The "yo-yo" weight is a common phenomenon among women still in search of a thin ideal. But generally, the successive periods of diets are less effective and at each stop of the plan, weight regain is increasingly important. A recent U.S. study * shows that also leads to lower "good" cholesterol, which is opposed to the fatty deposits in the arteries and protects against cardiovascular disease.
The consequence of a succession of restrictive diets are too strict
If you "starve" the body adapts by reducing energy expenditure metabolism. Somehow, he learned to operate in "economic". Where the body is again sufficiently powered, there is no immediate resumption of energy expenditure but some careful storage reserves in preparation for further periods "lean". Hence the inevitable weight gain immediately after cessation of the scheme, especially as the hardships have been so frustrating that people begin to eating anything.
Adverse effects on cholesterol
If dieting rebounds by weight, the weight rises slowly but surely, the rate of "good" cholesterol, them, follow suit, but down ...
The data published in the Journal of the serious American College of Cardiology from a study conducted on 485 women, 130 had a history of "yo-yo" weight (19% of women had at least three times in their lives oscillations in weight between 4.5 and 8.5 kg, 6% between 9 and 22 kg and 2% over 22 kg.). All were under examination for chest pain suggesting coronary artery disease (fatty deposits narrowing of coronary arteries nourishing the heart). On average, the "women yo-yo" had a rate of "good" cholesterol decreased by 7% compared to those with stable weight. On the other hand, larger women were also those who had weight changes of the largest and had the lowest levels of good cholesterol, HDL cholesterol, considered to play an important cardioprotective role.
And risk of cardiovascular disease potentially increased
If the mean difference in HDL cholesterol is minimal here (- 7%, 4 mg / dl), it still represents a risk factor for cardiovascular significant. There is an inverse relationship between the concentration of HDL-cholesterol and the incidence of cardiovascular complications.
This study does not allow to conclude a direct causal link between the "yo-yo" weight and CHD. It would, therefore necessary to follow a larger number of women on a time probably long enough, the arteries "fouling" fortunately slowly.
1 comments:
That's why it's not good to diet in extreme. Better reduce your food intake slowly and then try to eat better. The longer you diet until it becomes a habit, it wouldn't be that hard to lose that weight.
Crash diet or relying on miracle treatment (pill, juice, etc) on the other hand does not develop a healthy habit so you risk the same thing to happen again (yoyo diet/weight).
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