According to the study, the BMI of the Norwegians has increased since 1963, gradually, considerably. A particularly significant increase was observed since the mid-eighties. Prior to that, the BMI was, on average, are still below 25. Then he reached in the course of the years, average values in the range of Overweight. This development is in line with WHO estimates, according to which in 2008, 64 per cent of Norwegians and 51 percent of Norwegians were overweight.
Differences in weight gain
The researchers, the people divided into five groups – from the largest genetic predisposition for Obesity, up to and including the lowest. A result of: a 35-year-old men in the sixties, with the largest slope for Overweight average of 1.20 higher BMI than men with the lowest had. In the zero years, the difference amounted to an average of 2.09.
Men with a predisposition for Obesity have increased over the 40 years so, on average, significantly more than those without such gene variants. In the case of a 35-year-old women, the BMI difference between the genes increased preloaded table and unloaded people on average from 1.77 to 2.58.
The significant differences in weight gain between people with and without a tendency to Obesity, the researchers on the Interplay of environment and genes.
Global Obesity Epidemic
Obesity is a worldwide Problem. The Rate of obesity has eight, according to the world health organization from 1975 to 2016 on a global, nearly tripled. In 2016, nearly 40 percent of adults were overweight and 13 percent obese.
“Our study cannot answer about the causes of the obesity epidemic,” says study leader Brandkvist. Useful a look back, as life in the sixties was, “as it is not so easy or even impossible to decide for such a unhealthy lifestyle,” she suggests. “What and how much we have eaten back then, how we slept and how much we have moved?”
Too much food, too little exercise
Their hypothesis is that the obesity epidemic is associated with too much food and too little exercise – both of which is also socially conditioned. In addition, toxins and microorganisms could have contributed to it. In an Editorial In the “British Medical Journal” suggest US scientists to look more to individual groups of people and to explore the individual causes of Excess weight better to keep track of instead of just population-wide strategies.
The world health organization recommends, in addition to a healthy diet for adults is 150 minutes of physical activity per week. In children, it should be an hour per day. Employers should offer healthy food and the possibility to practice sports.