This one sounds like it's from the pages of science fiction, and promises to make a lot of people feel perhaps a little uncomfortable.
The Telegraph (UK) reports that a German man has followed through on an idea he's had for over 20 years, to introduce a valve system into the reproductive system of human men, to allow them to effectively switch their fertility off with the flick of a switch.
The inventor, Clemens Bimek, once watched a documentary about contraception when the – conceptually simple, practically very difficult – idea came to him. He is at present the only person to have undergone the procedure, having done so reportedly under local anaesthetic, so that he could guide his urologist through the design.
Excuse me, I'm going to need a moment here... Alright, let's continue.
From the Telegraph report:
The tiny valves are less than a inch long and weigh less than a tenth of an ounce. They are surgically implanted on the vas deferens, the ducts which carry sperm from the testicles, in a simple half-hour operation.
To be honest, the design seems pretty elegant to me. The mechanism involves a mechanical subdermal switch placed beneath the skin of his scrotum.
The idea behind doing this instead of a reversible vasectomy is, simply, because a vasectomy doesn't always end up being reversible. We should note that urologists still have reservations about this new system, of course, but it's pretty exciting that someone's taking an engineering approach to a medical issue like male contraception.
So, next time you feel turned on, make sure you're completely clear on what that means. These switches would introduce a whole new meaning to that idiom.
This post was written by Rowdy de Graaf. You can find his post here: http://www.sciencedump.com/content/switch-your-testicles