Sibling comes from the word SIB and the environment which means people of the same environment and interests.
Sibling rivalry (competition between brothers) has existed since prehistoric times when you compete to get the attention of parents and limited resources.
The study shows that close siblings have a greater chance of imitating bad behavior with each other than good behavior.
The firstborn tends to have a higher IQ than his brothers.
According to research, young people in the family tend to be more creative and brave in taking risks.
Competition siblings can have a positive impact on the development of children's social and psychological abilities, such as the ability to work together and overcome conflict.
Sisters tend to make physical contact more often such as hugs and kisses than brothers.
Studies show that children who have siblings tend to be happier and have more friends than only children.
Boys who have sisters tend to be more empathy and sensitive to the feelings of others.
According to research, children who have siblings have more likely to live longer than only children.
