LONDON – Dynamic exercise, in healthy and old women, can reduce the risk of breast cancer by 30 percent, researchers said.

A study conducted on more than 30,000 post-menopausal women showed that, intense physical activity ranging from housework to jogging protected against breast cancer even among those who don’t have a higher risk. The effect was clearest among lean women.

“We know that being overweight puts women at increased risk of breast cancer. What our study shows is that even among women without this increased risk, if they exercise they can get some benefit.” said Michael Leitzmann, who led the study.

Breast cancer is the leading cause of cancer deaths among women worldwide, according to the American Cancer Society. The group estimates about 465,000 women died of breast cancer globally in 2007 and 1.3 million new cases were diagnosed.

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NEW YORK – Being obese may faint a man’s hope of becoming a father, even if he is healthy superficially, a new study concludes.

Researchers came to know that among 87 healthy men ages 19 to 48, obese were less likely to be a father. Precisely, they exhibit hormonal variation that leads to a reduced reproductive capacity, the researchers report in the journal Fertility and Sterility.

As compare to thinner men, obese had reduced levels of testosterone in their blood, as well as poorer levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), both hormones are essential for reproduction.

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