4. Alien Hand Syndrome
“The left hand doesn’t know what the right hand is doing” is actually true for some people. Alien Hand Syndrome (AHS) s a rare neurological disorder that causes your hand to move without your knowledge or control. It is common for the hand to reach out and grab things against the owner’s wishes, and there have even been instances where those with this syndrome have been awoken to their hand trying to strangle themselves. Often one must use the healthy hand to restrain the rogue extremity.
Alien Hand Syndrome stems from trauma to the brain, usually after brain surgery or a stroke. The area of the brain that is damaged, as well as the dominant hand, determines which subtype of AHS one is inflicted with.
There is currently no treatment for Alien Hand Syndrome; the only way to counter it is to keep the hand busy by giving it an object to hold.
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