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Weight loss
In the context of physical health, weight loss is the process of losing body weight, typically by losing fat. To achieve weight loss, more calories must be expended than taken in. This can be achieved by reducing the amount of food consumed, increasing physical activity or a combination of the two. For healthy weight loss, most experts recommend a combination of healthy eating patterns and regular physical exercise. Other methods of losing weight include use of prescribed or herbal drugs or chemicals that decrease appetite and/or increase physical activity, such as fenfluoramine, ephedra, nicotine or cocaine. Surgical options are also available. Liposuction removes targeted area of fat and tissue while bariatric surgeries can result in large weight loss by reducing the size of the stomach or reducing the absorption of food energy. Surgical and drug options may have serious side effects.
A loss of weight can also be the symptom of some mental or physical diseases or disorders, such as anorexia nervosa or the cachexia associated with cancer or AIDS.
Weight loss can help to relieve symptoms of a variety of conditions, such as diabetes, back pain and disorders of the spine, pain in the knee or legs, and many heart conditions. For healthy weight loss, a physician should be consulted to develop a weight loss plan that is tailored to the individual.
Guide to Fats
Fats are a group of chemical compounds that contain fatty acids. Energy is stored in the body mostly in the form of fat. Fat is needed in the diet to supply essential fatty acids, substances essential for growth but not produced by the body itself.
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Physical exercise
Physical exercise is the performance of some activity in order to develop or maintain physical fitness and overall health. Frequent and regular physical exercise is an important component in the prevention of some of the diseases of affluence such as cancer, heart disease, cardiovascular disease, diabetes and obesity.
Exercises are generally grouped into three types depending on the overall effect they have on the human body:
- Flexibility exercises such as stretching improve the range of motion of muscles and joints.
- Aerobic exercises such as walking and running focus on increasing cardiovascular endurance.
- Anaerobic exercises such as weight training or sprinting increase short-term muscle strength.
- Physical exercise is extremely important for maintaining healthy weight; building and maintaining healthy bones, muscles, and joints; promoting physiological well-being; reducing surgical risks; and strengthening the immune system.
Proper nutrition is as important to health as exercise. When exercising it becomes even more important to have good diet to ensure the body has the correct ratio of macronutrients whilst providing ample micronutrients, this is to aid the body with the recovery process following strenuous exercise.
Proper rest and recovery is also as important to health as exercise, otherwise the body exists in a permanently injured state and will not improve or adapt adequately to the exercise.
The above two factors can be compromised by psychological compulsions (eating disorders such as exercise bulimia, anorexia, and other bulimias), misinformation, a lack of organization, or a lack of motivation. These all lead to a decreased state of health.
It should be noted that Delayed Onset Muscle Soreness can occur after any kind of exercise, particularly if the body is in an unconditioned state relative to that exercise.
Also read our Nutrition and Weight Loss Questions and Answers.
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