"Many older people simply never achieve mental adulthood, according to a leading expert on evolutionary psychiatry." <http://makeashorterlink.com/?N17D5235D>http://makeashorterlink.com/?N17D5235D or http://dsc.discovery.com/news/2006/06/23/immature_hum.html?category=human&guid=20060623110030 "People Who experience mood swings, fear, voices and visions"