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Can Anxiety Cause High Blood Pressure?

Explore the links between anxiety, stress and blood pressure, and how you can protect your health


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​​We’ve all been there. We fear failure, lie awake at night with our mind racing and experience stressors and traumas that seem to eat away at us. We feel the anxiety rising in our chest and falling into our stomach. What if all this emotional strain is dangerous for our blood pressure?

We already know the effect of stress on our heart rate because we feel it. But that’s a temporary response to a temporary situation. When it comes to anxiety, which is more chronic and long-lasting than stress, the interplay between our physical, mental and emotional states is complex. So is the answer to whether anxiety can cause long-term high blood pressure.

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How much can anxiety raise blood pressure?

“Can anxiety increase your blood pressure? Unequivocally, the answer is yes,” says George Bakris, M.D., professor of medicine and director of the Comprehensive Hypertension Center at the University of Chicago Medicine. “And in fact, the older you are — in fact if you’re over 60 — you can almost take it to the bank, it’s going to raise your pressure.”

Aging by itself is already associated with higher blood pressure. Our blood vessels get stiffer over time. Bakris notes that one of the natural buffers we have to blunt the rise in blood pressure — a compound released from cells called nitric oxide—is reduced as we get older.

Blood pressure may be even higher in those experiencing anxiety, anger and related factors at any age, Bakris says. But there are differences between temporary rises in blood pressure and more sustained — and potentially more harmful — high blood pressure levels. To get a better measure of your blood pressure, check it several times over a longer period of time and discuss your numbers with your doctor.

“Anxiety cuts across everything, but it should not be confused as a cause of hypertension,” Bakris says.

Evidence suggests that certain people exposed to stress have a statistically greater likelihood of developing heart problems, including high blood pressure, says Richard Contrada, of the Institute for Health, Health Care Policy and Aging Research and a professor in the Rutgers University department of psychology. So stress can be a risk factor.

“But a risk factor is a correlation,” Contrada says. “It does not come with evidence of cause and effect.”

For that you need clinical studies, and obviously scientists are not going to conduct experiments that would induce stress, anxiety or anger to the point of hurting someone’s health, Contrada notes. He has seen research that assessed whether reducing stress, anxiety or depression also reduced the chances of a heart problem worsening, but he considers those results inconclusive.

“There are some promising studies that show that sometimes psychotherapy or mindfulness can reduce stress and thereby reduce the odds of a heart problem,” Contrada says. “But in aggregate, when all the studies are taken together and analyzed statistically, it’s not a strong relationship.”

Stress and anxiety look different in different people

“Everybody gets anxious more or less depending upon what’s going on around them,” Contrada says. But for some people, anxiety is a “more chronic, stable characteristic.”

Other people roll with the punches, and their blood pressure might become elevated but only temporarily and not to dangerous levels, Bakris says. Those individuals are managing stress, which is temporary and dissipates once the stressful circumstance is resolved. But people who are characteristically anxious across various situations and over time might have what’s called trait anxiety, Contrada says, as opposed to a time-limited state of feeling anxious.

“If you were to take 100 people, same age, same background, and expose them to the same level of anxiety, you would get a bell-shaped curve in terms of blood pressures,” Bakris says. “And the reason for that is how people handle anxiety and stress.”

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The fallout from stress and anxiety

People experiencing stress and anxiety might respond in other ways that can raise blood pressure. Anxiety, anger and depression can contribute to heart problems indirectly when they bring on certain behaviors, Contrada says. Stress can cause overeating, for example, and obesity is a clear risk factor for heart problems.

Conversely, excess weight might increase the levels of stress hormones. So “it’s kind of chicken-and-egg because being overweight also can contribute to stress,” he says. Same with smoking or excessive alcohol use, which may be related to stress in some people.

“When you add up these interactions with specific behaviors, then it does become part of a set of lifestyle factors that warrant people’s attention,” Contrada says. “So I wouldn’t dismiss it. It’s just that it’s not as simple as some of the theories led us to believe” about the relationship between stress and high blood pressure.

Having anxiety — about high blood pressure

Your lifetime risk of getting high blood pressure at some point is 90 percent after reaching middle age, studies show. Yet anxiety surrounding measuring blood pressure itself might make any single result artificially high. If you were anxious at the time your blood pressure was taken, Bakris suggests not taking an extremely high result at face value.

“What you do is say, ‘OK, I must be very anxious. Let me sit down, take in deep breaths here and let’s start over,’ ” he says. “That should be a clue to the patient to not go to the emergency room but to go to a dark room.” After some deep breathing and relaxation, recheck the pressure and consider the ER only if it hasn’t gone down.

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However, if you are experiencing a severely elevated blood pressure of 180 over 120 and are suffering from other symptoms such as nausea, blurred vision, severe headache, confusion or dizziness, you could be having a hypertensive emergency and should call 911. And any consistently high blood pressure readings, even without other symptoms, should be discussed with your doctor.

Anxiety, depression and anger are all risk factors

Heart problems are a risk factor for depression and anxiety, maybe to a greater extent than the reverse, Contrada says. So it becomes a negative cycle.

There’s also overlap or co-occurrence of different emotional states and conditions, Contrada says. Anxiety problems often co-occur with depression, which often co-occurs with anger problems, which often co-occur with having been exposed to trauma.

“A person who seems highly anxious may also be high on these other emotional dispositions,” Contrada says. “And so it’s hard to disentangle them and isolate which one may be the most important. But it also means there’s a pattern there that warrants attention because things might be multiplying in a health-damaging way.”

Regardless of the strength or weakness of the link between anxiety and high blood pressure, Contrada suggests addressing anything that affects your quality of life.

“The starting point for many people would be: Anxiety is its own reason to do something about it,” he says.

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