Aging is a cumulative process. Aging well is a choice and attitude is critically important. (O’Brien, Mary, MD. Successful Aging. CA: Biomed General. 2007, pp 18-20)

The way in which you view life is directly related to the way in which your brain ages. Negative feelings /mindset can trigger high levels of stress hormones (e.g., cortisol and adrenaline) to flood the brain. Over time this can result in reduced brain mass and cognitive ability. (Giuffre, Kenneth, MD., with Teresa Foy DiGeronimo. The Care and Feeding of Your Brain. NJ: Career Press, 1999, p 235)