The effects of family and culture can substantially influence a person's personality, behaviors, beliefs and values, which correlate positively with life experiences in Part 1. Research has demonstrated the significance of family interactions on younger individuals' stress levels, personality, and behavioral traits. Young people imitate older people because they have yet to be independent and this process is considered an aspect of evolution, through increased physical fitness. Environmental factors such as biological and socio-cultural ones can also influence a child's personality. The culture you grow up in can influence your happiness, morality, mortality, behavior and, once again, your personality. Growing up and surrounding yourself with culture and all its associated subsets, including, but not limited to, religion, cuisine, traditions and cultural norms can have such effects. Research evidence will be provided to support the influence between family and culture on an individual's nature. Family The importance of family relationships for a child is explained in various studies that show their impact. Studies measuring different personality types in a family have shown a correlation of approximately 0.20 (Ahern et al.,). Twin studies have been conducted in which monozygotic twins, same zygote, and dizygotic twins, two zygotes, were subjected to a series of tests to capture their personality. The results show that monozygotic twins have a higher personality correlation than dizygotic twins; which means that personality is influenced by heredity (Ahern et al.,). Surprisingly, the sibling correlation is 0.23 while the sister-sister correlation is a shocking 0.32 (Ahern et al.,). Although children experience a positive and personal relationship with their parents; the a......half of the sheet......forming its environment (Part 1). Roulin said one's personality can change throughout one's life and that siblings differ in personality. As Eric grew up, his personality changed as he attended high school and differed from his brother, which is evident of the change due to social interactions. Eric imitated his older brother in various ways until he developed his own individuality as he matured. This is supported by Hoffeditz stating that sibling relationships show that the younger sibling is more neurotic, less dominant and less sufficient than older siblings. Eric's parents can be slightly overprotective at times but not to the point of subjecting him to excessive psychological control. He grew up in a culture dominated by individualism that was greater than family influences and it was essential for him to discover himself with a personal identity.