Jets great Mark Gastineau revealed in a radio interview Thursday with WOR’s Pete McCarthy he has been diagnosed with dementia, Alzheimer’s and Parkinson’s disease. The franchise’s all-time sacks leader, known for his colorful demeanor and hard-nosed play, said he believes his health issues are the result of his playing style and that new techniques could have prevented his diagnosis. “When my results came back, you know, I had dementia, Alzheimer’s and Parkinson’s,” Gastineau told McCarthy.