AHS is often caused by brain injury or neurodegenerative illnesses, but there is not enough research to determine any consistent cause or why it occurs. “Alien hand is little investigated because it ...

Alien Hand Syndrome (AHS) is a rare neurological disorder distinguished by involuntary, seemingly purposeful limb movements coupled with a sensation of estrangement from the affected limb. This ...

Exploding head syndrome may sound like something out of a science fiction movie—but in fact it’s a very real sleep disorder. People with this sleep phenomenon are prone to experiencing loud and sudden ...