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A new study found that mice lacking a certain protein in their sperm were infertile. The study provides valuable insight into male infertility and paves the way for further advancements in infertility.

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A Mayo Clinic study has identified a cardiac gene as a link to sudden death syndrome (SIDS).

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Boys were two to three times more likely than girls to be affected by reading disabilities, according to a Mayo Clinic study of 5,718 children in Rochester, Minn.

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A Mayo Clinic study shows that prophylactic removal of both breasts reduces the risk of a subsequent breast cancer by 89.5 percent to 100 percent in women known to be carriers of mutations in the BRCA1 and BRCA2 susceptibility genes.

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Mayo Clinic has developed a new DNA test to rapidly identify anthrax in human and environmental samples. Roche Diagnostics is making the test widely available to public health agencies, hospital laboratories and reference laboratories in the United States and other countries. The new test can identify the presence of anthrax in less than one hour instead of days.

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Mayo Clinic has developed a new DNA test that rapidly assesses possible anthrax samples. Mayo Clinic has been working with the federal government to make the test formula available to federal agencies who request it, and is collaborating with an outside company to make the test available to laboratories for large-scale local testing across the nation.

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A new study, which found that women in a population center of western Africa need more energy than men based on their work burden, sets the stage for development of a model to research nutritional needs of women throughout the world. Mayo Clinic participated in the study led by the United Nations Food and Agriculture Organization.

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Colesevelam hydrochloride appears to be an effective lipid-lowering agent that significantly reduces low-density lipoprotein cholesterol levels, according to a study.

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Your child or grandchild wants to -- again -- pierce his or her upper ear. Is it safe? It's generally not a good idea. That's because an infection in the upper ear can quickly lead to cartilage damage and serious, permanent deformity of the ear.

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Your big toe is red hot, swollen and so tender that even the weight of the blanket makes you wince in pain. The cause could be gout, a joint disorder characterized by acute inflammation.

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Laryngitis occurs when your vocal cords are swollen or inflamed and can't vibrate normally. Generally, laryngitis clears up quickly with home remedies such as drinking plenty of fluids, sucking on lozenges or hard candies, and resting your voice.

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Do you find yourself always looking for the nearest bathroom wherever you go? Do you plan your schedule around a frequent need to urinate? And, do you visit the bathroom several times during the night? If so, you may have an overactive bladder.

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Multiple Sclerosis is a chronic disease that is a great challenge to cope with, in large part because it's so unpredictable. It can be mild and barely noticeable, or severe enough to cause great disability. It's permanent; often the effects come and go over the years and you never know if and when a flare-up might occur. Fortunately, there are many treatments that are proven effective and promising new therapies are on the horizon.

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Need another reason to eat healthy? According to the Mayo Clinic Women's HealthSource Special Report, fruits and vegetables may help save your skin.

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Mayo Clinic researchers have found that the intact mutant protein apparently kills brain cells in patients with Huntington's Disease by grabbing onto its normal counterpart and other key players in the cell and drawing them into bundles. It is suspected this action prevents the targets from performing their normal functions in the cell.

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Older patients diagnosed with mid-stage colon cancer benefit as much from chemotherapy after surgery as younger patients with the disease, according to a study led by the North Central Cancer Treatment Group, a clinical trials cooperative group based at Mayo Clinic in Rochester, Minn.

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A substantive shortfall of anesthesia personnel exists this year and will continue for years to come.

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Just can't seem to get a good night's sleep anymore? Sleep patterns do change with age, but they don't have to disrupt your life, according to Medical Essay.

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A blood test may be an important predictor of the recurrence of cancer in men who have had their prostate surgically removed.

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If you have chest pain (angina) that is not controlled by medication, you may be a candidate for a nonsurgical outpatient treatment to improve your circulation.

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Excessive gas most of the time? Diet changes could help. Try avoiding these foods one at a time to see if the gas subsides.

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If, at last count, your level of HDL (good) cholesterol was 35 milligrams per deciliter (mg/dL), you probably were told that it was fine. Well, you may hear a different story the next time you visit your doctor. The National Cholesterol Education Program has issued new guidelines for cholesterol testing and control for the first time since 1993.

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Everyone has anxiety now and again. Worry about a loved one or anxiety resulting from a disagreement is perfectly natural. In fact, anxiety is part of the survival instinct that helps us react to real danger. But you can suffer from too much anxiety. A variety of anxiety disorders affect about 25 million Americans.

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One-third of U.S. adults over the age of 65 -- and half of those over 75 -- are hearing impaired. That means that as you age, you have a pretty good chance of losing some or all of your hearing. The good news is that there are many strategies to help you regain some hearing and listen in on your world.

