Everybody has felt that prickling sensation in the feet or hands. It’s termed as “pins and needles” because it feels as if someone is lightly scraping your skin time and again with thousands of tiny little pointed objects.
The feeling itself is accurately discussed as “paresthesia,” and the very harmless sort described directly above is quite sensibly identified as “temporary parenthesis.” But what is really going on beneath your tingling skin? The biology working in the background of those pins and needles is actually quite up-front.
There are nerves all over our body, biological information superhighway whose business is to relay data between the rest of the body and the brain. If we put too much weight on one of our limbs – something that’s fairly simple to do as ape appendages are extended and lanky – one could momentarily pinch the nerves that pass through them. In the meantime, they’re also applying a little excessive pressure on the blood vessels that supply blood to those nerves, like pressing a garden hose to stop the flow of water.
This causes our mind to be devoid of the data it expects from those nerve packs, and the nerves themselves are not getting the oxygen rich Blood they require from our heart. At that juncture, when that pressure is relieved, blood flows back into our limbs and the nerves commence firing data to and fro from the brain.
Starting a minute or two after the compression was applied, and unfailingly remaining for three to four minutes, was a numbness mixed with a sensation that was called “compression tingling”. They are described as “buzzing,” or as “a faint comfortable soda-water sensation”, or “a acceptable light tingle.” Some sensed as if they had “ants running inside their skin.”
The next stage, which typically begins 10 minutes afterwards, was defined as a “velvety cold numbness”. That sensation lasts as long as the compression on the limb’s nerve and the blood stream remains.
Finally, after the pressure is released, begins the third phase: this is identified as “release pricking”. This is the part generally discussed as “pins and needles.”
Release pricking is characteristically more agonizing than the initial two stages, but the emotive facet of the event is more often defined as interest or curiosity. It aches, but only in the flesh. The sensation sooner or later subsides, but people are habitually in capable of pin pointing precisely at what point their skin senses return to standard.
Pins and needles may be an irritating reality for us, but it’s worthy to recollect that it could be very, very worse. Many of us only have to get a tiny amount of blood flowing and the irritation just goes away.