Having an elevated resting heart rate in old age may be an independent risk factor of dementia, according to a study at Karolinska Institutet published in Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association. Since resting heart rate is easy to measure and can be lowered through exercise or medical treatment, the researchers believe that it may help to identify people with higher dementia risk for early intervention.
The number of people living with dementia is expected to increase to 139 million globally by 2050, from 55 million in 2020, according to the organisation Alzheimer’s Disease International. Currently, there is no cure for dementia, but growing evidence suggests that maintaining a healthy lifestyle and cardiovascular health could help delay the onset of dementia and ease symptoms.
While a slow resting heart rate is generally considered a good thing, investigators have some of the first evidence that if that rate decreases rapidly as children move into young adulthood, it’s an indicator that cardiovascular disease may be in their future.
Medical College of Georgia investigators report a significant association between a faster decrease in resting heart rate from childhood to adulthood and a larger left ventricle, the heart’s major pumping chamber, over a 21-year period in hundreds of individuals who were healthy at the start.
The faster decrease in heart rate also was associated with a higher level of pressure inside the blood vessels of the body, which the heart has to pump against to get blood and oxygen out, they write in the journal Acta Cardiologica. The associations were generally stronger in Blacks.
Keeping track of your heart rate is probably a good thing. Obsessing about it probably isn’t, according to the American Heart Association.
That’s one drawback of the increasing popularity of wearable devices that constantly monitor heart rates, said Dr. Tracy Stevens, a cardiologist at Saint Luke’s Mid America Heart Institute in Kansas City, Missouri.
“I’ve had people suffer significant injuries when they’re trying to check their heart rate while exercising,” she said. “They take a hand off their treadmill and shoot right off the back and fall off.”
Even without a monitor, the preoccupation can have consequences.
“They’ll push too hard on their carotid arteries to check their pulse, which instigates a reflex that drops their blood pressure, and they pass out,” Stevens said. People shouldn’t put “too much emphasis on a number.”
A 2013 study published in the journal Heart of nearly 3,000 men in Denmark showed the risk of death increased by 16% for every 10 beats per minute increase in resting heart rate. But Stevens said she is far more focused on high blood pressure, obesity, smoking and other risk factors for heart disease.
I love my Apple Watch and have written several posts about how it helps me to keep fit. Now comes a study from Scripps that makes me feel even better about it. You can read further about the watch on my Page – How my Apple Watch promotes my good health.
If you wear a smart watch or fitness tracker, you’re likely capturing an important but currently underused vital sign—resting heart rate—that soon may serve as a valuable window into your health, according to new study by the Scripps Research Translational Institute.
In a heart study of unprecedented scale, researchers evaluated the resting heart rate of more than 92,000 individuals for over 32 million days using de-identified data from wrist-worn devices. The scientists found that average resting heat rate varied widely between individuals, with norms that differed by up to 70 beats per minute. Less than 10 percent of the variability could be attributed to expected factors such as age, sex, body mass index or daily sleep duration. However, for individuals, resting heart rate was much more consistent over the two-year study period, with infrequent episodes outside of their norms.
As a lifetime music lover, I was pleased to read this item on it value in the Harvard Health Blog by Julie Corliss, Executive Editor, Harvard Health Letter. One of my happiest discoveries in the past few years was a blue tooth speaker on a water bottle. I have my choice of over 1000 tunes on my iPhone to accompany me on the bike. Riding to music beats my previous soundless rides.
What’s your “cheer up” song? That question popped up on a recent text thread among a few of my longtime friends. It spurred a list of songs from the ‘70s and ‘80s, back when we were in high school and college. But did you know that music may actually help boost your health as well as your mood?
Music engages not only your auditory system but many other parts of your brain as well, including areas responsible for movement, language, attention, memory, and emotion. “There is no other stimulus on earth that simultaneously engages our brains as widely as music does,” says Brian Harris, certified neurologic music therapist at Harvard-affiliated Spaulding Rehabilitation Hospital. This global activation happens whether you listen to music, play an instrument, or sing — even informally in the car or the shower, he says. Continue reading →
This article was first published in Rotary News on April 2018.
There are two aspects to ageing. Your chronological age is the calculated number of years you have lived. Your biological or “real” age refers to the current condition of your physiological body at its very basic cellular level. These two are not necessarily one and the same. An individual may be chronologically 30, but might have the body and mind of a 55-year-old. He could be overweight, lethargic, with poorly conditioned muscles, poor memory, productivity and low stamina. He may be stressed, depressed, with a laundry list of medical conditions and pills to manage them.
On the contrary, someone could be 50 years old chronologically but have an actual age of a 35-year-old in terms of energy, stamina, strength, and pure joi de vivre.
Factors that ascertain your Real or Biological age
Traditional Chinese Medicine has been tracking and making healthcare based decisions off of a persons heart rate for centuries (actually, even longer than that based on a lot of accounts!). This is because the rate, quality, and regularity of the heart beat is a direct marker of the state of your entire body…and since the heart rate is always present and easy to access, it’s a really handy thing to trend!
