Richard Davidson, a University of Wisconsin psychologist. He discovered that people who have greater activity in the left frontal lobe, compared to the right, are by temperament cheerful; they typically take delight in people and in what life presents them with, bouncing back from setbacks as my aunt June did. But those with relatively greater activity on the right side are given to negativity and sour moods, and are easily fazed by life's difficulties; in a sense, they seem to suffer because they cannot turn off their worries and depressions. In