Sleep paralysis is "a condition where you feel paralyzed just before falling asleep or, more commonly, when you first wake up in the morning," says Kevin Walker, MD, the medical director of ...

Partial paralysis occurs when nerve signals between the brain and specific muscle groups become interrupted, resulting in weakness or inability to move certain body parts while others remain ...

The moment half your body stops responding to your commands ranks among the most frightening experiences imaginable. Whether you’re the one affected or witnessing it happen to someone else, ...

Vocal fold (or vocal cord) paralysis occurs when your vocal folds, the two bands of tissue in your larynx (voice box), stop moving. Usually, this occurs because one or both of the nerves that go to ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Baland Jalal lay in bed terrified ...

Do you often struggle to complete tasks? Do you frequently feel overwhelmed by your environment and find yourself easily distracted? If you have attention-deficit ...

Imagine waking up in pitch darkness paralyzed from head to toe. You try to scream but can’t. Suddenly you realize there is a ghost with bloody fangs hovering over you. Before you know, the creature ...