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Many weight - loss and obesity - bar beliefs thought to be gospel truth are really false or yet unproven , harmonize to a discipline published in the Jan. 31 issue of the New England Journal of Medicine .
Some of these false assumptions might even storm medical Dr. : chest - feedingprotects a shaver against fleshiness … Physical education in schooltime forestall childhood corpulency … Gradual weight loss is good than rapid loss … You burn hundreds of calories during sex … These are just some of theobesity mythsidentified by an international team of doctors led by David Allison at the University of Alabama at Birmingham .
Sex has its benefits, but burning calories isn’t one of them, say doctors who bust seven pervasive obesity myths.
These so - ring facts are permeant on web site , in the newsworthiness spiritualist , and even in the scientific literature despite contradicting scientific evidence , the researchers said . The team identified a amount of seven myths , six additional presumptions not yet test true or false , and nine evidence - supported fact that are relevant for heavy public health policy .
Myth 1 : Small changes in energy intake or consumption will bring on large , long - term exercising weight changes . This seemingly legitimate opinion is based on a normal that a passing or profit of one pound get from drop or consuming 3,500 large calorie . The problem is that this apply only to the myopic full term . Additional pounds are hard and harder to molt once you begin recede weight . That ’s because , in part , as you lose weight your body has lower energy requirement , meaning it can maintain its weight ( without any exit ) on a low calorie count . [ 7 Diet Tricks That Really put to work ]
Myth 2 : Setting naturalistic goals in corpulency treatment is of import because otherwise patient become defeated and suffer less weight . How can you argue with this logic ? Well , according to Allison , data intimate that mass do better with more challenging goal . imagine big to turn a loss big .
Sex has its benefits, but burning calories isn’t one of them, say doctors who bust seven pervasive obesity myths.
Myth 3 : Gradually lose system of weights is good than promptly losing pounds because prompt weight losses are more potential to be regained . This myth , in all probability dating back to the sixties , has no biologic base , the researchers suppose . In fact , studies reveal thatpeople who lose more weight rapidlyare more likely keep off the pounds even several age later .
Myth 4 : Patients who palpate " quick " to drop off weight are more probable to make the involve lifestyle change . Being " ready " does n’t suffer . But study have shown that the academic degree of set or willingness to diet does n’t auspicate the magnitude of weight loss or adhesion to a curriculum .
Myth 5 : Physical - Department of Education course of instruction , in their current form , bring an important role in reducing or prevent childhood fleshiness . Studies really have shown , perhaps surprisingly , that increase the number of days that phys - ed is offered does not reducechildhood obesity . The research worker speculate this is because the type of utilisation — in terms of frequency , intensiveness and duration — is n’t enough to promote sustained weight loss . Or , rotund kids who call for it most are n’t moving in pace with other students .
Myth 6 : titty - feeding protect the breastfed offspring against future fleshiness . Breast - feeding has many positive effects for the child , such asincreased IQand exemption , but obesity protection is not among the benefits . Although the notion is passionately defend , big studies in recent years have found that one ’s white meat - feed in account is not a epitope for corpulency .
Myth 7 : One instalment of sex can burn up to 300 calories per somebody . Well , mayhap it ’s deserving a try . Allison ’s group munch the numbers and compute that a 150 - pound adult male would combust about 250 calories per 60 bit of vigorous and uninterrupted sex activity . Studies reveal , however , that most sexual intercourse lasts only six minutes , which translates to 20 kilocalorie burned — not much more than sitting on a chair and watch television . [ 10 Most Surprising Sex Statistics ]
Among presumptions yet to be proven true or sour , the researchers allege , are that snack contributes to exercising weight gain ; that on a regular basis eating ( and not skipping ) a healthful breakfast protects against weight addition ; that establish pavement and walking and biking trails dilute obesity rate ; and that yo - yo dieting is associated with premature end .
Among proven dieting fact , the researcher said , are the head that example improves wellness regardless of whether system of weights is lost , and that genetics is not destiny — that is , anyone can conserve a sizeable weight .
Not that baneful ?
publish the same day as the Allison - pass paper , in the current issue of the American Journal of Medicine , obesity investigator Charles Hennekens of Florida Atlantic University reported on what some consider to be another fleshiness myth : that fleshiness is not that deathly .
" Unless Americans lose weight and increase their levels of physical activity , cardiovascular disease will remainthe leading killer in the U.S. , " Hennekens said .
Recent written report have devote the picture that carrying a few extra pounds can be healthy . Allison explained that the misconception might stanch from the fact that certain population , such as older people , can tolerate extra weight . The superfluous weight can be beneficial if that older soul break a disease such as cancer , in which the patient lose weight during the treatment .
This does not involve that being overweight throughout your life is healthy , Allison said . Hennekens bestow that childhood corpulency is of finical business organisation , increase the risk of developingtype 2 diabetesand heart disease before age 30 .
fortuitously , as Allison ’s group has help bare , diet — particularly those that slim energy intake — very effectively boil down weight unit , and environmental changes such as exercise can facilitate prevent weight gain .
Christopher Wanjek is the source of a new novel , " Hey , Einstein ! " , a comical nature - versus - nurture taradiddle about raising clone of Albert Einstein in less - than - ideal setting . His column , Bad Medicine , appear regularly on LiveScience .
