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Source: Harvard Health Blog
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Total 81 results found since Jan 2013.
Tossing flossing?
The burning question in the news last week was this: should you bother flossing?
The answer for decades has been “of course.” And it’s likely you’ve heard something similar from your dentist. I know I have.
But, while the importance of flossing may have been widely accepted, the evidence supporting it turns out to be surprisingly thin. At least that’s the conclusion of health experts who developed the recently released Dietary Guidelines for Americans, 2015-2020. These guidelines are issued every five years by the U.S. Department of Health and Humans Services and the U.S. Department of Agriculture “…to reflec...
Source: New Harvard Health Information - August 17, 2016 Category: Consumer Health News Authors: Robert H. Shmerling, MD Tags: Dental Health Prevention Source Type: news
When hot gets too hot: keeping children safe in the heat
Follow me on Twitter @drClaire
Heat is part of summer — and for the most part, children do fine in the heat. But sometimes, heat can be dangerous, even deadly. As summer heats up — and as much of the country sits in a heat wave — it’s important to know about those dangers so that you can keep children safe. Here’s what you need to know about heat and children:
Never leave a child in a car in the heat. Children’s bodies can heat up incredibly quickly — leading to damage to organs and even death. Every year children die from being in a hot car — because their caregiver thought they would be fine, because an e...
Source: New Harvard Health Information - July 26, 2016 Category: Consumer Health News Authors: Claire McCarthy, MD Tags: Children's Health Parenting Prevention Safety Source Type: news
E-cigarettes: Good news, bad news
Follow me at @JohnRossMD
Americans are confused about electronic cigarettes. A recent poll showed that the public was about evenly split between those who thought that electronic cigarettes, or e-cigarettes, were less harmful than conventional cigarettes, and those who believed that e-cigarettes were as bad as or worse than regular cigarettes.
Unfortunately, there is no long-term safety data about e-cigarettes. What information we do have suggests that e-cigarettes have a complex mix of potential harms and benefits.
E-cigarettes: Less deadly than regular cigarettes
First, the good news: e-cigarettes are almost certainly le...
Source: New Harvard Health Information - July 25, 2016 Category: Consumer Health News Authors: John Ross, MD, FIDSA Tags: Behavioral Health Cancer Lung disease Prevention Smoking cessation Source Type: news
For the good of your heart: Keep holding the salt
Your doctor has probably told you to cut back on salt, especially if you have high blood pressure. For years we’ve understood that excess salt raises blood pressure and increases deaths from heart disease. The guilty element is sodium, which pairs with chloride to form common salt. So when the journal Lancet recently published a study reporting that low dietary sodium was associated with an increased risk of heart disease and death, controversy was predictable.
A wealth of rigorous scientific studies supports a link between excess sodium intake and high blood pressure, heart attacks, and strokes. Yet the Lancet paper rep...
Source: New Harvard Health Information - July 11, 2016 Category: Consumer Health News Authors: Naomi D. L. Fisher, MD Tags: Healthy Eating Heart Health Hypertension and Stroke Prevention Source Type: news
A bummer for kids: Nasal flu vaccine not effective
Follow me at @drClaire
Every year, many of my patients have been able to skip the needle — and still get vaccinated against the flu. That was the great thing about the nasal spray version of the flu vaccine, known as the LAIV (live attenuated influenza vaccine): kids scared of needles could get a squirt up each nostril and be all set.
This coming flu season, everyone is getting the shot.
It turns out that the nasal spray just didn’t work that well. Despite studies from the 2002-2003 and 2004-2005 flu seasons that seemed to show that the nasal spray actually worked better than the shot in children ages 2-8 years, over t...
Source: New Harvard Health Information - June 28, 2016 Category: Consumer Health News Authors: Claire McCarthy, MD Tags: Children's Health Cold and Flu Infectious diseases Parenting Prevention Source Type: news
Your resting heart rate can reflect your current — and future — health
One of the easiest, and maybe most effective, ways to gauge your health can be done in 30 seconds with two fingers. Measuring your resting heart rate (RHR) — the number of heart beats per minute while you’re at rest — is a real-time snapshot of how your heart muscle is functioning.
It’s easy to do. Place your index and middle finger on your wrist just below the thumb, or along either side of your neck, so you can feel your pulse. Use a watch to count the number of beats for 30 seconds and double it to get your beats per minute. Repeat a few times to ensure an accurate reading. An RHR between 60 and 100 beat...
Source: New Harvard Health Information - June 17, 2016 Category: Consumer Health News Authors: Matthew Solan Tags: Exercise and Fitness Health Heart Health Prevention Source Type: news
Farewell to the fasting cholesterol test?
At a recent meeting I offered a visitor lunch which she declined with obvious regret. She was hungry, and it was noon. But she was headed to her annual physical, and eating beforehand would mean returning another morning for a fasting cholesterol level. Most of us can relate to her annoyance, but thankfully this may soon be a thing of the past.
Doctors have traditionally ordered cholesterol tests to be drawn after an overnight fast. But this requirement causes a significant burden on both sides of the health care equation. Most people hate to fast. Skipping meals is particularly difficult for active people, people with dia...
