Sex Toys That Shock Your Lady Parts Actually Exist—But Are They Safe?

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They can be safe, says Melissa Farmer, Ph.D., a pain and sex researcher at Northwestern University—if you keep it below the waist (the currents may interfere with heart rate, breathing, and brain function) and follow the manufacturer’s instructions. And if you’re uncomfortable, stop! Pain is your body’s way of saying this does not hurt so good.

This article was originally published in the November 2016 issue of Women’s Health, on newsstands now.