"Women who reported usually or always keeping their feelings to themselves when in conflict with their husbands, known as self-silencing, had more than four times the risk of dying from any cause compared to women who always show their feelings, the researchers said."
I think this is true. There is a huge difference between getting angry, arguing/discussing/clearing the air and getting angry and just "saving my breath" because the husband doesn't listen or argue constructively to reach a compromise. Huge difference in underlying stress and damage to the relationship. Arguing and clearing the air is actually helpful....sweeping it under the rug will eventually kill the relationship and I would guess, both partners.
I say never get married until you've had 2 or 3 really good disagreements. That way, a person will know what they're in for.....