Does Caffeine Cause Atrial Fibrillation
Is a heart disorder, most
often found in older adults. During atrial fibrillation, the heart’s two small upper chambers quiver rather than
beating effectively. As a result, blood isn’t pumped completely out of the chambers, so it can pool and
Approximately 2.5 million Americans suffer from atrial fibrillation. The likelihood of developing this disorder increases with
age. Doctors estimate that three to five percent of those over age 65 have this disorder.
fibrillation can be dangerous because, if a piece of a blood
clot in the atria leaves the heart and becomes lodged in an artery in the brain, a stroke can result. In fact,
about 15% of all strokes occur in people with atrial fibrillation.
There are several ways to treat atrial fibrillation. The most common treatments
• Medications, which slow
down the rapid heart rate associated with atrial fibrillation.
• Electrical cardioversion - This is basically an electric shock that restores normal rhythm. It is typically used
when medications don’t improve symptoms.
• Drugs can sometimes
restore the heart's normal rhythm. These drugs are given under medical supervision, and are delivered through an IV
tube into a vein, usually in the patient's arm.
• Radiofrequency ablation may be effective in some patients when medications don't work. In this procedure, thin and
flexible tubes are introduced through a blood vessel and directed to the heart muscle. Then a burst of
radiofrequency energy is delivered to destroy tissue that triggers abnormal electrical signals or to block abnormal
• Surgery can be used
to disrupt electrical pathways that generate atrial fibrillation.
• Pacemakers can be
implanted under the skin to regulate the heart rhythm.
Who’s At Risk for Atrial Fibrillation?
We don’t really know what causes atrial fibrillation, but we do understand some of
the risk factors. The most significant are:
• Increased age – the
number one risk factor is simply old age
• Coronary heart disease
• High blood pressure
• Abnormal heart muscle function
• Disease of the mitral valve between the left and right ventricle
• An overactive thyroid gland
• Low amounts of oxygen in the blood. This is often found in patients with lung diseases like emphysema or chronic obstructive
• Inflammation of the
lining surrounding the heart
• Blood clots in the lung
• Chronic lung disease
• Stimulant drug use –
abuse of drugs like cocaine or decongestants
• Recent heart or lung surgery
• Congenital heart diseaseIn addition, there are young adults who have atrial fibrillation without any known cause or any
evidence of underlying heart disease. This condition is known as lone atrial fibrillation. Stress, alcohol, tobacco
and the use of stimulants is believed to play a role in lone atrial
fibrillation. Does Caffeine Cause Atrial Fibrillation?
One question that has been asked by many people is whether caffeine contributes to
atrial fibrillation, and whether caffeine consumption is safe for those with atrial fibrillation.
One study, reported by the UK Tea Council, suggests that caffeine consumption is
safe for those at risk for the disease. This study, conducted in Denmark, examined nearly 48,000 participants, each
over the age of 56. Their caffeine consumption was analyzed over a period of years, as was their health
information, including whether or not they went on to develop atrial fibrillation.
The study concluded that caffeine consumption was not at all related to whether or
not participants developed the heart disorder. The associated researchers did not recommend that those at risk for
atrial fibrillation discontinue the consumption of caffeine.
This is great news, especially for green tea drinkers. Since green tea is known to
be associated with a lower than average risk of heart disease, it’s wise for those at risk of any sort of
cardiovascular disease to consume green tea on a daily basis. And, while green tea is lower in caffeine than
coffee, black tea and soda, it does contain some caffeine.
So, you’re safe to drink your green tea, both for its health benefits and its
delicious and refreshing flavor. If you’re not a connoisseur of green tea yet, take a look at all the benefits that
green tea can offer.
• Green tea is full of anti-oxidants – which are known to reduce aging and prevent
• Green tea has been shown to decrease your risk of heart disease by improving
your cholesterol. While green tea doesn’t actually reduce the cholesterol in your blood, it does appear to prevent
the bad cholesterol from hardening into the plaque that causes narrowing of the arteries.
• Green tea has been associated with a lower risk of many forms of cancer. It is
believed that green tea’s anti-oxidants act as a scavenger to abnormal cells, ridding the body of them before they
can mutate into cancer cells.
• Green tea has been shown to naturally regulate blood glucose levels, which may
help maintain normal weight and may be helpful in controlling Type II diabetes
• Green tea has been shown to have anti-microbial properties, which means that it
may be helpful in ridding the body of infections.
So, if you haven’t been drinking green tea, see what you’ve been missing? Not only
is green tea delicious, inexpensive and readily available, but it may also be an important way to prevent disease
and protect your health.
Jon M. Stout is the Chairman of the Golden Moon Tea Company. Golden Moon Tea
carefully selects the finest rare and orthodox teas, which are processed slowly and handcrafted with extreme care.
At their website, you can learn more about their current tea offerings, including their exceptional green tea,
white tea, black tea, oolong tea (also known as wu-long and wu long tea) and chai. Visit goldenmoontea.com for all
details concerning the Golden Moon Tea Company's fine line of teas.
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