Source: New Harvard Health Information - June 16, 2016 Category: Consumer Health News Authors: Naomi D. L. Fisher, MD Tags: Health Heart Health Prevention Screening Tests and procedures Source Type: news
3 reasons your child shouldn’t go “gluten-free” (unless your doctor says so)
Follow me at @drClaire
There is a puzzling and worrisome new phenomenon that I am seeing as a pediatrician: parents who are putting their children on gluten-free diets.
It’s puzzling because in the vast majority of cases it isn’t necessary — and it’s worrisome because, although parents are doing it because they think it’s healthy, a gluten-free diet can be very unhealthy for children.
Gluten is a protein found in wheat, rye, barley, and some other grains. It’s in bread and other baked goods, cereals, pastas — and in many other foods in small amounts. For people with celiac disease, even those small amounts ca...
Source: New Harvard Health Information - June 7, 2016 Category: Consumer Health News Authors: Claire McCarthy, MD Tags: Children's Health Healthy Eating Parenting Source Type: news
The many ways volunteering is good for your heart
If you do volunteer work, whether it’s at a school, soup kitchen, or senior center, perhaps you’ve experienced the emotional rewards of donating your time. What you might not realize, however, is that volunteering may offer some added advantages for your heart.
“There’s a growing body of research showing that volunteering is associated with better physical and mental health outcomes,” says Eric S. Kim, a research fellow at the Harvard T.H. Chan School of Public Health. A study he co-authored, published in Social Science and Medicine earlier this year, found that volunteers were more likely to use preventive healt...
Source: New Harvard Health Information - June 3, 2016 Category: Consumer Health News Authors: Julie Corliss Tags: Behavioral Health Healthy Aging Heart Health Prevention Source Type: news
What to do when blood test results are not quite “normal”
Picture this: you’re reading the results of your recent bloodwork, and you notice some numbers are teetering on the edge of the normal range. Should you be concerned? “It’s tricky, because in some tests, a borderline result makes no difference. In others, it might indicate an important change in health that we need to follow or act on,” says geriatrician Dr. Suzanne Salamon, assistant professor at Harvard Medical School.
About normal ranges and interpreting the numbers
When you look at a printout of your lab results, you’ll find the normal ranges for each blood test next to your personal results. For example, if ...
Source: New Harvard Health Information - June 2, 2016 Category: Consumer Health News Authors: Heidi Godman Tags: Tests and procedures blood test Source Type: news
What to do when blood test results not quite “normal”
Picture this: you’re reading the results of your recent bloodwork, and you notice some numbers are teetering on the edge of the normal range. Should you be concerned? “It’s tricky, because in some tests, a borderline result makes no difference. In others, it might indicate an important change in health that we need to follow or act on,” says geriatrician Dr. Suzanne Salamon, assistant professor at Harvard Medical School.
About normal ranges and interpreting the numbers
When you look at a printout of your lab results, you’ll find the normal ranges for each blood test next to your personal results. For example, if ...
Source: New Harvard Health Information - June 2, 2016 Category: Consumer Health News Authors: Heidi Godman Tags: Tests and procedures blood test Source Type: news
Can aspirin protect against cancer?
The other day, a fit 50-year-old man came to me for a visit to review his health. As we discussed his (generally good) efforts to take care of himself, he said, “I’ve been wondering if I should take an aspirin every day. I read somewhere that it can prevent cancer.”
As a clinician, I really love it when people come in with questions that stretch my thinking. I have a stock set of answers to the “does aspirin prevent heart disease” question, but I didn’t have an easy answer to the cancer prevention question. What were the data? What should I be recommending? Is it true for everyone? Or maybe just for some people...
Source: New Harvard Health Information - May 20, 2016 Category: Consumer Health News Authors: Lori Wiviott Tishler, MD, MPH Tags: Cancer Drugs and Supplements Health Heart Health Prevention Source Type: news
Diabetes drug pioglitazone could get personal: Neither panacea, nor peril
When I was in training, one of my beloved mentors declared, “I never use a drug until it’s been on the market for 20 years.” I was young enough then that I couldn’t fathom being a doctor for 20 years, let alone waiting two decades to use a new drug. As my career has progressed, I’ve seen many new drugs released to the market. Some of them are truly miraculous, bringing people longer, healthier, and more productive lives. Many of them have not withstood the test of time. More than a few have even been taken off the market. Even though the Food and Drug Administration diligently reviews each new medicine before it...
Source: New Harvard Health Information - May 5, 2016 Category: Consumer Health News Authors: Lori Wiviott Tishler, MD, MPH Tags: Diabetes Drugs and Supplements pioglitazone thiazolidinediones Source Type: news
High blood pressure: Why me?
“I go to the gym, and I never add salt. So why do I have high blood pressure?” Despite its astonishing prevalence of one in three Americans, many people struggle with the diagnosis of high blood pressure, or hypertension. It’s worth exploring why, because being an active participant in your care is crucial for optimal blood pressure control.
Certain features make any diagnosis easier to accept:
First, people are more likely to accept a diagnosis if they have symptoms. A person with cough and fever will believe a diagnosis of pneumonia. But someone who feels fine would not.
Next, people more readily accept a diagnosi...
Source: New Harvard Health Information - May 2, 2016 Category: Consumer Health News Authors: Naomi D. L. Fisher, MD Tags: Behavioral Health Health care Heart Health Hypertension and Stroke Prevention Screening high blood pressure Source Type: news
