People with certain sleep behavioral disorders are at a higher risk of developing neurodegenerative diseases, reports the Elite Daily.

The results of this particular study, carried out by neuroscientist John Peever from the the University of Toronto, Canada, focused on people diagnosed with a rare dream disorder called REM sleep behavior disorder (RBD).

The crucial difference here is people with RBD execute the violence they’re experiencing in their dreams. While most of us remain totally still even during the most vivid of dreams, those with RBD tend to kick, punch, scream, or even leap out of bed in a terrifying rage.

And, according to sleep expert Carlos Schenck, “it’s not a matter of if, but when” people affected by RBD will develop a neurodegenerative disease, such as dementia or Parkinson’s.

Read the rest at