Dr. John Day, Cardiologist

17 Ways to Increase Your Heart Rate Variability and Life Expectancy Your heart rate variability (HRV) number may be the single best predictor of your overall health, fitness, and longevity.  Your HRV number, and how far it strays from your baseline, can tell you how much mental or physical stress your heart is seeing.  In this article, I will teach you how to determine your HRV number in five minutes and then how to increase your heart rate variability. For…

5 Reasons Why You Need to Know Your Heart Rate Variability Number While knowing your blood pressure, cholesterol, and glucose numbers are all important, perhaps your most important health number is the one you probably have never heard about.  Indeed, heart rate variability (HRV) may be your best overall marker of health, fitness, and longevity.  HRV tells you how much mental or physical stress your heart is experiencing.   Fortunately, tracking this number is easy and will cost you next…

9 Ways to Lower Your TMAO Afib and Heart Disease Risk TMAO is a toxic byproduct from an unhealthy gut microbiome.  Having the right gut bacteria may help to prevent atrial fibrillation and just about every other form of cardiovascular disease.  In this article, I'll share 9 ways to lower your TMAO Afib and heart disease risk. What is TMAO? Simply put, TMAO or trimethylamine N-oxide, is a waste byproduct from your gut bacteria.  As your gut microbiome tries to…

Is there a Low Carb Diet Mortality Risk? Everyone seemed to think carbs were bad until this new study was published last week.  Is there a way to follow a low carb diet and still live a long life?  In this article, I'll teach you how to optimize your carbs so that you can avoid the low carb diet mortality risk. The Dietary Carbohydrate Intake and Mortality Study In what has to be one of the biggest carbohydrate studies ever…

8 Reasons Why I Like the New Afib Blood Thinners More than Warfarin/Coumadin No one wants to take a blood thinner.  But if you had a gun to your head with no other choice, should you go with one of the new Afib blood thinners or warfarin (also known as Coumadin)?  In this article, I share the 8 reasons why I like the new Afib blood thinners more than warfarin. The FDA Approved New Blood Thinners When I am referring…

Dr. Day's Riced Cauliflower Fast Food It often seems like there is no time to prepare healthy food.  Wouldn't it be great if you could have great tasting healthy food in 5 minutes?  In this article, I'll share my riced cauliflower fast food meal.  This dish is guaranteed to fill you up for hours! My "No Cooking Skills" Disclaimer I am not a chef. In fact, I am horrible in the kitchen.   While my wife is a fabulous cook,…

4 Reasons Why Vacations Make You Live Longer Wouldn't it be great if the more vacations you took, the longer you lived?  Having just returned from a family trip I'd like to think that this week away added years to my life.  In a landmark study, researchers found that the more holidays you take, the longer you live.  In this article, I discuss four reasons why vacations make you live longer. Vacation Longevity Study In this study, researchers recruited 12,338 people…

13 Reasons Why CHADS-VASc May Not Be the Best for Atrial Fibrillation Stroke Prevention Wouldn't it be great if we could accurately predict who is most at risk for atrial fibrillation strokes?  Despite the aggressive use of blood thinners in the new CHADS-VASc guidelines, there is no proof yet that stroke rates have gone down.  In this article, I discuss 13 reasons why the CHADS-VASc scoring system may not be the best for atrial fibrillation stroke prevention. What is CHADS-VASc?…

4 Reasons Why Eating Nuts Prevent Atrial Fibrillation Wouldn’t it be great if a handful of nuts could prevent atrial fibrillation?  In this article, I'll review the atrial fibrillation nut studies and share what I have learned from treating tens of thousands of atrial fibrillation patients over the last 23 years. The Swedish Atrial Fibrillation Nut Study If you are a nut lover, like me, then you’ll love this most recent study. In this Swedish atrial fibrillation nut study, researchers…

Is Left or Right Side Sleeping Best for Your Heart? Most of my cardiac patients sleep better on their right side.  Is right side sleeping best for your heart?  In this article, I discuss the science of behind right versus left side sleeping. Gravity and Left vs. Right Side Sleeping? Gravity plays a role in where the heart goes during sleep.  For example, if you sleep on your left side, then gravity will pull your heart toward your chest wall.  In contrast,…

