Men who weigh too much or too little have poor sperm quality, according to a new Danish study.

Overweight, underweight has effect
The study found that sperm counts and sperm concentration were 28,1 percent and 36,4 percent lower, respectively, in underweight men than they were for men of normal weight, the Associated Press reported. The same measures were 21,6 percent and 23,9 percent lower respectively in overweight men.

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"Low BMI can result from a 'healthy lifestyle' but may also be due to many chronic diseases," the authors wrote in the latest issue of the journal Fertility and Sterility.

Experts say they don't know why this is happening, but offered some guesses. "It may be an alteration in hormonal values," Dr Anthony Thomas Jr., a Cleveland Clinic urologist and president of the Society for Male Reproduction and Urology, told the AP. He was not involved in the study.

Drug to combat premature ejaculation
A separate study found that dapoxetine hydrochloride, the first oral drug developed to treat premature ejaculation, is safe and effective when prescribed as needed.

The study included 166 men who were randomly assigned to receive either 60-milligram or 100-mg doses of the drug, or a placebo. The men's sex partners measured the duration of sexual intercourse with stopwatches.

Further large-scale clinical trials of the drug are now being conducted.

It's estimated that premature ejaculation affects about 30 percent of men at some time in their lives. – (HealthDayNews)
 

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