Researchers from Japan's Fukuoka University have found a little bit of ping pong can go a long way for Parkinson's patients. In a recent study of patients with mild to moderate Parkinson's, weekly ping pong sessions combined with stretching led to "significant improvements" in the subjects completing tasks like dressing themselves, walking and getting out of bed. Ping pong, which demands impressive hand-eye coordination, has been previously found to help with other diseases, including Alzheimer's and dementia.