The development of obesity in any person occurs when energy intake exceeds its costs over time. Very minor, but constant excess energy leads to a marked accumulation of fat in the body. Thus, the use of only 5% of "extra" calories can contribute to the accumulation of about 5 kg of fat per year. If within 30 years the consumption exceeds the cost of just 8 calories per day, it can lead to an increase in body weight of 10 kg. These figures reflect the average weight gain during 30 years (from 25 to 55 years) adults.
Obesity can not even comprehend the predisposition of people - too much influence on consumption of modern civilization and all. The wide prevalence of obesity over the past 20 years can be attributed to many factors, and is also the result of the influence of lifestyle. Rather, here the role played by the increase in energy consumption and inadequate physical activity. Energy consumption is increasing mainly due to eating out. In the presence of networks of fast food appeared a convenient opportunity to "quick bite", and, moreover, the number of diverse and delicious food. Technological advances have led to a decrease in daily physical activity, as he now enjoys a convenient technique, drives a car or other vehicle, sedentary and insufficiently active socially.
Obesity has become a major health problem in most industrialized countries. Painful, (morbid) obesity becomes truly alarming proportions because of the inevitable development of comorbid conditions that are in direct causal relationship with excess body weight. In the United States, obesity is the cause of approximately 300,000 deaths per year. Russia, along with rapid economic development and becomes a "disease of the developed society," among whom obesity is not the last.