One of the physicians quoted in the article is Gary J. Kennedy, MD, Director of the Division of Geriatric Psychiatry at Montefiore Medical Center in NYC and a professor in the Dept. of Psychiatry and Behavioral Sciences at Albert Einstein SMART XCollege of Medicine.To put the AMA article in better perspective, we asked Dr. Kennedy a few follow-up questions. Below you have his questions.Alvaro Fernandez (AF): Can you summarize how cognitive functions tend to evolve as we age?GK: Age also has the effect of amplifying differences between individuals. This is the result of variability in aging itself, freedom from or accumulation of illnesses and injury, and life style. The influence of genetics is largely exhausted by the 6 and 7th decades of life which means that habitual activities and social relationships have a larger and larger impact resulting in greater and greater variability between individuals.http://www.skinphysiciantips.com/smart-x/