04 December 2017

Obesity is more dangerous than we thought

Scientists have learned about new threats posed by excess weight

RIA News

Scientists at the University of Bristol have found that excess weight affects the mortality rate to a much greater extent than previously thought. The results of the study are published in the International Journal of Epidemiology.

The university staff analyzed the effect of high and low body mass index (BMI) on the human body. The study involved 60 thousand children and parents.

Scientists have analyzed the relationship between the body weight of patients, their physical condition and mortality in families.

Together with the Norwegian University of Natural and Technical Sciences, scientists from Bristol have found out how the mortality of parents is related to their body weight and the body weight of their children. The study showed that being overweight increases the risk of death much more significantly than previously thought.

Previous studies have failed to capture the "pure" relationship between obesity and mortality. The problem was that the scientists' conclusions were influenced by other human-borne diseases.

This scientific work is based on the fact that the BMI of parents and children are genetically related. At the same time, the child's indicators are not affected by the illness of the parents. Taking into account the BMI of children and the mortality rate of parents, the staff of research centers were able to identify the direct impact of obesity on the risk of death.

This study refutes the myth that a small excess of body weight can not greatly affect human health.

"We found that previous studies underestimated the impact of being overweight on mortality, and our findings confirm the current recommendations for maintaining a BMI in the range of 18.5 to 25," said Dr. David Clark, one of the authors of the study (in a press release, the Harmful effects of being overweight underestimated – BM).

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