May 21st, 2011 by PJSkerrett in Health Tips
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Many Americans are remarkably unaware and uninformed about arthritis, a disease that affects about one of every five U.S. adults. Arthritis runs under the public’s radar because it isn’t a killer like heart disease and cancer. Yet it can take a huge toll on the quality of life through the pain and problems it causes. Arthritis is often viewed as an inevitable part of growing old. But it isn’t—there are many things you can do to keep your joints healthy.
May is National Arthritis Awareness Month. It isn’t aimed at people with arthritis—they’re quite aware of it already. It’s for the rest of us, some of whom are unknowingly on their way to living with this condition, and others who live with, work with, or play with folks who have it.
If you have arthritis, a new Special Health Report from Harvard Health Publications called Arthritis: Keeping Your Joints Healthy, can help you manage your condition. At the link you’ll find a description of the report, table of contents, and an excerpt. If you don’t have arthritis, the Arthritis Foundation offers 10 tips for protecting your joints. These include: Read more »
*This blog post was originally published at Harvard Health Blog*
May 11th, 2011 by PJSkerrett in Health Tips, Research
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A paper in a recent edition of Journal of the American Medical Association (JAMA) offers the contradictory conclusion that taking in less salt—a key goal of U.S. health and dietary recommendations—is bad for you. But before you roll your eyes and groan about flip-flops in science, know that this study isn’t the kind of work on which you or anyone should base dietary decisions.
In this study of 3,681 men and women from Belgium, Bulgaria, Italy, Poland, Romania and Russia whose health was followed for eight years, participants with the lowest sodium excretion (which is a good measure of sodium intake) were 56% more likely to have died from cardiovascular disease than those with the highest sodium excretion. Among the nearly 2,100 participants with normal blood pressure at the study’s start, sodium excretion (sodium intake) had no effect on the development of high blood pressure.
These are startling findings. If true, they would undercut major programs by the U.S. government to reduce Americans’ intake of salt—the main source of sodium—from prepared and processed foods and at home. Read more »
*This blog post was originally published at Harvard Health Blog*
April 6th, 2011 by PJSkerrett in Health Tips
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How much vitamin D is enough, and what’s the best way to get your daily dose of the so-called sunshine vitamin? It depends who you ask.
I just attended the latest Forum at the Harvard School of Public Health. The title, “Boosting Vitamin D: Not Enough or Too Much?” was a tip-off that we weren’t going to get a simple take-home message. (Watch a video of the event beginning Wednesday, March 30.)
Some background: Vitamin D isn’t really a vitamin. It’s a hormone. The body makes it when sunlight strikes the skin. This converts a cousin of cholesterol into a substance that ultimately becomes vitamin D. It is best known for helping the digestive system absorb calcium and phosphorus, so it is important for bone health. New research suggests—emphasis on suggests—that vitamin D may also be involved with regulating blood pressure, fighting cancer, and improving the immune system. Read more »
*This blog post was originally published at Harvard Health Blog*
March 28th, 2011 by PJSkerrett in Health Tips, News
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The condition that took Elizabeth Taylor’s life affects millions of Americans.
Reports of Elizabeth Taylor’s death focused, as they should, on her life, not on her death from heart failure. But given how common this condition is—the American Heart Association says nearly 6 million Americans are living with heart failure and it kills about 300,000 each year—a little attention to it might be a good idea.
What is heart failure?
The term “heart failure” is a scary one, conjuring up images of a heart that is suddenly unable to work. In truth, it represents a gradual decline in the heart’s ability to pump enough blood to meet the body’s needs. As the heart weakens, all parts of the body suffer the consequences. Read more »
*This blog post was originally published at Harvard Health Blog*
March 15th, 2011 by PJSkerrett in Health Tips, News
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One of the most abundant substances in the cloud of radioactive steam released by a failing nuclear power plant is iodine-131 — a radioactive form of the element iodine that is found throughout nature. Iodine-131 poses a special health risk because of its cancer-causing effect on the thyroid gland.
The small, butterfly-shaped thyroid sits just below the voice box. From this perch, it controls how fast every cell in the body changes food into energy. The gland’s main product, thyroid hormone, governs the function of the digestive tract, brain, heart, nerves, muscles, bones, skin, and more.
Iodine is a key ingredient that goes into making thyroid hormone. We get this element from ocean-caught or ocean-farmed fish and shellfish, milk, cheese, yogurt, eggs, and fruits and vegetables grown in iodine-rich soil.
The human body is surprisingly good at absorbing iodine and storing it in the thyroid gland. That’s a problem when iodine-131 is released into the atmosphere. The thyroid stores it as readily as natural, non-radioactive iodine. As iodine-131 builds up in the thyroid gland, it emits bursts of radiation that can damage DNA and other genetic material. Such damage can remove the normal limits to cell growth and division. Unchecked growth of thyroid tissue is thyroid cancer.
Iodine-131 gets into the body several ways. A person can breathe in radioactive steam released by a nuclear power plant. Fallout — radioactive particles that fall out of the atmosphere and settle onto plants, soil, and water — further adds to the burden when a person eats iodine-131 enriched fruits and vegetables or drinks water containing the isotope. Milk is another vehicle — cows that eat grass sprinkled with iodine-131 make milk that contains it. Read more »
*This blog post was originally published at Harvard Health Blog*
