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Some people are overweight without damaging their health. And who is seriously ill, it is sometimes better off with some overweight than normal weight. It is from childhood to us stamped: do not eat too much and do not move too much, because that combination leads to obesity. And obesity, as well as everyone knows, in turn, leads to disease and premature death.


But is it? Paves obesity indeed always the way to heart disease, diabetes or cancer?
Not necessarily, according to a study published yesterday in the reputed European Heart Journal. People can quite obese, but still fit and healthy. If their body and their metabolic obesity to be, they have no greater risk of illness or premature death than people of normal weight, shows the largest study ever conducted into this matter.

Crucial is an efficient functioning of the metabolic system, according to researchers from the University of South Carolina. If that does well, and people in other words, no hypertension and no elevated cholesterol or sugar levels, you do not in themselves overweight problem.

Lung Function
Reaching that conclusion the researchers looked at the weight and blood levels of 43,000 Americans. Of these, over a third is obese. But nearly half of those 18,500 people turned out despite his obesity fine blood values: their cholesterol, blood pressure and sugar levels were completely normal.

Also effort testing, these subjects well. Their lungs and heart were well, and on average they were fitter and moved them over the other obese from the study. And thus was their risk of heart disease or cancer is not higher than that of people with normal weight, the researchers said. They found that doctors in their case need to be cautious and not too quick a diet or slimming pills should impose.

Paradox
A second study in the European Heart Journal sheds more light on the so-called obesity paradox. Who wants that once a person of heart disease among the members, they were less likely to die from them if he is overweight or even morbidly obese, than people of normal weight or underweight. The study, 64000 Sweden with a history of heart catch (angina) and / or a heart attack, ran from 2005 to 2008.

The researchers, led by Oskar Angeras of the University of Gothenburg, deem it unwise to overweight heart patients to advise you to go on a diet. There is no evidence that it improves their prognosis rather that it deteriorates. Previously, even figured out people on the dialysis could benefit from some extra fat stores like, people with advanced cancer.

Pad
How it is that (existing) overweight the chances of premature death in cardiac patients reduce, the Swedes do not know. Possible to generate the fat beneficial hormones or it acts just like a cushion and protects it eg hip fractures. Other possibility: by some cancers removing people quickly. What extra fat reserves may be useful to the disease cope?

The researchers emphasize that they do not argue for unbridled orgies or eats parties. But for people with a chronic illness it might hurt less than expected if they have a nest egg in the form of some fat on the hips or stomach, they write. Some people thrive on being overweight, and not all fat people live on a time bomb.