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...vestibular dysfunction. It also showed that patients who have the condition but are asymptomatic - that is, with no self-reports of dizziness - are still three times more likely to fall than healthy adults. The findings suggest that screening for such conditions during regular preventive care of patients over age 50 may lead to fewer falls and, ultimately, save lives. "Patients who are aware they're at a greater risk can take steps to minimize the chance of falling, such as physical therapy to improve balance or simply installing railings in places they tend to fall," Agrawal says. (See the most...
Most likely, things start going awry simply due to advancing age, Agrawal says. Smoking, hypertension and diabetes are also associated with higher rates of inner-ear balance problems. Fortunately, the condition is easily diagnosable in the doctor's office: patients are asked to stand on a firm padded surface and close their eyes. Without the ability to use touch and vision to stay balanced, patients who suffer from an inner-ear problem promptly fall down. The addition of that simple test to annual physicals, Agrawal says, "would likely save millions of dollars and lives...
Once known as juvenile diabetes, Type 1 diabetes typically begins in childhood - Sotomayor was diagnosed at age 8 - eventually causing the body to slow production of insulin, the hormone necessary to break down sugars found in food. (In Type 2, or adult-onset, diabetes the pancreas continues to make insulin, but the body fails to respond properly to the hormone's signals.) While it is not yet clear what causes Type 1 diabetes, some experts believe that a patient's own immune system starts to attack insulin-producing cells in the pancreas, ultimately leading to a drop-off in hormone...
...this sort of all-American cachet. It's kind of like baseball and apple pie. It's also something that anybody can try, sort of like playing Scrabble - it's easy to get the hang of. And these kids are right at an age where they're like adults, but they're not adults, and they don't have a game face, so it's fun to watch them. You can read the storms, watch the sun come out - you can see all that on their faces when they get a word...
...each satellite carries an atomic clock). By calculating the difference between radio signals received from four or more satellites, GPS receivers on the ground can determine their own location, speed and elevation with great accuracy - usually within a few meters or even less. Satellites are regularly replaced as they age and fail; there are currently more than 30 in space, with the extras used as spares and backups. (See "25 Gotta Have Travel Gadgets...