Dr Mario Masellis and Dr. Sean Udow from the Sunnybrook Health Sciences Centre, University of Toronto, Canada, look at the potential association between orthostatic hypotension and cognitive impairment in \u03b1-synucleinopathies such as Parkinson\u2019s disease, dementia with Lewy bodies and multiple system atrophy. \n\nRead the review published by JNNP here: http://jnnp.bmj.com/content/early/2016/09/09/jnnp-2016-314123.abstract.