There may also be frequent falls. Body stiffness in the arms or legs, or tremors may also occur. Parkinson's mask (blank stare, emotionless look on face), stooped posture, drooling and runny nose may be present. REM Sleep Behavior Disorder (RBD) is often noted in persons with Lewy Body Dementia.
The newton (abbreviation and symbol: N) is the unit of force in metric system (SI), named after Isaac Newton. The newton is equal to the amount of force needed to accelerate a one kilogram mass at a rate of one meter per second squared. 1 newton (N) = 0.224808943 pounds force (lbf) = 0.101971621 kilogram-force (kgf) Report an error on this page.
Perhaps that is where the number came from. However if that is the case then reports of 2000 pounds of pressure are greatly in error. A Newton actually equals a 0.22 pounds of force or a bit more than a fifth of a pound. So a 2000 Newton force is actually approximately equal to a 450 pound force. This is a lot of force, the equivalent our putting a pressure equivalent to the weight of two football linemen on the top jaw, but a lot less than 2000 pounds of pressure.