Mark first got diagnosed with PSP (Progressive Supra Nuclear Palsy) in 2015, although we now believe that he could have been exhibiting symptoms of the disease in 2014 or earlier. This is a rare disease (1-3 people in 100,000 get diagnosed with this disease and may people are either misdiagnosed or diagnosed late in the disease process). Although PSP falls under the umbrella of a "Parkinsonism" or Parkinson's+ disease, the evolution and symptoms of the disease can be very different. The disease progression is very accelerated and more closely resembles ALS (Lou Gehrig's disease). There is currently no cure for PSP and an unfed need for more aggressive research. We hope you'll check out extensive information on the disease and how to help/donate at www.curepsp.org (
http://www.curepsp.org/).