濮阳东方男科医院割包皮好不好(濮阳东方医院男科治疗阳痿非常好) (今日更新中)

CANBERRA, Sept. 9 (Xinhua) -- Managing other people at work triggers structural changes in the brain, protecting its memory and learning center well into old age, Australia's study revealed on Friday.Australia's University of New South Wales (UNSW) researchers have, for the first time, identified a clear link between managerial experience throughout a person's working life, and the integrity and larger size of an individual's hippocampus (the area of the brain responsible for learning and memory) at the age of 80. "We found a clear relationship between the number of employees a person may have supervised or been responsible for and the size of the hippocampus," Dr Michael Valenzuela, Leader of Regenerative Neuroscience in UNSW's School of Psychiatry, said in a statement released on Friday."This could be linked to the unique mental demands of managing people, which requires continuous problem solving, short term memory and a lot of emotional intelligence, such as the ability to put yourself in another person's shoes. Over time this could translate into the structural brain changes we observed."The findings confirmed that staying mentally active promotes brain health, potentially warding off neurodegenerative diseases such as Alzheimer's.Using MRI imagery in a cohort of 75-92 year-olds, researchers found larger hippocampal volumes in those with managerial experience compared to those without. The effect was also seen in women who had taken on managerial roles in nursing or teaching, for example.The study was presented at this week's Brain Sciences UNSW symposium Brain Plasticity The Adaptable Brain, held in Australia.

WASHINGTON, June 2 (Xinhua) -- When humans see red, their reactions become both faster and more forceful, according to a new study published this week in the U.S. bimonthly journal Emotion.The findings may have applications for sporting and other activities in which a brief burst of strength and speed is needed, such as weightlifting. But the authors caution that the color energy boost is likely short-lived.The study measured the reactions of students in two experiments. In the first, 30 fourth-through-10th graders pinched and held open a metal clasp. Right before doing so, they read aloud their participant number written in either red or gray crayon. In the second experiment, 46 undergraduates squeezed a handgrip with their dominant hand as hard as possible when they read the word "squeeze" on a computer monitor. The word appeared on a red, blue, or gray background.In both scenarios, red significantly increased the force exerted, with participants in the red condition squeezing with greater maximum force than those in the gray or blue conditions. In the handgrip experiment, not only the amount of force, but also the immediacy of the reaction increased when red was present.The colors in the study were precisely equated in hue, brightness, and chroma (intensity) to insure that reactions were not attributable to these other qualities of color."Red enhances our physical reactions because it is seen as a danger cue," explains coauthor Andrew Elliot, professor of psychology at the University of Rochester and a lead researcher in the field of color psychology. "Humans flush when they are angry or preparing for attack," he explains. "People are acutely aware of such reddening in others and it's implications."But threat is a double-edged sword, argue Elliot and coauthor Henk Aarts, professor of psychology at Utrecht University, in the Netherlands. Along with mobilizing extra energy, "threat also evokes worry, task distraction, and self-preoccupation, all of which have been shown to tax mental resources," they write in the paper.In earlier color research, exposure to red has proven counterproductive for skilled motor and mental tasks: athletes competing against an opponent wearing red are more likely to lose and students exposed to red before a test perform worse.

XICHANG, Sichuan, July 12 (Xinhua) -- China blasted off a new data relay satellite "Tianlian I-02" on Monday at the Xichang Satellite Launch Center in southwest Sichuan Province .The satellite was launched on a Long March-3C carrier rocket at 11:41 p.m. (Beijing Time), said sources with the center.Developed by the China Academy of Space Technology under the China Aerospace Science and Technology Corporation, the satellite is the country's second data relay satellite.China launched its first data relay satellite "Tianlian I-01" on April 25, 2008.The two satellites will form a network to offer data relay and measurement and control service for China's spacecrafts and planned space stations, according to the center.They will also be used to help perform the nation's first space docking, scheduled for the second half of 2011.China plans to launch Tiangong-1 and Shenzhou-8 spacecraft in the latter half of this year, and they will perform the nation's first space docking.Monday's launch is the 140th mission of China's Long March series of rockets.

WELLINGTON, Aug. 30 (Xinhua) -- Middle-aged women who wolf down their meals are much more likely to be overweight or obese than women who eat slower, New Zealand research has found.In what they claimed to be the first such nationwide study anywhere, Otago University researchers analyzed the relationship between self-reported speed of eating and body mass index (BMI) in more than 1,500 New Zealand women aged 40 to 50, an age group known to be at high risk of weight gain.The study by the university's department of human nutrition could lead to new and more successful methods of treating obesity, say the researchers.Study principal investigator Dr Caroline Horwath said that after adjusting for factors such as age, ethnicity, smoking, physical activity and menopause status, the researchers found that the faster women reported eating, the higher their BMI.Results from the two-year follow-up were expected to be published next year, and if analysis confirmed a causal relationship, the researchers would test interventions that focused on encouraging women to eat more slowly.

SUVA, July 25 (Xinhua) -- There are 400,000 people suffering from anaemia in Fiji with a total of population at about 800,000 people, according to the Health Ministry on Monday.Health Minister Doctor Neil Sharma told media that currently 60 per cent of children less than five years old are iron deficient, 40 per cent of women lack iron while 20 per cent of men suffer from iron deficiency in the island nation.Sharma, therefore, called on every family to grow local, eat local and move back to our traditional food habits, telling anaemic, "Do not forget to take your iron tablets."National Advisor Non-Communicable Diseases, Dr Isimeli Tukana also told media on Monday that strategies would include implementing the Food and Health Guidelines for the country in all clinics.All females are supposed to take their iron medication while all pre and primary school children will be given iron supplementation, he added.According to Fiji's Agriculture and Nutrition Department, the island nation, which is in transition towards increasing industrialization, is facing nutritional problems associated with both under-nutrition and over-nutrition.Lack of access to food due to economical shortages is one of the major causes of malnutrition in the country as one quarter of the population is living below the poverty line and most are living in illegal squatter settlements in search of employment and educational opportunities in urban areas.The problem of over-nutrition, on the other hand, may be associated with the change in the consumption patterns towards a diet high in energy but low in fibre, vitamins and minerals and a sedentary lifestyle.

来源：资阳报