We used to think that obesity is simply just an over weight condition caused by over eating. It isn’t correct as overweight is not necessarily obesity, particularly in muscular or large-boned individuals. A person is considered overweight if the bodyweight is less than 20% higher than it should be, if it’s over 20% then it becomes an obesity.
Obesity occurs when our body consumes more calories than it burns causing the accumulation of body fat excessively, so that person on a long-term basis.becomes grossly fat to the extent that it might have a negative effect on their health. It is usually caused by excessive food intake while lacking of physical activity, and genetic susceptibility caused the excess calories stored as fat or adipose tissue.
Obese people have a greater energy expenditure than their normal counterparts due to the energy required to maintain an increased body mass. It isn’t simply caused by overeating and under-exercising, resulting from a lack of will power and self-control. Obesity is a complex medical problem that involves qenvironmental, behavioural, and social factors. All these factors play a role in determining a person’s weight. A few obesity cases are caused primarily by genes, endocrine disorders, medications or mental disorder.
Obesity has been linked to a number of health complications, some of which are life-threatening, including cancer. Having a high ratio of body fat to muscle puts strain on our bones as well as our internal organs. It also increases inflammation in the body, which is thought to be a cause of cancer. The more obese a person is, the more likely they are to have medical problems related to obesity, such as high blood pressure, heart attack, stroke, diabetes, gallbladder disease, cancer, osteoarthritis and depression.
And actually obesity leads to much more than simple weight gain. Aside from the medical complications, obesity is also linked to psychosocial problems such as low self-esteem, discrimination, difficulty finding employment, and reduced quality of life.