Is Weekend Catch Up Sleep Healthy? Getting enough sleep during the workweek is hard.  Wouldn't it be great if weekend catch up sleep could undo any damage from sleep deprivation?  In this study, I review a new study that goes against decades of sleep research. The Longevity Plan Ma Xue, one of the centenarians we came to love and know during our time in China's Longevity Village, taught a timeless principle. "My life is simple. Because of this, it is easy…

9 Things I Would Do To Prevent Atrial Fibrillation Strokes Everyone fears an atrial fibrillation stroke.  Fortunately, most of these strokes are preventable.  As blood thinners are a scary prospect, patients always ask me what I would do.  In this article, I share the nine things I personally would do to prevent atrial fibrillation strokes. Start Here Before we jump in with the nine things I would do to prevent atrial fibrillation strokes, I need to confess that I don't…

4 Best Ways to Lower Your CHADS-VASc Score (How to Safely Get Off Afib Blood Thinners) No one wants to be on a blood thinner.  By optimizing your lifestyle, it is possible to get off your atrial fibrillation blood thinner.  In this article, I'll share the four best ways to lower your CHADS-VASc score. Disclaimer Strokes have to be one of the most devastating complications of atrial fibrillation.  Even if you have optimized all aspects of your lifestyle, you will…

5 Best Ways to Fix Atrial Fibrillation Water Retention No one wants swollen legs.  Besides the unsightly appearance, it often hurts.  With a few simple tweaks, fluid retention can be eliminated for most people.  In this article, I'll share the five best ways to fix atrial fibrillation water retention. Sarah's Story Sarah was 52 years old.  All her life her weight was a little higher than it should have been.  In addition to carrying the extra weight, she was also…

How Do You Diagnose Atrial Fibrillation? If your heart isn't beating right, you want it diagnosed quickly.  Sometimes it can take years before your doctor can make the correct diagnosis.  If you suspect that you might have atrial fibrillation, this article is for you.  In this article, I will teach you how to diagnose atrial fibrillation. Melanie’s Experience Every time Melanie's heart raced uncontrollably, she rushed to the hospital.  She knew that if she could get to the hospital in…

How Do You Know If You Are in Atrial Fibrillation? Sometimes it is hard to know what your heart is doing.  Fortunately, with a few simple tricks, you can tell with 99% accuracy if your heart is out of rhythm.  In this article, I'll teach you how to know if you are in atrial fibrillation. Kim's Experience Kim was never quite sure when she was in atrial fibrillation.  She didn’t get the palpitations that her sister and neighbor got when…

Harvard Scientists Reveal 5 Life Extending Hacks: Your Best Lifestyle for Longevity Wouldn't you like to know the real secret to a long and healthy life?  Based on the latest longevity study, Harvard researchers found five easy life-extending hacks that could get you to age 93.  In this article, I’ll share the very best lifestyle for longevity. What Does it Take to Get to Age 90? The human body is genetically programmed to make it to 90.  As long as…

6 Reasons Why There is an Atrial Fibrillation Dementia Link Besides not feeling well, maintaining brain function is one of the main concerns of people suffering from atrial fibrillation.  Fortunately, studies show that driving atrial fibrillation into remission and optimizing your daily health decisions may preserve long-term cognitive performance.  In this article, I share six reasons why there is an atrial fibrillation dementia link. And I'll also teach you what you can do to optimize brain function even if you…

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Can Atrial Fibrillation Cause a Heart Attack? One of the biggest concerns people have during an arrhythmia is can atrial fibrillation cause a heart attack?  Fortunately, with the right lifestyle and proper treatment, the answer is usually no.  In this article, I'll discuss how you can minimize the risk of a heart attack with atrial fibrillation. Mark's Experience Mark was afraid to exercise. He was sure he was going to have a heart attack if he did anything that was…

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9 Key Findings of the CABANA Study No one wants to be on drugs for the rest of their life to treat a heart arrhythmia called atrial fibrillation (Afib).  In a perfect world, you would have a safe and simple procedure that would make it all go away.  In this article, I'm going to share the results of the most important study that has ever been done for atrial fibrillation, the CABANA Study. Why the CABANA Study Needed to Be…

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Can You Live a Normal Life with Atrial Fibrillation? No one with atrial fibrillation wants to feel like their life is over.  They still want to be able to do everything they did in their 30s, 40s, or 50s. With the right treatment plan, you can absolutely live a normal life with atrial fibrillation. The purpose of this article is to open your eyes to just how much is really possible. Maria's Experience Maria was sure her life was over.…

