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Anxiety Archive
Articles
Anxiety and heart disease: A complex connection
A little bit of worry and stress is normal — even beneficial. But chronic anxiety may raise your risk for heart problems.
Image: © grinvalds/Thinkstock
If you feel anxious now and then, that's perfectly normal. In fact, worrying can spur you to take positive action that may benefit your health, such as getting screening tests or doing regular exercise. But excessive worrying can have the opposite effect.
"Small amounts of anxiety and stress can push people to be more productive. The problem happens when anxiety becomes so overwhelming that you're unable to function normally," says Dr. Christopher Celano, a psychiatrist at the Cardiac Psychiatry Research Program at Harvard-affiliated Massachusetts General Hospital. That level of worry and stress may represent an anxiety disorder, a group of conditions that affect some 40 million adults in this country.
Uncovering the link between emotional stress and heart disease
The brain's fear center may trigger inflammation and lead to a heart attack. But stress reduction techniques can break the chain.
Image: © Cardiology Division, Massachusetts General Hospital
A small, almond-shaped area deep inside the brain called the amygdala is involved in processing intense emotions, such as anxiety, fear, and stress. Now, a new brain-imaging study reveals how heightened activity in the amygdala may trigger a series of events throughout the body that raises heart attack risk.
"This study identifies a mechanism that links stress, artery inflammation, and subsequent risk of a heart attack," says study leader Dr. Ahmed Tawakol, an associate professor of medicine at Harvard Medical School. Earlier animal studies have shown that stress activates bone marrow to make white blood cells. These infection-fighting cells trigger inflammation, a process that encourages the buildup of fatty plaque inside artery walls. "But what we didn't know was, does this happen in humans? And what is the role of the brain?" he says.
Take steps to prevent or reverse stress-related health problems
The relaxation response appears to manage stress and some chronic conditions at the deepest levels.
Image: © XiXinXing/Thinkstock
Chronic stress takes a toll on the body: it contributes to everything from high blood pressure and heart disease to anxiety, digestive disorders, and slow wound healing. On the flip side, managing stress helps control many chronic conditions or reduce your risk for developing them. Strategies include regular exercise, a healthy diet, and better sleep. And one strategy in particular—eliciting the relaxation response—may enable you to manage stress right down to your genes.
The anti-stressor
Relaxation response and genes
In the past decade, several studies from the Benson-Henry Institute have suggested that the relaxation response is associated with changes in genes that influence health. Among the findings are effects on the following:
Blood pressure. The relaxation response may activate genes associated with dilating the blood vessels and reduce activity of genes associated with blood vessel narrowing and inflammation. "It increases nitric oxide production, which in-creases the elasticity of the blood vessels and relaxes them," says Dr. Mehta. That can help lower blood pressure.
Blood sugar. The relaxation response may improve insulin activity by activating genes that help to control blood sugar.
Digestion. The relaxation response may reduce the activity of genes directly linked to the processes of inflammatory bowel disease (including Crohn's disease and ulcerative colitis). "Stress stimulates the digestive tract, which may cause diarrhea or nausea. The relaxation response returns gastrointestinal movement to a balanced state," explains Dr. Mehta.
Inflammation. "The relaxation response appears to turn off genes implicated in inflammation, and the stress response itself," says Dr. Mehta. While we need inflammation to fight infection and heal the body, chronic stress puts the body in a constant state of inflammation. That can increase plaque buildup inside coronary arteries, which may raise the risk for heart attack, stroke, and chest pain, and can also trigger unregulated cell growth, contributing to cancer risk. Does this mean the relaxation response can prevent health problems, or even reverse health problems that have already appeared? "It's encouraging, and we are studying that question right now," says Dr. Mehta.
Trigger the response
More ways to get there
Other techniques that evoke the relaxation response include mindfulness meditation, tai chi, yoga, and the following methods.
Focused breathing. Focusing on slow, deep breaths can be calming. Make sure your belly moves in and out as you breathe.
A body scan. Concentrate on one part of the body. Imagine it is open, warm, and relaxed, and that you are releasing tension from that area. Move on to another body part and repeat the process.
Guided imagery. Create a soothing scene in your mind that makes you feel relaxed. It may be a place or an experience. Allow your senses to be involved, imagining the smells you are encountering, the sounds you are hearing, and the ways things feel in your hands.
Repetitive prayer. Repeat a favorite prayer from your faith either silently or out loud. You can use a guide (such as your breathing or a rosary) to help with the repetition.
For more information, contact the Benson-Henry Institute for Mind Body Medicine at 617-643-6090 or www.bensonhenryinstitute.org.
Is health anxiety linked to heart disease?
It appears that health anxiety may be associated with a greater risk for developing heart disease.
Recent Articles
What could be causing your itchy scalp?
Could couples therapy be right for you?
Is the portfolio diet the best diet ever?
Got a hangnail? Here's what to do
Winter hiking: Magical or miserable?
Sciatica: Gentle stretches to help relieve pain and improve mobility
Thinking about becoming a pescatarian? What you should know about the pescatarian diet
Let's not call it cancer
Chair exercises for seniors: Boosting strength, flexibility, and stamina
Why all the buzz about inflammation — and just how bad is it?
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