News From The World of Medicine
SHORT ON SLEEP? DON'T FORGET TO DRINK WATER
In a Pennsylvania State University study involving more than 20,000 participants, people who said they got only six hours of sleep regularly ran a greater risk of dehydration (脱水) than who got eight hours. The reason might lie with a hormone (荷尔蒙) called vasopressin, helps control the body's fluid levels. It's let out in larger quantities later in the sleep cycle, people getting less shut-eye might not have the best amount of it. If you know you're short on slumber, (make) a point of drinking water.
TEN-MINUTE CANCER TEST
Australian researchers have developed a test can discover cancer cells in ten minutes with 90 percent accuracy. Healthy DNA and cancer DNA, it turns out, stick to metal surfaces differently. When cancer DNA (add) to water mixed with gold nanoparticles (纳米颗粒), the water remains its rosy color, when healthy DNA is added, the water turns blue. the test is cheap and simple, it could be used at your primary care physician's office, with follow-up if necessary.
EXERCISE PREVENTS FALLS
Each year, at least a third of people the age of 65 fall downwards. Research found that there's one factor related to notably reduced risk: exercise. People who took part in Tai Chi fell 19 percent (often), while those who did balance and functional exercises, such as step-ups, chair rises, or standing on one leg, fell 24 percent less often. Most useful of all was (combine) different types of exercise, including lifting weights and balance exercises.
