An international group of researchers in one of the last works were able to derive a formula for the perfect marriage. The specialists took into account all the main factors influencing the stability and balance of family relationships.
British scientists, together with colleagues from Sweden and the United States held a massive survey. As it turned out, a major role in the marriage is the age difference between the partners. It should not exceed 6 years. Then the family will be a minimum of conflict and disagreement.
According to the survey, many marriages end when the head of the family has stable and sufficient income. Women in material security from men, feel more secure.
Trust, family relationships are often built between people with equal level of intelligence. This factor allows you to talk to the man and the woman as an equal, to have common interests and take joint participation in the upbringing of children.