Discovery Channel :: News – Human :: Serious Study: Immaturity Levels Rising:

The adage “like a kid at heart” may be truer than we think, since new research is showing that grown-ups are more immature than ever. Specifically, it seems a growing number of people are retaining the behaviors and attitudes associated with youth. As a consequence, many older people simply never achieve mental adulthood, according to a leading expert on evolutionary psychiatry.