Double board-certified neurologist Dr. Russell Surasky has refuted claims that President Joe Biden has Parkinson’s disease, suggesting instead that he may suffer from “vascular dementia.” Dr. Surasky called for Biden to undergo neurological testing and an MRI to rule out vascular dementia, citing aspects of the president’s medical history as possible contributors.

In an interview, Dr. Surasky addressed Biden’s reported “cognitive decline” and criticized the president’s team for allegedly hiding any illness. He noted that Biden’s recent medical exam by his personal physician also found no signs of Parkinson’s.

Surasky observed that Biden walks with a “firm stride” rather than the typical shuffling gait of Parkinson’s and lacks other key symptoms like “unilateral resting tremor” and “cogwheel rigidity.”

He urged Biden to take part in an extensive neurological assessment covering motor skills and memory recall, along with an MRI scan to clarify any signs of vascular dementia.

Biden has a history of atrial fibrillation, which can reduce blood flow to the brain, and has also experienced two brain aneurysms, increasing the risk of vascular complications.