单选题 .  Life's annoyances can affect your wellbeing if they go unaddressed. Studies have found that people who rate high on tests for anger are at an increased risk for high blood pressure and heart disease.
    To process anger in a healthy way, Todd Kashdan, a psychology professor at George Mason University in Virginia, recommends that you attempt to understand why you feel upset. Without pinpointing why you're angry, he says, "you can't get a foot-hold to figure out what your body is mobilising to do."
    When harnessed properly, anger can be a motivator. Frustration can drive us to choose a novel path while problem solving, or to become focused and committed  taking up a new political cause, for example. Frustration may also be useful in negotiations. Anger can signal that you are done conceding, says Russell Cropanzano, a professor of management and entrepreneurship at the University of Colorado's Leeds School of Business. But watch how you express it—raising your voice during a debate may be helpful, but the same tactic could potentially undermine collaborative work.
    On that note, vexation has limits.  Kashdan recommends thinking of anger as a vehicle speedometer, where 10 km/h is irritation and 100km/h is blind rage. Speed limits are a measure of effectiveness—momentary annoyance during a negotiation might be useful, but rage seldom is.
    If you use anger as a tool too often, people will learn to avoid you. While others may offer small amounts of time and effort to keep your temper from erupting, you'll miss out on their best contributions. Make anger the last step. If you get into a disagreement with someone, pause for a moment and try to understand that person's point of view, then look for a mutually beneficial solution. "Once you become angry," Cropanzano points out, "your thinking gets too narrow." To bring anger down a notch or two, the American Psychological Association recommends practising deep breathing. Focus on inhaling and exhaling, and picture your breath travelling to your diaphragm.
    Create a playlist of your favourite music to help you relax in difficult situations. Kashdan says different genres work for different people. He suggests listening when you feel agitated in order to curb anger.
    Keep disagreements from turning into fights by improving your communication skills. Avoid cutting others off or using accusatory adverbs such as 'always' and 'never'. Unhealthy anger can be a symptom of mental health disorders such as depression, says Dr Darin Dougherty of the Harvard Medical School.  Speak to your doctor if this feels familiar; medication and cognitive behavioural therapy may help.6.  According to the passage, people fail to keep their temper from erupting tend to ______.