Dr. Gilbert Bernier, a University of Montreal scientist... said age is the primary risk factor for diseases such as macular degeneration, Parkinson's and Alzheimer's.

we actually found a gene that regulates the speed of aging in the brain. If you mutate that gene, you have a hyper-accelerated aging process of the neurons in the brain. We think that maybe we can do the reverse . . . if we increase its activity, maybe we can slow down the aging process