BAAA-haha. Sorry but sometimes science is way too fun.
So some people might be familiar with the way your brain is mapped in terms of body parts typically being located in very predictable places on your brain’s physical layout. If so, skip the next paragraph.
The jist of it is that all along your brain, the human body is laid out. If you open someone’s skull and stimulate a particular part of the brain with an electrode, people will feel it in very specific parts of the body. And it’s always the same part of the body.
Now if someone loses, let’s say, a foot, they lose their foot. What they don’t lose is the part of their brain that is responsible for feeling the foot. So the foot part of the brain is up there chillin’ with nothing to do. No stimulation. This results in the phenomenon known as a ‘ghost limb’. The foot is gone, but the piece of brain responsible for the foot doesn’t know what’s going on. And here’s where it gets freaky (and for the foot, literally freaky).
When there is a part of the brain that lies unstimulated, whether due to the limb being removed or the nerve connection being severed, those neurons that were responsible for that part of the body begin an amazing process. The neurons don’t just die and wither away, they re-tool themselves, in a sense, looking for stimulation. And they do so in the most logical way possible, they take a look’see at what’s around them and start giving a hand.
And in the foot’s case, guess what’s right next door…
On the map of the brain (go ahead and google it), neurons for the foot are mapped right beside those of the genitals. So when people get their foot severed, those foot neurons start helping out the genital neurons and ‘become’ genital neurons. And that’s why there are many documented cases of people losing their feet and then reporting, after a while, that their orgasms feel more intense. BAAA-haha.
This may also explain foot fetishes. Thank you science.