The 2005 AHA Guidelines for CPR and ECC did note that if the rescuer was unwilling or unable to provide ventilations, the rescuer should provide chest compressions only. Hands-Only CPR or CPR with both compressions and rescue breaths.
In psychology, the Big Five personality traits are five broad domains or dimensions of personality that are used to describe human personality, otherwise described as the five-factor model (FFM). The five factors are openness, conscientiousness, extraversion, agreeableness, and neuroticism.
What causes personality disorders? Research suggests that genetics, abuse and other factors contribute to the development of obsessive-compulsive, narcissistic or other personality disorders. In the past, some believed that people with personality disorders were just lazy or even evil. But new research has begun to explore such potential causes as genetics, parenting and peer influences: Genetics. Researchers are beginning to identify some possible genetic factors behind personality disorders.