Obesity among young and elderly people has emerged up as a matter of huge concern. Sadly, the percentage of obesity or overweight is increasing at epidemic rate making a huge part of world-population suffering from it. Here the article covers information about obesity, the causes and the prevention. If you have also been experiencing the same problem of excess in weight, do not miss itCauses leading to obesity: • Imbalanced energy-level:- Standard energy balance in the body is important managing healthy weight. Lack of energy is most often a cause of fatness. Here, the term imbalance signifies energy obtained by the foods or drinks and energy emitted by physical activities. • Medication- Certain medicines can put one gaining weight after the treatment. They medicines having such adverse effects may involve category of corticosteroids, antidepressants, seizure, and sedative hypnotics. They influence the rate at which body burns calories and helps maintaining body-mass. Increase in appetite and storage of extra water in the body are main consequences.