Thesis statement:

There are several causes and effects of obesity. The most common factors in the onset of obesity are lack of exercise, imbalance diet and genetics factor. Effects of obesity is directly linked to several life-threatening disorders, such as the beginning signs of heart disease and other health problems, distorts people's physical appearance and posture as well as the psychological effect.

Body paragraph 1: Causes

One of the main reasons of obesity is lack of physical exercise. Individuals who do not undergo physical exercise are at a greater risk of suffering from obesity. Another common cause of obesity is imbalance diet. Nowadays, people are consuming more and more junk food, and junk food contains more fat, sugar than essential minerals and vitamins. As a result, imbalanced diet become major factor for obesity. Genetics is also one of the reasons for obesity. Studies have shown that people can inherit a tendency toward obesity.

Body paragraph 2: Effect

Obesity has severe impacts. People who suffer from obesity usually have fatty deposits build up in arteries that supply blood to heart. As a result, the narrowed arteries can cause chest pain or a heart attack. Also, obesity is the major cause of type 2 diabetes. Obesity can cause resistance to insulin, consequently the blood sugar becomes elevated. The excessive fat tissue in the body need nutrients to live, as a result the blood vessels need to circulate more blood, this increases the load of heart. As a result, the person will face high blood pressure problem.

Body paragraph 3: Effect

Obesity will distorts people's physical appearance and posture. Obesity may cause spinal changes in some people due to the excess strain that is put on the supportive structures in the back. As a consequence, it change people's physical appearance and this can lead to back pain.As a result, it can lead to Hyperlordosis , which occurs when the back curves inward too much.

Body paragraph 4: Effect

Obesity induced psychological effects to obese people. Obese people have been found several times to have higher rates of depression. When they are sad, anxious or stressed, they tend to be overeating and this become a perpetual cycle of mood swing, overeating and weight gain. Obese people may have made attempt to lose weight, however, with little or no success. This result in discouragement and frustration among obese people. As a result, psychological state of obese people are unstable, and lead to dissatisfaction and depression.

Block organisation: Type A organisation since the effects are more significant than the causes.

Besides, like what you mentioned, causes of obesity are important however the effects are far more