Obesity occur when total energy intake is greater than the total energy expended, which is the energy the child or teenager's uses up during physical exercise or activity. There are quite a few factors to consider when looking at the problem.


Family history: If there is a family history of obesity the chances are high the teenager will also develop obesity... With parents over prepare food, imbalance diet or both parents are working and no time to prepare food, all this may lead to develop poor eating habits for the teenagers when they left to their own devices.


Food: As the times pass, the way we prepare food and the frequency has varied, and it is much different from the way our ancestors do. Back then, our ancestors cooked from scratch, but now fast food restaurants and quick fix meals are available everywhere, simply just dial a number will do. Some research studies show that teenagers will eat an average of four meal of fast food per week. This will lead to the list of causes is unhealthy eating habits and poor food choices.


Stress: Teenagers are under tremendous peer pressure at school and in their everyday lives. There may be stressful events in the teenager's life such as death, divorce, or even abuse. Many teenagers react to stress by overeating. On top of that, it may also result in not only other peoples putting them down, but also his/her own self-esteem taking a hit. It has been found that a large percentage of overweight teenagers are thought to be clinically depressed. While depression can often cause overeating, usually being obese can also cause depression. Depression can lead to low self-esteem, and if the problem left untreated, it can lead to teenager suicide.


Medical & Psychologically: There may also be medical problems which require the teenagers to take medication such as steroids, although medical problems represent only about 1% of teenager obesity. Overweight teenagers in particular, may not be as affected physically as psychologically with them becoming targets of ridicule, taunts, as well as poor treatment meted out to them by other teenager at school as well as in the community.


Lack of exercise: Today's lifestyle is much different from ten year ago, with modern technology and fast food offers little to improve one's health. Nowadays, the teenagers are so enthusiasm in spending whole day and night in front of computers, game box or any gaming console playing their love game. Some teenagers can sit and watch television while text messaging their good friends. Many teenagers now own a car so the chance for walking is also reduced.


Obesity in teenagers is a growing problem that has become worse in recent times, and the rates are growing every year. The America is a top leader in obesity in teenagers. It is high time that we do something to take this under control.