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5 scary facts about flu and your heart

Most people with heart disease understand that they are at risk for heart attack and stroke, but they never consider that the risk of these events might be influenced by outside factors, such as the flu.
So while getting the flu might leave you worried that you’ll suffer from a complication like pneumonia, bronchitis or a bacterial infection of the lungs, you don’t even think about what it’s doing to your heart… but you should.
Putting it in perspective
A review published by the American Heart Association provides a summary of research on the connection between the flu and your heart.
And the results are pretty darn scary. They show:
- Cardiovascular deaths and influenza epidemics spike around the same time.
- Patients are six times more likely to experience a heart attack the week after influenza infection than they are at any point during the year prior to or the year after the infection.
- In one study looking at 336,000 hospital admissions for flu, 11.5% experienced a serious cardiac event.
- Another study examining 90,000 lab-confirmed influenza infections found a strikingly similar rate of 11.7% experiencing an acute cardiovascular event.
- One in eight patients, or 12.5%, admitted to the hospital with influenza experienced a cardiovascular event, with 31% of those requiring intensive care and 7% dying as a result of the event, another study found.
In other words, flu can be deadly — not just because of what it does to your lungs, but because of the effect it has on your heart.
Flu, inflammation and heart dangers
So what is it that allows a common viral infection to set off a cascade that can lead to heart attack, stroke and death?
Well, the researchers say that the reason influenza stresses your heart and vascular system so much is your body’s inflammatory response to the virus.
Basically, when the flu strikes, your body sends out “first responders” to handle the situation. These are white blood cells whose job is to kill off the invader and keep you safe.
When you’re sick, you can tell that these immune cells are fighting because you feel the effects of their “combat zones” in the swelling, tenderness, pain, weakness and sometimes redness and increased temperature of your joints, muscles and lymph nodes.
And you would think this is a good thing, right?
Well, it is in a way, since it has to happen in order for you to get well.
However, those battle zones can also cause a traffic jam of sorts, leading to blood clots, elevated blood pressure and even swelling or scarring of your heart. These added stressors make plaque within your arteries more vulnerable to rupture, causing a blockage that cuts off oxygen to your heart or brain.
And the end result is a heart attack or stroke.
If that weren’t enough, the additional complications of flu that we already mentioned, like pneumonia, can make heart failure symptoms or heart arrhythmia much worse.
In short, an already weakened heart can be easily overwhelmed by the stress the flu puts on your body.
Preparing your heart for flu season
This means that if you’re already living with heart disease (or have risk factors for heart problems), the time to start supporting your heart so that it can be at its best when flu hits is now.
The researchers say steps to take include:
- Making sure you’re taking your medications
- Following your recommended diet
- Getting plenty of exercise
- Sticking to a stress reduction plan (such as meditation or mindful breathing)
Additionally, taking supplements to encourage a healthy cardiovascular system can help. These include:
- CoEnzyme Q10 (CoQ10) has been shown to support patients with heart failure.
- Fish oil – A Mayo Clinic review of 40 clinical trials found that fish oil may help reduce the risk of heart attack and coronary artery disease.
- Alpha lipoic acid (ALA) has been found to have four major heart benefits that could help you win the battle against heart disease.
But remember…
Starting now to care for your heart is key, since according to the researchers, “If your heart condition is stable and you end up with the flu, chances are you’ll experience fewer, less severe complications than if your heart condition is poorly managed.”
Editor’s note: There are perfectly safe and natural ways to decrease your risk of blood clots including the 25-cent vitamin, the nutrient that acts as a natural blood thinner and the powerful herb that helps clear plaque. To discover these and other secrets of long-lived hearts, click here for Hushed Up Natural Heart Cures and Common Misconceptions of Popular Heart Treatments!
Sources:
Is a Bad Flu Season Coming? Study Projects Sharp Rebound Following Relaxation of COVID Distancing Measures. – Columbia Mailman School of Public Health
Flu and heart disease: The surprising connection that should convince you to schedule your shot – ScienceDaily