A debilitating condition in which a person suddenly feels weak and collapses at times of strong emotion such as during laughter, anger, fear, or surprise. In so collapsing, people with cataplexy may injure themselves. For example, laughter and other emotions may trigger a reflex that can bring many of the muscles of the body to the point of collaps [..]

"the state of an animal when it is feigning death," 1883, from German kataplexie, from Greek kataplexis "stupefaction, amazement, consternation," from kataplessein "to strike [..]

n. a sudden but temporary loss of muscle, usually triggered by some intense emotions such as surprise, terror, anger, or laughter. The condition may either be localized, meaning there could be a sudde [..]

The sudden loss in muscle tone that result in the whole body collapsing. It is temporary and can be brought about by extreme emotional stimulus. See narcolepsy- narcolepsy syndrome.

Cataplexy refers to sudden, brief and transient episodes of muscle weakness accompanied by both total conscious awareness and bouts of emotion such as laughter, terror, crying, etc. Approximately 70% [..]

Sudden loss of muscle tone, leading to collapse of the body without loss of consciousness.

a sudden loss of motor tone and strength.

Sudden paralysis of some or all muscles brought on by laughter, anger, fright, or strong emotions; a hallmark of narcolepsy.

sudden, dramatic decrement in muscle tone and loss of deep reflexes that leads to muscle weakness, paralysis, or postural collapse. Usually caused by outburst of emotion: laughter, startle, or sudden [..]

Cataplexy is a period where the body loses all voluntary muscle tone.

A condition characterized by transient weakness or Paralysis of somatic musculature triggered by an emotional stimulus or Physical Exertion. Cataplexy is frequently associated with Narcolepsy. During [..]

A condition characterized by transient weakness or paralysis of somatic musculature triggered by an emotional stimulus or physical exertion. Cataplexy is frequently associated with NARCOLEPSY. During [..]