Obesity has become one of the major causes of many diseases. Experts say that an adult person that has BMI (body mass index) 30 or bigger are considered to be obese (however, for teenagers and children are used different measures). Some of the diseases that are associated with obesity are: high blood pressure, atherosclerosis, diabetes, stroke, some cancers and cardiovascular disease.
How can someone become obese?
Someone becomes obese when that person has too much excess fat in his or her body. This fat is stored in our bodies when the amount of energy that we consume (this energy can be consumed through food or drinks) is bigger than the amount of energy that we use (our bodies burn a lot of energy every day, even during rest periods, but significantly more during exercises). The amount of energy that we have consumed, but not burned is stored in our body in form of fat.
What are the main causes of obesity?
There are many factors that can be causes of obesity. One research has even shown that children and teenagers that were overweight (or obese) in their younger years tend to become obese adults.
Some of the known factors that cause obesity:
It does not matter what your genetic background is, if you eat more food than your body needs, you will store fat. Over time, it can add up and you become obese.
Some of the experts claim that the main cause of obesity is our modern way of life – we use cars instead of walking, we work and entertain ourselves in front of our television or computer, so there is no need to be physically active as it was needed in the past.
Some studies have shown that socioeconomic factors are to blame – according those studies, people who have lower incomes and lower level of education are more likely to get fat or be obese. The main reason for this is the fact that these people don’t have the time or funds to take part in physical activities and to eat healthy food (which is often more expensive than fast food).
The food that we eat has changed – we are now offered food that is easier and faster to make and it costs less, but it is also poor when it comes to nutrients.
For most of the people the absence of physical activity is the number one cause of obesity. Almost all people who are obese tend to have sedentary lifestyles.
Genetics – genetics are on this list, because researches have been able to link obesity with some genetic predispositions, but this is only true for a really small number of people.
Birth factors – one of the latest researches has shown that persons that had poor nutrition while in utero, had low birth weight or their mother smoked during pregnancy are more likely to be obese later in life. Furthermore, infants that were breastfed are less likely to become obese than those who were fed with formula.