Staying Healthy Archive

Ask the doctors

Q. I'm very allergic to poison ivy. My spouse currently has a bad poison ivy rash that he got while trimming some bushes in our yard. I'm afraid I'm going to get a rash from him. Is it contagious?

A. Good news: poison ivy rashes are not contagious. You will get a rash from poison ivy only if you come into contact with urushiol oil, which is the plant oil in poison ivy that triggers the rash. In addition, a poison ivy rash, even one with open blisters, won't spread to other areas of the body. The rash only occurs on parts of the body that were actually exposed to the plant oil. Poison ivy rashes can appear to spread if urushiol oil is trapped under your fingernails and you scratch an itch. While you can't get a rash from coming from your spouse, you can get it from clothing or other items that have the plant oil on them. For example, the clothes your spouse was wearing that came into contact with the poison ivy plant. Poison ivy oil can cling to garden tools or even pet fur. The oil from poison ivy is known to linger. According to the FDA, it can stick around on surfaces, sometimes for years, until it is washed away using water or rubbing alcohol. So be certain that all surfaces that are potentially contaminated are cleaned thoroughly to reduce your risk.

Make sure your diet meets the recommended mineral targets.

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Gold, silver, and platinum get all the attention as the world's most precious metals. But they're more precious for the global economy than for human health. Instead, other metals and minerals (metals are one type of mineral) are more important for our health (see "What essential metals do for us"). Indeed, some of them are so important that we can't live without them. "Each one plays a role in hundreds of body functions. It may take just a very small quantity of a particular mineral, but having too much or too little can upset a delicate balance in the body," says Dr. Bruce Bistrian, chief of clinical nutrition at Beth Israel Deaconess Medical Center.

They're packed with nutrients but high in starchy carbohydrates.

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Root vegetables — like turnips, rutabagas, and parsnips — may not be the sexiest foods on the table. But they're big celebrities in a number of cuisine trends like the "vegetable forward" movement (which elevates vegetables into creative entrees and side dishes) and root-to-stem cooking (which uses every part of a vegetable, including the tops, stems, and skins).

While it's fun to use old standbys in more interesting ways (like roasted parsnips with pistachio and lemon), it's important to eat root vegetables judiciously. "They are so high in carbohydrates that they are more like grains than greens. It makes more sense to put them in the same category as breads, rice, or pasta," says dietitian Teresa Fung, adjunct professor in the nutrition department at the Harvard T.H. Chan School of Public Health.

Observe these caveats if you use over-the-counter drugs or dietary supplements to help you sleep.

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It's 2 a.m. and you can't sleep. Is it okay to take a nonprescription remedy? "They're not meant for the long term, but it may be okay for an occasional night of problems with sleep," says sleep expert Dr. Lawrence Epstein, an instructor in medicine at Harvard Medical School.

But which option should you reach for? Drugstore shelves are lined with a dizzying array of products promising a good night's sleep. They fall into two categories: nonprescription medications and dietary supplements.

Your sleeping cycle changes as you age, but there are ways to ensure you get a good night's rest.

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Most men experience bouts of sleeplessness as they age. They have trouble going to sleep, wake up in the night, and then have trouble falling back to sleep.

Most of this has to do with normal aging, but don't think you need less sleep because you are older. "Research has shown that your sleep needs stay constant throughout adulthood," says Dr. Lawrence Epstein, associate physician with the Division of Sleep and Circadian Disorders at Harvard-affiliated Brigham and Women's Hospital. "Instead, it's your sleep patterns that change, and that is what can interfere with sleep quality."

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To eat a healthier diet, you need to combine nutritional science, a jolt of common sense, and pure enjoyment. Most of us know that fresh salad, berries, and slowing down when eating are better for us than wolfing down energy bars and sweets. But how to make that leap from our current habits to healthier ones?

Here are six ways you can eat healthy, delicious meals, and really enjoy what you're eating.

Vitamin and mineral supplements from a bottle simply can't match all the biologically active compounds teeming in a well-stocked pantry.

By focusing on the big picture, it's easy to get plenty of the vitamins, minerals, and other micronutrients you need to keep you healthy and prevent disease. Here are some tips.

Back pain is one of the top reasons that people begin to lose mobility in middle age. Pain can keep people from engaging in physical activity, making it more difficult for them to maintain a healthy weight and keep up their strength, stamina, and balance as they age. So treating and managing back pain that results from injuries or health problems is crucial for staying on the path of a healthy and active life.

Considering that most people spend roughly a third of their lives lying in bed, choosing the right mattress is essential for managing low back pain. It can make the difference in whether you can sleep at night and function the next day.

Of your five senses, which one are you most afraid of losing? If you're like most people, your answer is your ability to see. Because  our eyesight is so precious, it's no wonder that myths abound about your eye health, what can damage our eyes — , and what can protect them. Here, we debunk five common myths — and tell you how to truly keep your eyes healthy.

Myth: Doing eye exercises will delay the need for glasses.
Fact: Eye exercises will not improve or preserve vision, help your eye health, or reduce the need for glasses. Your vision depends on many factors, including the shape of your eyeball and the health of the eye tissues, neither of which can be significantly altered with eye exercises.