In the modern world, people are increasingly obese and are developing diseases like hypertension and diabetes. They also suffer from various ailments like joint and muscular pain, skin problems, and high blood pressure. They are also at increased risk of developing certain cancers.

There are many factors that contribute to the development of obesity. Some people are born with a genetic defect that causes them to be born obese, and their body then maintains a constant calorie balance, resulting in their continued weight gain. Others may be predisposed to gain weight due to a number of factors like physical inactivity, unhealthy food, and a lack of sleep. The key is that the body needs to be in a constant state of homeostasis, where the rate of calorie intake is equal to the rate of energy expenditure. This results in the person gaining weight steadily.