Earleen Fisher, an editor and writer whose career across five decades with The Associated Press gave her a front-row seat to ...

Parkinson's disease is a progressive neurodegenerative disorder, which is characterized by motor symptoms such as tremor, rigidity, slowness of movement and problems with gait. Motor symptoms are ...

Degeneration of this structure is characteristic of Parkinson's disease. In late 2018, Japanese neurosurgeons at Kyoto University Hospital implanted reprogrammed stem cells into the brain of a ...