Researchers from the University of North Carolina at Chapel Hill report in the journal Reproductive Biology and Endocrinology that ultrasound, if used to zap testicles, can reduce sperm counts, indicating its chances to be used as a male contraception in the near future, reports ABC News.

A team of researchers spearheaded by James Tsuruta, assistant professor of paediatrics in the laboratories of reproductive biology at UNC Chapel Hill, found that ultrasound zaps can lower the sperm concentrations of semen in rats. Scientists used therapeutic ultrasound technology, one which is used by physical therapists for treatment of muscle injuries, notes the American broadcaster.

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