THE EXTERNAL PHENOMENA of aging are known to all of us. We can expect graying hair, bone loss, fatigue or memory difficulties.
But what actually happens to our brain as we get older, and what goes wrong when aging develops into a neurological disease like Alzheimer’s or Parkinson’s? This is a primary focus of neurological specialists around the world working to map the brain and unlock its many mysteries.
Previous animal studies have shown that molecular changes in the composition of lipids and proteins in brain cells affect brain function and may cause cognitive impairment. Magnetic resonance imaging, or MRI, scans allow us to look into the human brain in a non-invasive manner and learn about the changes that occur in it with age.