Shiver Me Timbers

From Wikipedia, the free encyclopedia

Post-micturition convulsion syndrome, also colloquially known as pee shivers, piss shivers, piss quiver, quiver shivers, or the shiver shake, is a phenomenon in which one feels a shiver running down the spine following urination.[1] The shiver can produce a brief twitch, which is a form of myoclonus. It should not be confused with micturition syncope, a feeling of faintness following passing urine.
To date, despite years of discussion and theorizing, there is no agreed-on explanation of the phenomenon[2] and no medical research into it. However, it has been mentioned occasionally in columns, and in one Internet poll, where about 83% of males and 58% of females reported experiencing it. By 6 July 2007, more than 24,000 males and more than 1,200 females had responded to the poll on the syndrome.

Myoclonus (pronounced /maɪˈɒklənəs/) is brief, involuntary twitching of a muscle or a group of muscles.The most common time for people to encounter them is while falling asleep (hypnic jerk), but myoclonic jerks are also a sign of a number of neurological disorders. Hiccups are also a kind of myoclonic jerk specifically affecting the diaphragm. Also when a spasm is caused by another person it is known as a "provoked spasm". Shuddering attacks with babies also fall in this category.
Myoclonic jerks may occur alone or in sequence, in a pattern or without pattern.

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Echoes: No Visual Image Required.
I just like the sound of "myoclonic jerks"! Yea? Well you're a hypnic jerk!