The lack of cortisol causes the condition known as

Animals will lose energy because it is converted to heat

Answerslows down;

Answer lack of education;                   lack of protection                  lfailure of getting tested

Personality is a mixture of characteristics/qualities that form an individual's distinctive persona. it can be influenced by environmental and biological factors; one's culture is a most important factor that shape personality. extreme mood swings, unstable relationships, distorted self-image, impulsive/risky behavior, explosive anger, chronic feelings of sadness/emptiness, etc. these could indicate that someone could have a personality disorder.