Parkinson's Disease

Some tiny clusters of brain cells grown in a lab dish are making big news at this week's Society for Neuroscience meeting in San Diego.

Known as "minibrains," these rudimentary networks of cells are small enough to fit on the head of a pin, but already are providing researchers with insights into everything from early brain development to Down syndrome, Alzheimer's and Zika.

Phoebe Flanigan

With a vibrant live music scene, a bustling tech sector and a top-flight university, Austin seems like an oasis for young people.

However, the seemingly youthful Texas capital isn't wasted on the young. 

The Austin-Round Rock area has the fastest growing population of people between ages 55 and 64, and the third-fastest growing for those 65 and over, according to U.S. Census data. 

An organization called Power for Parkinson's is offering those affected by the disease a chance to step forward into an active, healthy life.