December 9th, 2011 by HarvardHealth in Health Tips, Research
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These days, most adults are overweight, not active, or both. If you could change just one—become active or lose weight—which would be better?
At least for men, being more fit may have a bigger health payoff than losing weight, according to a new study of more than 14,000 well-off middle-aged men who are participating in the Aerobics Center Longitudinal Study. Researchers followed their health, weight, and exercise habits for 11 years. They estimated how physically fit the men were by calculating their metabolic equivalents (METs) from a treadmill test.
Compared with men whose fitness declined over the course of the study, those who maintained their fitness levels reduced their odds of dying from cardiovascular disease or any other cause by about 30%, even if they didn’t lose any excess weight. Those who improved their fitness levels saw a 40% reduction.
Body-mass index (BMI), a measurement that takes weight and height into account, was not associated with mortality. The results were published in the journal Circulation.
What is “fitness”
Fitness is a measure of Read more »
*This blog post was originally published at Harvard Health Blog*
December 5th, 2011 by RyanDuBosar in News, Research
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Too much vitamin D can lead to 2.5 times the risk of atrial fibrillation, researchers found.
To determine if there is a correlation between too much vitamin D and increased heart risk, researchers examined blood tests from 132,000 patients in the Intermountain Healthcare Center database. Results were presented at the American Heart Association Scientific Sessions in November, and appeared at the Intermountain website.
Patients did not have any known history of atrial fibrillation, and all had previously received a vitamin D assessment as part of their routine care. Patients were then placed into categories to compare levels of vitamin D: low (less than 20 ng/dL), low/normal (21-40 ng/dL), normal (41-80 ng/dL), high/normal (81-100 ng/dL), and excess (more than 100 ng/dL).
Patients with low, low-normal, normal and high-normal levels of vitamin D had no increased risk of atrial fibrillation. However, atrial fibrillation risk Read more »
*This blog post was originally published at ACP Hospitalist*
December 1st, 2011 by John Mandrola, M.D. in Health Tips, Research
1 Comment »
There was important news this month on statin drugs. As one of the world’s most effective and commonly used medications, statins provide great writing topics. Lots of people have high cholesterol–including cyclists. Lots of people are interested in avoiding our mostly deadly disease.
I’d like to tell you about a recently-published (Lancet) landmark study that should quell safety concerns over statin drugs.
The punch line after I tell you the study’s results are short and sweet. Scroll down if you wish. But first, statin drugs are misunderstood enough to warrant a little blog-like simplicity. Let’s start with some background.
A brief statin review:
Statin drugs are best known for their cholesterol-lowering properties. The notion is simple: Read more »
*This blog post was originally published at Dr John M*
November 24th, 2011 by Toni Brayer, M.D. in Research
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I live on the West Coast, where it is rare to see a smoker. Because it is not socially accepted, smokers are not out in the open. They lurk behind buildings to take a smoke break at work and I don’t even own an ashtray for friends because none of my friends smoke. But San Francisco isn’t the rest of America. In 2010 there were 45.5 million Americans who smoke, with men smoking more than women. Tobacco remains the single largest preventable cause of death and disease in the United States. Each year approximately 433,000 people die of smoking-related illness.
Here are some more stats on American adult smokers. The highest prevalence is American Indians/Alaska Natives (31.4%) followed by whites (21%). Smoking incidence decreases with increasing education and improved economics. By region, the Midwest has the most smokers in Oklahoma, Arkansas, Mississippi, Louisiana, Kentucky, Ohio and West Virginia (22-27%). That is huge.
California and Utah have the lowest percentage of adult smokers at Read more »
*This blog post was originally published at EverythingHealth*
November 7th, 2011 by Michael Craig Miller, M.D. in Research
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If your child is being treated for attention deficit hyperactivity disorder (ADHD), you may have one less thing to worry about today. A study involving 1.2 million children and young adults provided reassuring evidence that the drugs used to treat ADHD do not increase the risk of death from heart disease.
Researchers, who published their results yesterday in the New England Journal of Medicine, analyzed medical records from a nationwide private insurance plan along with health plans based in Tennessee, California, and Washington State. They compared children taking stimulant drugs (like Ritalin and Adderall) that are commonly used to treat ADHD to children not taking these drugs.
Among all of the children, heart attack, stroke, or sudden death were rare, affecting a little more than 3 in every 100,000 children per year. Cardiac problems were no more common among children using a stimulant as among those not taking one.
The study Read more »
*This blog post was originally published at Harvard Health Blog*
