@CNN: One concussion could increase the risk of developing Parkinson’s disease, according to new research in veterans https://t.co/tWVVm12sUO https://t.co/35lnTuxwgC

@CNN: One concussion could increase the risk of developing Parkinson’s disease, according to new research in veterans https://t.co/tWVVm12sUO https://t.co/35lnTuxwgC