CTE = Chronic Traumatic Encephalopathy

NFL Brain Collector Shows Violence in Slices of Gray Matter – Bloomberg.com

Healthy tau helps strengthen the neurons in the brain, like steel reinforcements in a concrete bridge. Repetitive trauma can lead to a change in tau, making it clump like tangles of yarn. The more tangles, the more the communication between cells is hampered. Functions such as memory and anger control can disappear; dementia and death can follow.

CTE is a unique pathological condition, according to Stern. The postmortem diagnosis of Alzheimer’s requires the presence of deformed tau and another protein, beta amyloid. The diagnosis of CTE requires only the presence of deformed tau.

How to Be Happy

How Adults Achieve Happiness – BusinessWeek

Our findings were in many cases unexpected but clear-cut. There is an incredibly high correlation between people’s happiness and meaning at work and at home. In other words, those who experience happiness and meaning at work tend also to experience them outside of work. Those who are miserable on the job are usually miserable at home.

The implication is unmistakable. Since work and home are very different environments, our experience of happiness and meaning in life appears to have more to do with who we are than where we are. Rather than blaming our jobs, our managers, and our customers—or our friends, family members, and communities—for our negative worklife experience, we might be better served by looking in the mirror.