Dan Ariely, from Predictably Irrational, has found that pain is best given in lots of small doses. People tend to remember the height of the pain, and not the t

Dan Ariely, from Predictably Irrational, has found that pain is best given in lots of small doses. People tend to remember the height of the pain, and not the time it lasted. Whether that result is transferable to emotional pain I don't know.