The risk of having asthma for those who were obese was twice that of someone with normal weight.
The elderly and people of Asian descent are more likely to be at normal weight when diagnosed, for example.
CNN: Obesity paradox: Why being thin with diabetes is dangerous
She was vomiting, had bad diarrhea and weighed just over 8 pounds, 40% the normal weight for a 1-year-old.
He has no explanation for why the drug didn't affect the diets of 12 control subjects of normal weight.
However, they said the findings also highlighted the importance for women of being normal weight when they become pregnant.
For most, but not all, maintenance of a normal weight and a good diet will prevent development of type 2 diabetes.
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The analysis showed that for every normal weight person with asthma, there were 1.5 people with asthma who were overweight or obese.
Diabetes diagnosed during pregnancy, known as gestational diabetes, is influenced by hormonal changes and normal weight gain and usually goes away after the baby is born.
The studies, which were conducted between 1990 and 2011, included 2, 625 people who were recently diagnosed with diabetes, about 12% of whom were at normal weight.
CNN: Obesity paradox: Why being thin with diabetes is dangerous
If these people have excess weight from belly fat but are still just normal weight (instead of overweight as you would expect) what does that mean?
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"Doctors' concern about normal weight people with diabetes should potentially be even higher than that for their counterparts who develop diabetes at a heavier weight, " she says.
CNN: Obesity paradox: Why being thin with diabetes is dangerous
He said he knows athletes who lose muscle, not fat, when they fall off their exercise regimen, and then are counterintuitively reclassified from overweight to normal weight.
But obese patients who did not stick to these healthy lifestyle recommendations still had a lower risk of death than normal weight patients who smoked or were inactive.
To eat normally and live at a normal weight a person has to be able to tolerate her feelings as the world dishes out challenges, sometimes severe challenges.
However, more than half of those in the obese category were in class 1, and these individuals had no increased risk of dying compared to normal weight individuals.
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So, what sets the disease apart in normal weight people?
CNN: Obesity paradox: Why being thin with diabetes is dangerous
Professor Davey Smith said that children of lower incomes tended to be normal weight until they reached young adulthood and that this was when the difference became more marked.
Twenty one people, who were all normal weight, were shown pictures of calorie packed foods while they were positioned in a magnetic resonance imaging (MRI) machine at Imperial College London.
It is certainly a significant figure, but it means little unless it is compared with the cost of care for people of normal weight and for those who are underweight.
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The comic wanted to be entirely free of the drug - which he had used to treat pulmonary fibrosis, an inflammatory lung disease - and be back to his normal weight by March.
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Onge's study may be a step toward answering that "chicken-or-the-egg question" because it included only people of normal weight and therefore eliminated the influence of existing overweight or obesity, says Gina Lundberg, M.
While obese people had a higher risk of death -- particularly those whose BMI was 35 or more -- overweight people had a 6% lower risk of death than those of normal weight.
Further, to account for the possibility that the normal weight patients could have been losing weight due to other underlying illnesses, the researchers excluded people who died within two years of their diabetes diagnosis.
CNN: Obesity paradox: Why being thin with diabetes is dangerous
What they found is that, compared to normal weight individuals, those in the overweight category had a lower risk of dying of any cause, and those in the obese category had an elevated risk.
FORBES: How Useful Is Body Mass Index In Predicting Long-Term Health?
The CCL study also showed that executives with BMIs of 25 and under (indicating a person of normal weight) got higher ratings for interpersonal skills and task performance than peers who had BMIs over 25.
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They found that, as with other studies, patients with cardiovascular disease who were obese or overweight were less likely to die over the next seven years than people of a normal weight who had the condition.
The study, which was presented Wednesday at an American Heart Association conference in Atlanta, included 13 male and 13 female volunteers between the ages of 30 and 45, all of whom were healthy sleepers of normal weight.
Body Mass Index (BMI) is defined as the ratio of weight (in kg) to height (in meters) squared and is an inexact measure of body fat, though it supposedly establishes cutoff points of normal weight, overweight, and obesity.
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Gaining too much weight is a major contributor to Type 2 diabetes, since excess fat cells can affect the way the body breaks down glucose and produces insulin, but some normal weight individuals can develop the disease as well.
CNN: Obesity paradox: Why being thin with diabetes is dangerous
The issue here is that BMI is a clunky measure that does not distinguish muscle from fat, and those who interpreted this study ignored the meaning of people being normal weight while having excessive belly fat weight (ie deficient muscle).
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