight there must be a balance between energy spent and energy consumed. Obesity occurs when you consume more than it spent during a certain period of time. It is thought that obesity is a direct result of the changes that have occurred in our environment, including the availability of labor-saving tools, motorized transport, sedentary entertainment such as watching television and easier access to high-calorie foods at a lower price. (...)
3.3. Adult Diabetes
The incidence of type 2 diabetes has increased rapidly. Often attributed to an increase in obesity, although compelling evidence exists to show that inactivity is also a risk factor.
According to studies, people are more active than the risk of developing diabetes is 30-50% lower than their sedentary peers. It has been proven that exercise slows or possibly prevent glucose intolerance and diabetes become is also beneficial for people who already have been diagnosed with diabetes. There are some interesting studies have shown that exercise such as walking or cycling, three times a week for 30-40 minutes, can make small but significant improvements in glycemic control (blood sugar) in diabetics.
3.4.
cancer appears to be physically active reduces the risk of developing certain cancers, and that moderate to vigorous activity is the best way to protect yourself. For example, physical exercise reduces the risk of developing colon or rectal cancer by 40-50%. Physical activity may also have an impact on other types of cancer, but there is not sufficient evidence to prove it.
3.5. Improvement of bone and muscle
Exercising regularly can be beneficial for disorders and diseases that affect muscles and bones (such as osteoarthritis, low back pain and osteoporosis). Doing sport helps strengthen muscles, tendons and ligaments and bones denser. Physical activity programs are designed to improve muscular endurance, which have proved useful in helping older adults maintain balance, which can be helpful in reducing falls. (...)
3.6. Improving mental conditions
Numerous studies have shown that physical activity reduces clinical depression and can be as effective as traditional treatments such as psychotherapy. If exercise is done regularly for several years also reduces the risk of depression recurrence.
has also been shown that physical activity improves psychological health in people without mental disorders. There are hundreds of studies that have documented improvements in subjective health, mood and emotion, as well as self-perception of body image and physical self-esteem. (...)
4. What is the cost of inaction?
The human body is designed to move, and so a sedentary lifestyle can result in illness and even death premature. In a review of 44 studies found that adults who performed moderate physical activity, especially during middle age and beyond, are twice as likely as sedentary people to avoid early death and severe disease development. The level of health benefits similar to those achieved by quitting smoking, and today it is recognized that inactivity is a risk factor in heart disease. (...)
5. What risks are associated with physical activity?
There is no action that no risks, and exercise is no exception. For example, the possibility of suffer a sudden cardiac death during physical exertion is multiplied by 5 for persons in good shape and 56 in people in bad shape. It also increases the risk of injury, especially in the feet, ankles and knees, when exercising or strenuous sports. (...)
6. How much physical activity do we need?
For many years, physical educators adopted training to improve cardiovascular health, which involved quite vigorous exercise in which we worked with large muscle groups for at least 20 minutes straight, with a high intensity (equivalent to 60 -80% of maximum heart rate). Unfortunately, it was noted that this level of exercise was too intense for most people, which remained inactive.
The most recent recommendations in the U.S. and the UK is that they engage in physical activity with moderate levels of intensity. Is thought to be much easier for a greater percentage of the population do moderate physical activities like brisk walking, and that such exercises can be reasonably incorporated into daily routines and is less physically demanding. (...)
The recommendations of the Quebec Declaration on Physical Activity, Health and Welfare (Quebec Consensus on Activity Statesman natural, Health and Well-Being) provided useful guidelines on physical activity.
7. Conclusions
When people become more active, it reduces the risk that they might have heart disease, some cancers and diabetes, and they can control their weight better, increase their tolerance for physical work and improve the health of your muscles and bones. They are also more likely to improve their quality of life and psychological health. Physical activity can not only add years of life, but is also accumulating evidence that add life to years.
Physical inactivity is an epidemic across Europe. Leading authorities from around the world have accepted the evidence of life associated with various diseases and inactive physical and mental disorders. At present, it seems that the situation is rather worse. The costs in terms of human suffering, lost productivity and health care are high. The solution is deceptively simple. Have to move more and more frequently. But unfortunately, it is difficult for most people, especially those who would benefit most, as middle-aged adults and the elderly, to become more active, if not taken any action.
Nurturing physical activity requires the concerted action of several agencies that help people reduce their sedentary lifestyle and increase the performance of physical activities, and to change the environment to encourage people to be more active. National governments, regional and local authorities have to work with planners and transport planners, schools, workplaces and health authorities to encourage more activities such as walking, cycling and sports activities. In turn, each person is responsible for reviewing and re-evaluate their priorities, to achieve lead a lifestyle that includes more physical activity per day.
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