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If you ask most people, they would agree with the statement that
people under a lot of stress have an increased risk for heart disease.
But is that really true?
According to one of Beaver Medical Groups cardiologists,
Dr. Thomas Makowski, it is not as clear-cut as the connection between
smoking and heart disease because stress is much harder
to define and quantify. This difficulty has led to relatively few
scientific studies, but this is slowly changing.
In the May 2002 issue of Psychosomatic Medicine, researchers found
that in men, psychological distress-specifically unsatisfactory
social supports and poor coping skills were connected to poor health
habits like not enough exercise and a poor diet. These factors led
to an increased risk for metabolic syndrome, a risk factor for heart
disease. Metabolic syndrome is a pre-diabetic phase consisting of
obesity, high blood sugar, high triglycerides, and low HDL (good
cholesterol). Interestingly, this connection was less clear in women,
possibly due to their hormones or different response to stressors.
Another group of researchers from the University College London
looked at how much control men had in their work and how they viewed
their wealth and found similar connections between stress hormone
levels and metabolic syndrome.
The stress response, also called the fight-or-flight response,
triggers specific changes in our body by releasing hormones such
as adrenaline and cortisol in order to enhance the odds of surviving
whatever threat we are facing. This is designed for
our survival, temporarily turning us into supermen and superwomen.
For example, the stress response releases blood glucose and fatty
acids in our blood for more energy. It also increases blood pressure
to pump more blood to the muscles, and it increases our clotting
ability in case we get cut. Chronic stress leads to a depressed
immune system because of the enormous energy needs by the body to
stay at red alert, even though the threat has passed.
It is not clear whether a chronically stressed-out person is more
likely to smoke, have a poor diet, and not exercise enough, which
are all well-documented risk factors for heart disease, or whether
the increased levels of stress hormones directly increase heart
disease risk.
Either way, it is a good idea to save your stress response for
true emergencies. Learning stress management techniques will not
only help you to decrease the negative side effects of the stress
response, but also help you to prevent triggering it in the first
place.
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