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Exercise and Physical Activities – Health Benefits
Author: peterhutch   | Posted: 04-04-2008 | Comments: 0 | Views: 5 | Rating: (50)  (?) 
Regular physical activity provides enormous health benefits. It helps reduce heart disease, cancer, type 2 diabetes and many other diseases and metabolic conditions. Regular fitness exercise is also highly beneficial for weight reduction and weight maintenance, and may improve brain chemistry to reduce depression. By contrast, health studies that have monitored the wellbeing of large groups of people over many years clearly show that inactivity significantly increases the risk of overweight, obesity and chronic diseases.
New brain cell development, improved cognition and memory. Exercise stimulates the formation of new brain cells. Researchers found that the areas of the brain that are stimulated through exercise are responsible for memory and learning. For instance, older adults who engage in regular physical activity have better performances in tests implying decision-making process, memory and problem solving.
Heart Disease and Stroke. Daily physical activity can help prevent heart disease and stroke by strengthening your heart muscle, lowering your blood pressure, raising your high-density lipoprotein (HDL) levels (good cholesterol) and lowering low-density lipoprotein (LDL) levels (bad cholesterol), improving blood flow, and increasing your heart's working capacity. Optimizing each of these factors can provide additional benefits of decreasing the risk for Peripheral Vascular Disease.
Cholesterol lowering effect. Exercise itself does not burn off cholesterol like it does with fat, however, exercise favorably influences blood cholesterol levels by decreasing LDL (bad) cholesterol, triglycerides and total cholesterol and increasing HDL (good) cholesterol.
Physical activity helps to reduce body fat by building or preserving muscle mass and improving the body's ability to use calories. When physical activity is combined with proper nutrition, it can help control weight and prevent obesity, a major risk factor for many diseases.
Exercise has also been found to increase levels of "brain-derived neurotrophic factor" (BDNF). This substance is thought to improve mood, and it may play a role in the beneficial effects of exercise. BDNF's primary role seems to be to help brain cells survive longer; so this may also explain some of the beneficial effects of exercise on dementia
Among the symptoms of depression are feelings of worthlessness and hopelessness. Physical exercise often leads to a sense of accomplishment that can increase good feelings about yourself when you need it most. Exercise can also help you feel better about your appearance and your self-worth. Meeting small goals is an excellent way to start boosting self-confidence with the feeling of accomplishment you take in completing challenges.
The health benefits of exercise are explicable in terms of favourable physiological, psychological, and biochemical changes and improvements in function. Their scope is greater than has been supposed. Motivating sedentary people to pursue these benefits is not straightforward. They are reluctant to undertake even moderate exercise, and they become immediately aware of their limited tolerance for physical work and the discomfort that it provokes. It takes several weeks of regular exercise to see an improvement in their capacity for effort and for there to be a training effect.
It was found that exercise had the strongest effect on boosting patients' physical function, such as improving their ability to climb stairs or walk a certain distance. It improved patients' body composition, increasing the percentage of lean muscle mass to total weight. Exercise reduced some symptoms, such as nausea and vomiting and pain, and modest improvements were seen in fatigue, mood and quality of life. Given the relatively small benefits for exercise identified by their analysis, the researchers suggest combining exercise with other inventions designed to improve cancer patients' physical and mental health.
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