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Update Date: 2010/10/14 (Central News Agency reporter Tang Yaling, São Paulo, 13th special report)
Data released by the Brazilian Institute of Geography and Statistics (IBGE) at the end of August showed that among Brazilians aged 20 and above, 48% of women and 50.1% of men were overweight, while obesity rates were 16.9% and 12.5%, respectively.
The survey pointed out that, in addition to heart disease, type 2 diabetes, and other obesity-related illnesses, overweight and obese individuals also face issues of infertility and sterility.
According to reproductive medicine expert Juliano Scheffer, obese individuals produce more hormones than those with normal weight, which disrupts overall bodily functions, including the reproductive system.
For men, a Spanish study presented earlier this year at the European Society of Human Reproduction conference showed that obese men produce approximately 8 million fewer sperm than men of normal weight.
Another study from the University of Catania in Italy also revealed that overweight and obese men have more poor-quality sperm compared to men of normal weight, impairing the sperm's ability to fertilize an egg and thereby reducing fertility.
As for women, Scheffer noted that obesity can lead to excessive estrogen storage or the accumulation of metabolic byproducts in androgens, causing ovulation disorders.
A study by the Harvard School of Public Health in the U.S. indicated that if a woman's body mass index (BMI) at age 18 is higher than the ideal range, she is more likely to experience infertility, regardless of whether her uterus and ovaries function normally.
Another study from the University of Valencia in Spain showed that overweight women have a higher risk of miscarriage compared to women of normal weight. Starting from a BMI of 29, for every increase of 1 kg/m², a woman's chance of pregnancy decreases by 5%.
So, does losing weight alone increase the chances of pregnancy? Theoretically, under normal circumstances, yes. Carlos Izzo, head of obstetrics and gynecology at São Paulo General Hospital, stated that before treating any woman for infertility, the hospital ensures her BMI is reduced to below 30 through changes in diet and regular exercise.
Of course, losing weight quickly is not easy, so doctors sometimes resort to extreme measures, including prescribing appetite suppressants or even performing gastric bypass surgery to control the appetite of obese individuals, as obese women tend to respond more sluggishly to ovulation-stimulating drugs.
Furthermore, being overweight or obese poses a significant health risk to pregnant women themselves, requiring more careful prenatal care than women of normal weight, as obese women face higher risks of miscarriage, hypertension, and diabetes during pregnancy. 991013
Source: http://tw. news. yahoo. com/ article/ url/ d/ a/ 101014/ 5/ 2ex60. html
Obese Couples More Prone to Infertility
Data released by the Brazilian Institute of Geography and Statistics (IBGE) at the end of August showed that among Brazilians aged 20 and above, 48% of women and 50.1% of men were overweight, while obesity rates were 16.9% and 12.5%, respectively.
The survey pointed out that, in addition to heart disease, type 2 diabetes, and other obesity-related illnesses, overweight and obese individuals also face issues of infertility and sterility.
According to reproductive medicine expert Juliano Scheffer, obese individuals produce more hormones than those with normal weight, which disrupts overall bodily functions, including the reproductive system.
For men, a Spanish study presented earlier this year at the European Society of Human Reproduction conference showed that obese men produce approximately 8 million fewer sperm than men of normal weight.
Another study from the University of Catania in Italy also revealed that overweight and obese men have more poor-quality sperm compared to men of normal weight, impairing the sperm's ability to fertilize an egg and thereby reducing fertility.
As for women, Scheffer noted that obesity can lead to excessive estrogen storage or the accumulation of metabolic byproducts in androgens, causing ovulation disorders.
A study by the Harvard School of Public Health in the U.S. indicated that if a woman's body mass index (BMI) at age 18 is higher than the ideal range, she is more likely to experience infertility, regardless of whether her uterus and ovaries function normally.
Another study from the University of Valencia in Spain showed that overweight women have a higher risk of miscarriage compared to women of normal weight. Starting from a BMI of 29, for every increase of 1 kg/m², a woman's chance of pregnancy decreases by 5%.
So, does losing weight alone increase the chances of pregnancy? Theoretically, under normal circumstances, yes. Carlos Izzo, head of obstetrics and gynecology at São Paulo General Hospital, stated that before treating any woman for infertility, the hospital ensures her BMI is reduced to below 30 through changes in diet and regular exercise.
Of course, losing weight quickly is not easy, so doctors sometimes resort to extreme measures, including prescribing appetite suppressants or even performing gastric bypass surgery to control the appetite of obese individuals, as obese women tend to respond more sluggishly to ovulation-stimulating drugs.
Furthermore, being overweight or obese poses a significant health risk to pregnant women themselves, requiring more careful prenatal care than women of normal weight, as obese women face higher risks of miscarriage, hypertension, and diabetes during pregnancy. 991013
Source: http://tw. news. yahoo. com/ article/ url/ d/ a/ 101014/ 5/ 2ex60. html