Can listening to music decrease inflammation and stress? Can
music be beneficial to heart patients? To answer these questions, we have to
understand inflammation and it role in heart disease.
What is inflammation?
Inflammation is the body’s protective response to a harmful
agent. The purpose of inflammation is to
eliminate the initial cause of an injury to the body, clear out the dead cells
caused by the injury and repair the damaged tissue. The inflammatory process involves the vascular
system, the immune system and specialized cells in the blood used to fight injury. In addition, with inflammation, a variety of
proteins are released to help break down a foreign body. Unfortunately, these proteins
may also break down healthy tissue and increase the blood clotting ability of
the body. Acute inflammation occurs in
response to specific injury, such as an infection by a virus or trauma to a
body part. This inflammatory response is
quick and of a short duration. For example in a bacterial infection, the body
sends cells to fight the bacteria, a fever is produced to help kill the bacteria,
and there is swelling and redness in the area of the infection. Chronic
inflammation occurs over years in a long running cycle of tissue destruction
and healing. An example of chronic inflammation is rheumatoid arthritis.
Is heart disease an inflammatory process?
Atherosclerosis (plaque or blockage in the heart arteries)
is now felt to be a type of chronic inflammatory process. Inflammation has a key role in
atherosclerosis, from the initiation of plaque, through the build up of
blockage to the blood clotting that occurs with an acute heart attack. When the
inner lining of the heart artery is damaged by high blood flow or biochemical
stimuli (smoking, high blood pressure, diabetes or high cholesterol) it permits
cholesterol and inflammatory cells to enter and be deposited in the wall of the
artery, thus forming plaque. Once the body realizes that there is damage to the
artery wall, more cholesterol and inflammatory cells are deposited to try to
repair the damaged wall causing the plaque to grow over time. Ultimately, the plaque starts to limit the
blood flow through the artery, causing chest pain (angina) or the plaque breaks
open stimulating blood clotting and an acute heart attack. The effect of
inflammation can be measured via a simple blood test. Elevation in the
inflammatory marker called C reactive protein (CRP) has been shown to increase
the risk of heart artery disease.
How is inflammation in the heart arteries treated?
Aspirin is used to reduce the risk for a heart attack. It does this by reducing the body’s ability
to clot, but it is also a powerful anti-inflammatory agent. Interestingly,
other popular anti-inflammatories such as ibuprofen (Motrin, Advil) and
naprosyn (Aleve) don’t reduce the risk for a heart attack and may in fact
increase the risk. They should not be used in place of aspirin to reduce heart
risks. The cholesterol lowering agents
called statins have been shown to reduce the risk for heart attack and stroke.
These medications lower total cholesterol and LDL (the bad cholesterol) and
raise the good cholesterol (HDL). However there are many other medications
which lower cholesterol, but have not been shown to reduce the risk of heart
disease. It is felt that statins have anti-inflammatory properties. In patients
with an elevated CRP treating with a statin reduces the risk for cardiac events
by 50%. It is this anti-inflammatory effect, along with the cholesterol
lowering properties, that gives statins their edge over other medications and their
power to reduce heart attacks and stroke. There are many non-pharmacologic therapies
that are anti-inflammatory. These include foods such as fruits, vegetables and
fish high in omega3 fatty acids. Other
anti-inflammatory therapies include exercise, yoga, meditation and music.
Is music anti-inflammatory? Can music be used as therapy?
Sounds in nature, such as a babbling brook or ocean waves on
the shore, are known to be soothing and are promoted as a method to relax and
to fall asleep. Many musical pieces can
produce the same sense of calmness. When
his biographer asked Steve Jobs, the inventor of ITunes, what music he listened
to, the answer revealed the anti-inflammatory power of music. Aside
from songs by Bob Dylan and the Beatles, his favorites included a Gregorian
chant, "Spiritus Domini" performed by Benedictine monks and the
"Goldberg Variations", by J.S. Bach and performed by Glenn
Gould. The interview took place during Jobs third medical leave for
treatment of pancreatic cancer. He felt the first piece was so calming it
almost put him in a trance and the later he felt was deep and reflective. After
listening to those pieces, Jobs insight is certainly supported. The data
supporting music therapy comes from diverse medical fields. In patients with pregnancy or schizophrenia,
listening to music provided clear-cut psychological benefits. In patients on
respirators, music reduced the breathing rate and blood pressure. Surgical patients who listen to music, even
under general anesthesia, have less anxiety and less need for pain medication
during recovery. A large review of
twenty-three trials with more than 1000 participants looked at music therapy in
heart attack patients. It concluded that music reduced anxiety, heart rate,
respiratory rate and blood pressure in these patients, suggesting a
psychological relaxation response.
Certainly what is good and soothing for one listener is
cacophony to another listener. Everyone should find their own anti-inflammatory
songs as music therapy has no side effects or risks, assuming of course that
the decibel level is reasonable. So, after a day of battling the world and
increasing your inflammatory markers, go home, slip on a pair of headphones,
find some good relaxing music and engage in your own form of anti-inflammatory
therapy. Perhaps sing or listen to some holiday tunes to reduce the stress and
increase the enjoyment of the holiday season.
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