According to report of Los Angeles Healthcare system in California, “Negative interaction between couples can increase heart problem, it can lead carotids arteries (those blood vessels that carry blood through neck to brain) thicker.
Thicker carotids can increase the risk of cardiovascular problems. It is also found in study that people having more negative interaction with their wife had 8.5% higher risk of having a heart attack or other brain problems.
Researchers took data of about 281 middle-age adults who were married or living with partners in marriage-like relationships.