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A new prospective study finds that early parenting difficulties are associated with the development of asthma in genetically at-risk children between the ages of six and eight.

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An analysis of tobacco-industry documents finds that the industry went to great lengths to battle the environmental tobacco smoke issue by camouflaging its involvement in and creating an impression of unbiased scientific research on the subject.

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Mayo Clinic researchers have found that women who underwent hysterectomy had a threefold increased risk of developing Parkinson's disease and that women who received estrogen after menopause had a 50 percent reduced risk of developing Parkinson's disease.

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The Michigan Education Special Services Association this month is launching a customized MayoClinic.com Web site to help empower its 259,000 members to make better health decisions.

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Smokers who stop smoking by taking the antidepressant bupropion (Zyban(r)) used to treat nicotine addiction are less likely to relapse if they use the medication for one year, according to a Mayo Clinic study.

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If you don't have a herpes virus somewhere in your body, consider yourself lucky. You're one of few Americans to escape this pesky bug.

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Did you know that if you're over the age of 50, you have a 50 percent chance of having an osteoporosis-related bone fracture? That's surprising news for many women.

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Resistance training -- strength building exercises like weightlifting -- has been the darling of the exercise set in recent years. Resistance training builds muscle and prevents bone loss, injury and weight gain. But some people avoid resistance training because an injury or health condition makes weightlifting impossible. For these people, there are several effective alternatives.

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Patients with obstructive sleep apnea syndrome experienced a greater number of serious medical complications following elective knee or hip replacement surgery than patients without the syndrome, Mayo Clinic researchers report.

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Mayo Clinic today announced that it will enhance Colgate-Palmolive Company's U.S. employee benefits package with services from Mayo Clinic Health management Resources.

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A new Mayo Clinic study of patients who have mild or moderately severe Graves' ophthalmopathy, also known as Graves' eye disease or thyroid eye disease, demonstrated no benefit from orbital radiotherapy (radiation therapy to the area containing the eyeball), which has been widely used to treat the disease.

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Standard echocardiograms which image the heart using ultrasound waves -- much like the ultrasound images used during pregnancy to monitor fetal development -- can be used as a screening tool to spot aortic valve abnormalities and to identify people at high risk for stroke and heart valve disease, according to a Mayo Clinic study published in September's Journal of the American College of Cardiology.

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If you are over age 65 and haven't had a vaccination for pneumonia, you are due.

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Drinking tea every day could offer health benefits. Though researchers don't fully understand the connection between tea and health, studies have found that tea drinkers tend to have lower rates of cardiovascular disease and cancer.

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About 5 percent of people with cancer are born with genetic mutations that lead to cancer. Being born with a gene mutation doesn't mean that you'll get cancer, but it could mean that you have a "head start" on the path that can lead to cancer.

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There is an ongoing need for improved quality educational material related to genetic topics on the Internet for both the public and physicians.

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Daily alcohol consumption by women whose mothers, sisters or daughters have breast cancer further increases their risk for getting the cancer, according to a Mayo Clinic study.

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A ten-year Mayo Clinic study of patients arriving at the emergency room has found that overweight or obese patients had their first heart attacks at a younger age than their normal-weight counterparts.

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If you think spit tobacco won't hurt you, chew on this. According to Mayo Clinic experts interviewed for a new feature on MayoClinic.com, one pinch held between your cheek puts the same amount of nicotine in your body as smoking three cigarettes. Your body also absorbs several toxic chemicals including arsenic and formaldehyde.

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Is your mind sharp but more and more, you are forgetful? It could indicate mild cognitive impairment, a specific type of memory loss where the ability to remember recently acquired information declines.

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Women who have unexpected vaginal bleeding or spotting should check with their doctor to determine the cause.

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A few common sense, cutting-board rules can reduce the risk of contaminating the foods you prepare and eat.

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According to the August issue of Mayo Clinic Women's HealthSource, many traditional beliefs, or old wives' tales, contain a kernel of truth, but others are simply folklore. Here's the truth about some of these age-old pieces of advice.

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Cooking with oil doesn't have to be a fattening experience. In fact, a little fat can be good for you -- if you choose the right kind.

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Each cubic millimeter of your blood is packed with about 5 million red blood cells. Under normal circumstances, they silently go about their job of delivering oxygen throughout the body. But when their numbers are reduced, anemia develops.

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The early findings of a Mayo Clinic study indicate the drug thalidomide can stop or slow the progression of multiple myeloma in patients newly diagnosed with this cancer of the blood.