Well, ladies, it seems we have been right all this time.

You know those fights you have with your partner that completely set your teeth on edge, where you bite your tongue because you are quite afraid of what would come out of your mouth, and you have a decided urge to hurl a piece of crockery at someone's head?

Turns out, all this is *gasp* quite bad for your heart. The NY Times (reprinted here because IE here at work is misbehaving and erroring out when the Blogger widgets load) states:
By TARA PARKER-POPE
Published: October 2, 2007
Arguing is an inevitable part of married life. But now researchers are putting the marital spat under the microscope to see if the way you fight with your spouse can affect your health.

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Tara Parker-Pope blogs daily about health.

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Recent studies show that how often couples fight or what they fight about usually doesn’t matter. Instead, it’s the nuanced interactions between men and women, and how they react to and resolve conflict, that appear to make a meaningful difference in the health of the marriage and the health of the couple.

A study of nearly 4,000 men and women from Framingham, Mass., asked whether they typically vented their feelings or kept quiet in arguments with their spouse. Notably, 32 percent of the men and 23 percent of the women said they typically bottled up their feelings during a marital spat.

In men, keeping quiet during a fight didn’t have any measurable effect on health. But women who didn’t speak their minds in those fights were four times as likely to die during the 10-year study period as women who always told their husbands how they felt, according to the July report in Psychosomatic Medicine. Whether the woman reported being in a happy marriage or an unhappy marriage didn’t change her risk.

The tendency to bottle up feelings during a fight is known as self-silencing. For men, it may simply be a calculated but harmless decision to keep the peace. But when women stay quiet, it takes a surprising physical toll.

“When you’re suppressing communication and feelings during conflict with your husband, it’s doing something very negative to your physiology, and in the long term it will affect your health,” said Elaine Eaker, an epidemiologist in Gaithersburg, Md., who was the study’s lead author. “This doesn’t mean women should start throwing plates at their husbands, but there needs to be a safe environment where both spouses can equally communicate.”

Other studies led by Dana Crowley Jack, a professor of interdisciplinary studies at Western Washington University in Bellingham, Wash., have linked the self-silencing trait to numerous psychological and physical health risks, including depression, eating disorders and heart disease.

Keeping quiet during a fight with a spouse is something “we all have to do sometimes,” Dr. Jack said. “But we worry about the people who do it in a more extreme fashion.”

The emotional tone that men and women take during arguments with a spouse can also take a toll on their health. Utah researchers have videotaped 150 couples to measure the effect that marital arguing style has on heart risk. The men and women were mostly in their 60s, had been married on average for more than 30 years and had no signs of heart disease. The couples were given stressful topics to discuss, like money or household chores, and the comments made during the ensuing arguments were categorized as warm, hostile, controlling or submissive. The men and women also underwent heart scans to measure coronary artery calcium, an indicator of heart disease risk.

The researchers found that the style of argument detected in the video sessions was a powerful predictor for a man or woman’s risk for underlying heart disease. In fact, the way the couple interacted was as important a heart risk factor as whether they smoked or had high cholesterol, says Timothy W. Smith, a psychology professor at the University of Utah, who presented the study last year to the American Psychosomatic Society.

For women, whether a husband’s arguing style was warm or hostile had the biggest effect on her heart health. Dr. Smith notes that in a fight about money, for instance, one man said, “Did you pass elementary school math?” But another said, “Bless you, you are not so good with the checkbook, but you’re good at other things.” In both exchanges, the husband was criticizing his wife’s money management skills, but the second comment was infused with a level of warmth. In the study, a warm style of arguing by either spouse lowered the wife’s risk of heart disease.

But arguing style affected men and women differently. The level of warmth or hostility had no effect on a man’s heart health. For a man, heart risk increased if disagreements with his wife involved a battle for control. And it didn’t matter whether he or his wife was the one making the controlling comments. An example of a controlling argument style showed up in one video of a man arguing with his wife about money. “You really should just listen to me on this,” he told her.

What’s particularly notable about the study is that the men and women filled out standard questionnaires about the quality of their relationships, but those answers were not a good predictor of cardiovascular risk. The difference in risk showed up only when the quality of the couple’s bickering style was assessed.

“Disagreements in a marriage are inevitable, but it’s how you conduct yourself,” Dr. Smith said. “Can you do it in a way that gets your concerns addressed, but without doing damage at the same time? That’s not an easy mark to hit for some couples.”
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So, ladies, express yourself. Yell, scream, cry. I try so hard NOT to lose my composure that I give myself headaches, grind my teeth, and cry...when honestly I'd rather throw something, or go for a run, or scream.

Just don't toss any crockery!