济南阴茎上面有小白点(济南前列腺肥大该怎么治) (今日更新中)

LOS ANGELES, March 2 (Xinhua) -- Those who take a nap are more likely to have lower levels of blood pressure despite stress, said a new study in the latest issue of International Journal of Behavioral Medicine available on Wednesday.In the study, researchers at Sarah Conklin of Allegheny College in Meadville, Pennsylvania examined 85 healthy university students, who were divided into two groups, with one group taking an hour- long nap during the day, and the other group having no time to sleep. Both groups were given a mental stress test.The study found that participants in both groups experienced increase in blood pressure and pulse rates when they took the stress test, but the average blood pressure of those who slept for at least 45 minutes was significantly lower after the stress test than it was for those who did not sleep.The researchers drew the conclusion that a daytime nap of at least 45 minutes may help stressed-out people lower their blood pressure and protect their heart."Our findings suggest that daytime sleep may offer cardiovascular benefit by accelerating cardiovascular recovery following mental stressors," the researchers said in the study."Further research is needed to explore the mechanism by which daytime sleep is linked with cardiovascular health and to evaluate daytime sleep as a recuperative and protective practice, especially for individuals with known cardiovascular disease risk and those with suboptimal sleep quality," they added.Sleep deficiency is common in the United States, posing a long- term health threat. On average, Americans get nearly two hours less sleep a night than they did 50 years ago, according to background information provided by the journal.

BEIJING, May 11 (Xinhuanet) -- New retirees suddenly confronted with plenty of time on their hands might be happy to learn that reading keeps one mentally alert and abreast of current aff airs, says Ursula Lenz of Germany's working group of senior citizens' organizations, BAGSO.Growing old can present difficulties such as failing eyesight or problems concentrating, but experts encourage the elderly not to give up on reading and to adapt to their situation.From the perspective of health professionals, there are many advantages to reading books or newspapers for senior citizens.Reading helps the elderly keep a sharp mind. The ability to transform words into mental images is good for cognitive performance. Reading also improves vocabulary, language use and the ability to concentrate, according to Simone Helck from the Kuratorium Deutsche Altershilfe, an organization in Germany that helps promote and develop strategies for taking care of the elderly.So, what exactly happens in the brain when we read?"The brain builds new synapses, junctions between the neurons, when it's stimulated such as during reading," says Manfred Gogol, a physician and president of Germany's Society for Gerontology and Geriatrics.Gogol recommends reading books that deal with subjects that are of special interest to the reader. If a long novel seems like too much work, then try a novella or collection of short stories.But a prerequisite for reading is that any sight defect is corrected by an optician.In response to the needs of elderly people, publishers print books with large typefaces and bigger line spacing. Lenz says it is worthwhile asking for large print books in libraries and bookshops.But no matter what the reading matter is, another important aspect is being able to exchange opinions about a book with other people. Whether it's a society magazine, highbrow literature or a daily newspaper, there is always something to talk about.

LOS ANGELES, March 27 (Xinhua) -- Walnuts have a combination of more healthful antioxidants and higher quality antioxidants than any other nut, U.S. researchers have found.Study findings were presented on Sunday at the 241st National Meeting & Exposition of the American Chemical Society (ACS) in Anaheim, Southern California.Nuts contain plenty of high-quality protein that can substitute for meat, vitamins and minerals, dietary fiber, and are dairy- and gluten-free, ACS researchers said in the study.Moreover, nuts contain healthful polyunsaturated and monosaturated fats rather than artery-clogging saturated fat, according to the study.The researchers based their conclusion on analysis of antioxidants in nine different types of nuts: walnuts, almonds, peanuts, pistachios, hazelnuts, Brazil nuts, cashews, macadamias and pecans.They found that walnuts have the highest levels of antioxidants, with plenty of high-quality protein that can substitute for meat, vitamins and minerals, dietary fiber, and are dairy- and gluten-free.The latest study adds more evidence that walnuts are top nuts for heart-healthy antioxidants, the researchers said.Previous studies showed that regular consumption of small amounts of nuts or peanut butter can decrease the risk of heart disease, certain kinds of cancer, gallstones, Type 2 diabetes, and other health problems.But the latest study is the first to compare both the amount and quality of antioxidants found in different nuts."Walnuts rank above peanuts, almonds, pecans, pistachios and other nuts," said Joe Vinson, Ph.D., who led the latest study."A handful of walnuts contains almost twice as much antioxidants as an equivalent amount of any other commonly consumed nut. But unfortunately, people don't eat a lot of them. This study suggests that consumers should eat more walnuts as part of a healthy diet."

BEIJING, March 29 (Xinhuanet) -- Tickets for Apple's annual World Wide Developer Conference (WWDC) 2011 have already been sold out ten hours after the event was announced Monday, according to media reports.It is the first time the event sold out the same day it was announced. Last year, the conference sold out in eight days.WWDC 2011, with the tickets priced at 1599 U.S. dollars, will run from June 6 till June 10 at the Moscone West conference center in San Francisco.This year's speedy turnaround is probably because of a rumored double-focus on iOS and Mac OS."At this year's conference we are going to unveil the future of iOS and Mac OS," Philip Schiller, Apple's senior vice president of Worldwide Product Marketing, said in a press release."If you are an iOS or Mac OS X software developer, this is the event that you do not want to miss."The event will feature more than 100 technical sessions presented by Apple engineers on Application Frameworks; Graphics, Media and Games; Developer Tools; Internet and Web, and Core OS.

LOS ANGELES, March 23 (Xinhua) -- People who are more physically active are less likely to have high blood pressure associated with a high-sodium diet, a new study suggests.The study was conducted by researchers at the Tulane University School of Public Health and Tropical Medicine in New Orleans, HealthDay News reported on Wednesday.Study findings were presented at the on-going American Heart Association's meeting on nutrition, physical activity and cardiovascular disease, held in Atlanta, said the report.To explore a potential association between exercise and the hypertensive role of dietary salt, the researchers focused on roughly 1,900 men and women (average age 38) living in a rural region in northern China. None took blood pressure medication during the study, according to the report.For one week all of the participants consumed 3,000 mg of sodium a day in their diet; for another week, they were placed on a high-sodium diet -- 18,000 mg per day.Nine blood pressure readings were taken each week, and questionnaires were completed to assess routine levels of physical activity, ranging from "very active" to "quite sedentary."When switching from the lower-sodium to a high-sodium diet, those who experienced a 5 percent or greater boost in their systolic blood pressure (the heart contraction measure represented by the top figure of a blood pressure reading) were deemed "high salt-sensitive."Those reporting the most physical activity had a 38 percent lower risk of being highly salt-sensitive than the least active group. This group was the least likely to see a 5 percent or greater rise in their blood pressure in response to a high-salt diet.Compared with the most sedentary group, those in the next-to- highest activity group had a 17 percent lower risk of salt- sensitivity, and those in the next-to-lowest activity group had a 10 percent lower risk.The team concluded that engaging in physical activity has a " significant," independent and progressively healthful impact on the degree to which salt sensitivity relates to blood pressure."For those with low physical activity, their blood pressure will increase more if they increase their sodium intake," study co- author Dr. Jiang He, chair of the department of epidemiology at the school, said in remarks published by HeathDay News."It's a little bit of a surprise," He added. "But this is the first study to look at this particular association between physical activity and salt sensitivity and blood pressure. But after thinking it over it makes sense, because we already know that physical activity will reduce blood pressure."High blood pressure, or hypertension, is a leading cause of stroke. Because of salt's association with high blood pressure, the American Heart Association recommends consuming less than 1, 500 mg of sodium per day.

来源：资阳报