Dementia pugilistica Dementia pugilistica, also called "chronic traumatic encephalopathy", "pugilistic Parkinson's syndrome", "boxer's syndrome", and "punch-drunk syndrome", is a neurological disorder which affects career boxers and others who receive multiple dazing blows to the head. The condition develops over a period of years, with the average time of onset being about 16 years after the start of a career in boxing. Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.