Man invents implantable switch to turn on/off male birth control

if you want an entirely unsolicited opinion - a vasectomy, in combination with a long term sexually exclusive relationship, is wonderful beyond reckoning. Lower failure rate than basically anything else, and consequence-free unprotected sex for the rest of your life. I wouldn’t count on it to be reversible, but once you’re certain that you are at or above your lifetime quota for reproduction, it’s a tiny cost for excellent benefit

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