Mindfulness vs. Tracking: Can you ever stop tracking? We all know what to do.  The problem is doing it.  When it comes to losing weight and exercising daily, can you ever stop tracking?  In this article, I share the reasons behind my recent 10 pound weight gain and discuss mindfulness vs. tracking when it comes to maintaining healthy behaviors. Why I Started Tracking As those of you who have read our bestselling book, The Longevity Plan, know, that when I…

Will Atrial Fibrillation Kill You? Heart problems are scary, and everyone sooner or later asks will atrial fibrillation kill you?  In this article, I'll teach you what you need to do to add extra years to your life even if you have atrial fibrillation. Jeff's Story "Will atrial fibrillation kill you?" Jeff asked me on the day we met. The interesting thing is that he was only 65 and had just finished a half marathon. Somehow he figured that if…

The 5 Best Ways to Diagnose Atrial Fibrillation Isn't it frustrating when doctors can't seem to figure out what is going wrong?  It can be that way with atrial fibrillation that comes and goes.  Atrial fibrillation never seems to happen in the doctor's office.  In this article, I'll teach you the five very best ways to diagnose atrial fibrillation. Mary's Experience Mary's heart never did its thing in the doctor's office.  For years, she had palpitations and a rapid heart beat.  But it…

What Are the Atrial Fibrillation Symptoms? Many people wonder if they might have atrial fibrillation.  Short of doing an EKG, recognizing the symptoms can help you to determine if it is atrial fibrillation or not.  In this article, I'll cover the key atrial fibrillation symptoms to look out for. Bob's Story At 56, Bob thought he was getting old. While he never was the “exercising type,” he always prided himself on being able to do a hard day of work. Bob was a…

5 Ways to Lose Weight with Pasta Everyone knows pasta causes weight gain.  Would you be surprised to learn that scientific studies show the opposite?  In this article, I cover the latest pasta study and share five ways to lose weight with pasta. The Latest Pasta Study In a study published this week in the prestigious British Medical Journal, researchers from Canada pooled together the results of 32 studies looking at 2,448 people.  And what they found goes against what…

How to Bulletproof Your Brain I want to share a message of hope for those of you with a family history of dementia.  According to a new study, one simple habit can cut your risk of dementia by 90%!  In this article, I will teach you how to bulletproof your brain. The Swedish Dementia Study Researchers from Sweden just published a study that rocked the neurology/dementia world.  After following the people in this study for 44 years, researchers found that…

Low Carb or Low Fat: Which is Best? Should you go low carb or low fat for weight loss? I'm guessing you would pick low carbs. However, if I had asked you this same question 20 years ago, the answer would likely have been different.  Would you believe me if I told you that it probably doesn't matter based on a big new study from Stanford University? The Best Low Carb vs. Low Fat Study In this new study, Stanford researchers…

Does atrial fibrillation make you tired? No one wants to feel tired all the time.  Yet, that is what most people suffering from atrial fibrillation endure every day.  While the answer to the question, does atrial fibrillation make you tired is obviously yes, in this article I'll explain why it makes you fatigued and how you can fix this problem. Why does atrial fibrillation cause fatigue? Having spent the last 30 years of my career caring for people with atrial…

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Is Nattokinase the Safest Blood Thinner? Most of my heart patients are scared to death of blood thinners.  No one wants a blood clot, but yet no one wants to bleed to death either. Nattokinase may just be the safest blood thinner you have never heard of.  In this article, I'll teach you everything you need to know about this natural blood thinner. Why I Eat Natto for Breakfast Since my health turn around nearly seven years ago, natto has…

Does Atrial Fibrillation Get Worse Over Time? With the diagnosis of atrial fibrillation, most people want to know does atrial fibrillation get worse over time? While atrial fibrillation is a progressive condition in most people, it doesn't have to be this way.  In this article, I'll teach you what you need to do to stop the disease progression and hopefully make your atrial fibrillation go away. Carrie's Atrial Fibrillation Like 99% of my patients, Carrie wanted to know, does atrial…

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Nobody wants a heart problem.  Fortunately, most heart conditions are very fixable.  In this article, I will answer what is atrial fibrillation and point you on the way to fixing this problem. What is Atrial Fibrillation? Atrial fibrillation is the most common heart rhythm condition.  When your heart is in atrial fibrillation the upper chambers of the heart are no longer beating and your pulse is usually rapid and irregular.  As a result, you will probably experience symptoms of fatigue,…

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