Throughout the world as a whole, many people are overweight or obese. Far more people in the world, especially the developing world, are obese than ever before. The main cause of the overweight and obesity epidemic in the world is the abundance of unhealthy food. Human beings evolved much as other animals. They eat as much food as possible when food is abundant because they are expecting a period of famine to come at some point. In the distant past, those periods of famine could last for days or weeks so humans evolved to crave very filling foods with lots of fat and carbohydrates. Now that food is in abundance in the developed world, those famines never set in; however, the desire to consume large amounts of carbohydrates and fats has not changed.
Far and away the most prominent reason for gaining unwanted weight is diet. Generally, weight gain and weight loss is considered to be about 80% your diet and 20% your level of activity. That is largely overblown but the sentiment is accurate. Your diet is the most significant element of your weight. If you are eating large amounts of unhealthy foods, you will gain weight; even if you are eating healthy food, you can still gain weight if you are overeating. For example, there is nothing inherently unhealthy about fruits. In fact, fruits are very good for you; they’re packed with vitamins and minerals. They’re also packed with natural sugars, which are the type of thing that humans have evolved to crave. If you eat large amounts of fruit without burning off those excess carbohydrates, you will gain weight. The obesity problem among youths in Singapore is especially bad and there are many reasons for it beyond nutritional reasons.
The formula for losing weight is fairly simple. Calories are units for measuring energy; one calorie is the amount of energy needed to raise one gram of water by one degree Celsius at one atmosphere of pressure. They are used as energy for your body. So, the formula for losing weight is simply burning more calories than you consume through food. Many children in Singapore and around the world are obese because they are consuming high amounts of calories and are not burning them off.
It’s very difficult to be active enough to fight the effects of a high-calorie diet but it definitely helps. Activity levels are not the only reason that children are obese. Many of them are born with a genetic predisposition to obesity that is exacerbated by their diet and activity.
Human beings have evolved with many different traits. Some people have a genetic predisposition towards obesity. In truth, this is a predisposition to store energy as fat very efficiently. In the past, this would have been a very desirable trait as it would have helped them stay healthy during periods of famine. Now, it is a predisposition towards obesity that has to be countered with healthy diets and exercise. These are just a few of the causes of the obesity epidemic.