2) Having a long-term companion through marriage reduces stress. According to the University of Warwick, stress levels are reduced because marriage helps people develop good habits. Less stress means lower blood pressure and better chances of surviving a heart attack. The support and love given by a spouse after a the other has had a heart attack is what the British Cardiovascular Society claims to be the reason 14% of married people are less likely to die after a heart attack.
3) Marriage lowers the risk of domestic violence for both men and women. According to a 1994 Justice Department report on the National Crime Victimization Survey, it is understood that "single and divorced women were 4 to 5 times more likely to be victims of violence in any given year than wives; bachelors were four times more likely to be violent-crime victims than husbands."
4) Marriage has been proven to be associated with the longevity of life for the couple's children. A study on highly advantaged children (middle-class whites with IQs of at least 135) through their seventies showed that parent's divorce decreased children's life expectancy by four years. Forty-year-olds from divorced homes were 3 times more likely to die from all causes than 40-year-olds whose parents stayed married. Therefore, can be said that having your parents be married improves your life and health.
5) Marriage can lead to better bone marrow density. A study conducted by UCLA showed positive outcomes on BMD (bone marrow density) for married mean and women. Married men had better outcomes than men who were widowed, separated, divorced or never married. Men who married after the age of 25 had the best results of the group. For women, happy marriages showed results on BMD while marriage alone did not show an association in BMD results. Not only does marriage benefit bones but also benefits one's chance of not getting pneumonia or developing cancer- according to a New York Times Study.