Nov 6, 2023 · Cataplexy happens when strong emotions (like laughter, excitement or anger) trigger sudden, brief muscular weakness while you’re awake. It’s one of the main symptoms of …

Cataplexy is a sudden and transient episode of muscle weakness accompanied by full conscious awareness, typically triggered by emotions such as laughing, crying, or terror. [1]

Jul 15, 2025 · Episodes of cataplexy can vary in severity. Less severe episodes involve momentary sensations of weakness in a few muscles, such as knees buckling, the head …

Dec 10, 2025 · Symptoms of cataplexy (including narcolepsy) usually develop over several months and last a lifetime. Depending on the severity of the cataplexy, some people may have …

Nov 15, 2024 · When narcolepsy causes a sudden loss of muscle tone, it is known as cataplexy (KAT-uh-plek-see). This can be triggered by a strong emotion, especially one that causes …

Sep 2, 2020 · Cataplexy happens when your muscles suddenly go limp or significantly weaken without warning. Here's why it happens, other symptoms, and more.

Jun 8, 2025 · Cataplexy is a sudden, transient episode of muscle weakness triggered by strong emotions such as laughter, surprise, or anger, most often occurring in the context of …

Cataplexy, a physical feature of narcolepsy, is characterized by transient episodes of voluntary muscle weakness precipitated by intense emotion. Subjective descriptions of cataplexy can …

Aug 22, 2023 · During an episode of cataplexy, an individual is awake but temporarily paralyzed. Cataplexy is worsened by fatigue and strong emotion and affects males and females equally.

Feb 6, 2025 · Cataplexy is a key symptom of narcolepsy, a sleep disorder, and involves sudden, uncontrollable episodes of muscle weakness or paralysis while the person is awake. During …