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According to a recent report on the website of Newsweek, human beings have become fatter and fatter in the past 50 years. Scientists believe that this is largely due to our environment. A new study published in the British Medical Journal warns that the so-called 'obesity' environment will increase our chances of unhealthy body mass index (BMI) from our womb to our death.
Researchers believe that our current environment is an 'obesity' environment, including variables such as how close grocery stores are, how easy it is for people to use safe sidewalks and parks, and toxins and microorganisms also play a role.
According to the World Health Organization, the number of obese people in the world exceeded 650 million in 2016. To find out why global obesity has almost tripled since 1975, Norwegian scientists studied data on 118959 people regularly collected in North trendelag from 1963 to 2008. These people are between the ages of 13 and 80, and they can represent the entire Norwegian population.
The researchers found that the average BMI of Norwegians increased significantly from the 1960s to the 1990s, and began to rise from the mid-1980s to the mid-1990s. The BMI of people born after 1970 is much higher than that of people born before.
Moreover, people with a genetic predisposition to obesity have the largest increase in BMI. In the 1960s, the BMI of men with the highest genetic risk was 1.2 higher than that of men with the lowest risk; By the first decade of this century, the gap had risen to 2.09. Among women, the gap was 1.77 in the 1960s; By the first 10 years of this century, it was 2.58. Even considering weight related factors such as smoking, this study is tenable.
The researchers believe that the increase of BMI can be explained by the interaction between 'obesity' environment and individual genetic characteristics.
They also pointed out that although eating too much and not exercising enough are the reasons for the prevalence of obesity, the 'underlying reason is likely to be a complex combination of globalization, industrialization and other social, economic, cultural and political factors.'
Maria middot of the Department of public health and nursing, Norwegian University of science and technology; Brandquist said: 'for those who are genetically obese, the current environment may make it more difficult for them to choose the right lifestyle. However, although we cannot change our genes, we can affect our environment. Changing the human living environment may be an important means to deal with the obesity epidemic. "