 U.S. President Joe Biden may have Parkinson's disease, Russian media reported, with reference to local therapist Pavel Vorebov. Joe Biden's recent fall on the stage can cause visual impairment, problems with joints and other neurological diseases such as Parkinson's disease or Alzheimer's syndrome said Pavel Vorebov. He said of the Board of Directors of the Scientific Society of Moscow City Therapists. The therapist also said that President Biden's fall on the stage in Colorado on Thursday may have been caused by carelessness, reminding that eyesight of elderly people often deteriorates with age and they tend not to see the objects under their feet. Yet another cause of the fall may have been the problem with his joints stressed Vorebov.