And in 2003-2013, it reached 27."In other words, the current findings do not mean that being overweight is protecting you from death, far from it rather, many confounding factors may give the current result and we know from many other studies that being overweight or obese does increase mortality risks, in the same way that it increases risk for many other conditions.Compared to four decades ago, that would mean adding 30 pounds (14 kg) to the frame of the a person who stands six-feet tall, or 19 pounds (nine kg) to the frame of someone five-foot-five.Health authorities have long warned of the risks of being overweight, including diabetes and cardiovascular disease.woman who weighs 143 pounds (65 kilograms).83 meter) tall man who weighs 170 pounds (77 kilograms), or a five-foot-five (1.6.Being on the heavier side may not be as dangerous as it was in the 1970s, at least when it comes to the risk of dying, according to a study on Tuesday.

Nordestgaard said the current findings suggest "a need to revise the categories presently used to define overweight, which are based on data from before the 1990s.By 1991-94, the optimal BMI had risen to 24."Compared to the 1970s, today's overweight individuals have lower mortality than so-called normal weight individuals," said Borge Nordestgaard, clinical professor at the University of Copenhagen and Copenhagen University Hospital."The report was based on more than 100,000 people in Denmark.5 and 24.9 is considered overweight, while 30 or higher is obese."However, experts cautioned that the biological mechanism behind the new findings remains poorly understood, and the results should not be interpreted to mean that people can cease caring about what they eat.The optimum ratio of weight and height known as body mass index or BMI is now on the upper side of the healthy range, according to the report in the Journal of the American Medical Association (JAMA).This would be electromagnetic flowmeter Manufacturers the equivalent of a six-foot (1.A BMI of 25-29.Study spanned three groups, or cohorts, whose risk of dying for any reason was examined in 1976-78, 1991-1994, and in 2003-2013 Researchers found that obese people in the 1970s were more likely to die than normal weight people.

"In recent years, as populations become more obese and with wider availability of cheap preventative medications many more such individuals are likely to be better treated for abnormal blood pressure, abnormal cholesterol and, if also present, type 2 diabetes, leading in turn to lower death risks," said Sattar, who was not involved in the study.Researchers also found that obese people in the 1970s were more likely to die than normal weight people, but this association disappeared in the 2000s.In the 1970s, the optimal BMI for the lowest risk of death was 23.Currently, doctors define the normal range for BMI calculated by weight in kilograms divided by height in meters squared as between 18.According to Naveed Sattar, professor of metabolic medicine at the University of Glasgow, the study is "of interest" but dos not merit changing advice on obesity and preventing extra pounds."The reason for this change is unknown."The increased risk of all-cause mortality associated with obesity compared to normal weight decreased from 30 per cent 1976-78 to 0 percent in 2003-13," said principal investigator Shoaib Afzal, of Copenhagen University Hospital in Denmark.