Paralysis: What It Is, Causes, Symptoms, Management Types What is paralysis? Paralysis occurs when you’re unable to make voluntary muscle movements A nervous system problem causes paralysis Nerves send signals to your muscles Those signals make your muscles move When you’re paralyzed, or have paralysis, you can’t move certain parts of your body
Paralysis: Why it happens and what your body’s trying to tell you Paralysis is when you lose the ability to move a part of your body—and it’s not because you’re tired or lazy It happens when something goes wrong in the communication lines between your brain, spinal cord, and muscles In paralysis the brain is hitting “send” but the body isn’t getting the message Paralysis can be temporary or permanent
Paralysis - Wikipedia Paralysis can occur in localized or generalized forms, or it may follow a certain pattern Most paralyses caused by nervous-system damage (e g , spinal cord injuries) are constant in nature; however, some forms of periodic paralysis, including sleep paralysis, are caused by other factors