Nowadays, heart rate monitors are often used as a marker of activity and calorie consumption. And while they don’t give you information on the quality of your heart rate, I believe they can be used for much more than just losing some fat.
Additionally, compared to a lot of other health markers, heart rate monitors come in a variety of forms and most of them are relatively affordable. (Like anything having to do with preventable medicine, it’s important to…
Not long ago I posted some logistical suggestions from Harvard on aging. Now comes the Mayo Clinic with some excellent internal insights.
“As you age, your heart rate becomes slightly slower and your heart might become bigger. Your blood vessels and your arteries also become stiffer, causing your heart to work harder to pump blood through them. This can lead to high blood pressure (hypertension) and other cardiovascular problems.
“What you can do to promote heart health:
• Include physical activity in your daily routine. Try walking, swimming or other activities you enjoy. Regular moderate physical activity can help you maintain a healthy weight, lower blood pressure and lessen the extent of arterial stiffening.
• Eat a healthy diet. Choose vegetables, fruits, whole grains, high-fiber foods and lean sources of protein, such as fish. Limit foods high in saturated fat and sodium. A healthy diet can help you keep your heart and arteries healthy.
• Don’t smoke. Smoking contributes to the hardening of your arteries and increases your blood pressure and heart rate. If you smoke or use other tobacco products, ask your doctor to help you quit.
• Manage stress. Stress can take a toll on your heart. Take steps to reduce stress — or learn to deal with stress in healthy ways.”
It’s true that everyone already knows all of these but I think it is good to have them repeated by a reputable source to get us going in the right direction.
One of the most important measurements we can know about ourselves is our resting heart rate. Yet most people don’t know it. They can give you their cholesterol count (usually the total, not the breakdown of HDL and LDL see previous post – How to Improve your cholesterol numbers), but unless the person has recently visited his doctor he will be stumped when it comes to his resting heart rate, or its relevance to his overall health..
WebMD reported, “For most people, a normal resting heart rate is between 60 and 90 beats a minute,” according to Edward F. Coyle, PhD. The professor of kinesiology and health education at the University of Texas at Austin and director of the university’s Human Performance Laboratory, says. “Athletic training can lower that rate by 10 to 20 beats per minute.
“Regular aerobic exercise makes your heart stronger and more efficient, meaning that your heart pumps more blood each time it contracts, needing fewer beats per minute to do its job.”
Edward R. Laskowski, M.D., Mayo Clinic physical medicine and rehabilitation specialist puts the normal resting heart rate between 60 and 100 beats per minute. “Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats a minute.”
The upper end of the range is relevant. Gordon F. Tomaselli, MD, professor of medicine at Johns Hopkins University School of Medicine in Baltimore, told WebMD, “A number of studies have shown that, even within the normal range, a high resting heart rate is associated with an increased risk for ischemic heart disease, stroke, and sudden cardiac death.”
Having written about flu season for the past few months, when I started getting head cold symptoms last week and got nervous. In addition, an arctic freeze struck Chicago which has kept me off my bike. I found that working out in the health club, I was feeling really wiped out from a light workout. I actually napped afterwards. That and the head cold symptoms were enough for me. I booked a doctor visit. Mr. Conservative wasn’t taking any chances. I had gotten my flu shot early, but didn’t want to take any chances. As I recommended to readers, I had gotten my flu shot early, but didn’t want to take any chances. You can read further on How to Fight the Flu elsewhere in the blog.
Here’s how bad the weather has been, “Chicago’s coldest blast of air in 2 years is easing—but slowly. By midnight Tuesday, the area moved into a 55th consecutive hour of sub-20-degree thermometer readings and 46 hours with wind chills below zero. Tuesday’s 11-degree high and 1-below morning low put the day into the record books as the city’s coldest of the past two years,” according to the blog of Tom Skilling, the awesome local meteorologist.
The walk to the doctor’s office over a mile was a bracing start to the day. Continue reading →
Chicago has just gone 307 consecutive days without a one inch snowfall. That is the longest such spell in 54 years. And, might I add, most welcome to me as a bicycle rider. Because of this snow drought, I have been able to ride many more times in these waning days of December than I would normally. As a result, I will post my biggest total mileage for a year in my life in just three more days – over 8000 miles.
The view looking west on Chicago’s Riverwalk with skyline in the distance
As you can see from the photos, the snow looked kind of pretty falling on the Riverwalk. However, look closely at the second photo taken on the next morning. Those patches of gray and white are ice patches and diabolical for a bicyclist.
Looking east on the following morning
A sheet of ice is very simple to navigate, you just get off the bike and walk it till you are past the ice. But, sporadic ice patches are a totally different story. When I ride, I try to keep my heart rate in the target zone. For a septuagenarian like myself that requires a speed of around 12 miles an hour. Doesn’t sound very fast when you imagine yourself in your car inching along at 12 mph. On a bike, though, you are traveling at about 17 feet per second. And you aren’t strapped in to a cushy seat. You have a helmet and you are flying through the air riding a pair of skinny wheels. As the guy who has fallen at that speed and broken bones, I can attest that it is fast enough to get into trouble. Continue reading →