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Staying Active in Old Age Keeps People MobilePeople over 70 who aren"t active are more likely to develop problems walking or climbing stairs within a few years, according to a new study.These findings suggest that it"s very important to stay 1 in old age, study author Dr. Marjolein Visser told Reuters Health."Physical activity in old age is as important 2 taking your medications(药物)," Visser noted. "You do not need to join an expensive, fancy sports club with high-tech (高科技的 ) equipment. Your body will already 3 from regular walking."Visser explained that 4 active helps prevent people from becoming breathless during simple activities, increase muscle mass and strength, and maintain the balance People need to walk up stairs, for instance.To investigate how important exercise is to older adults, Visser"s team interviewed 3,075 men and 5 between the ages of 70 and 79, all of whom said they had no problems walking one-quarter of a mile or climbing 6 . The investigators followed the subjects for 4-1/2 years, noting who developed problems 7 and climbing stairs.During the study,34 percent of men and 47 8 of women said they began to struggle with walking and climbing stairs. People 9 were inactive were twice as likely to report these problems as people who said they got regular exercise.People who didn"t exercise but had active lifestyles appeared to be at a somewhat higher risk of developing 10 walking and climbing stairs, relative to people who exercised 11 . Still, leading an active lifestyle appeared to protect people 12 problems better than being generally inactive, the researchers report in the Journal of the American Geriatrics (老年医学的) Society.Among people who were generally inactive, 13 who walked even a little bit—such as brisk (轻快的) walking for a little over an hour per week—were at a lower 14 of mobility (可动性) problems."If you do not like to exercise or you cannot exercise 15 of serious health problems or functional limitations, do try to be as active as possible," Visser advised.
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Staying Active in Old Age Keeps People MobilePeople over 70 who aren"t active are more likely to develop problems walking or climbing stairs within a few years, according to a new study.These findings suggest that it"s very important to stay 1 in old age, study author Dr. Marjolein Visser told Reuters Health."Physical activity in old age is as important 2 taking your medications(药物)," Visser noted. "You do not need to join an expensive, fancy sports club with high-tech (高科技的 ) equipment. Your body will already 3 from regular walking."Visser explained that 4 active helps prevent people from becoming breathless during simple activities, increase muscle mass and strength, and maintain the balance People need to walk up stairs, for instance.To investigate how important exercise is to older adults, Visser"s team interviewed 3,075 men and 5 between the ages of 70 and 79, all of whom said they had no problems walking one-quarter of a mile or climbing 6 . The investigators followed the subjects for 4-1/2 years, noting who developed problems 7 and climbing stairs.During the study,34 percent of men and 47 8 of women said they began to struggle with walking and climbing stairs. People 9 were inactive were twice as likely to report these problems as people who said they got regular exercise.People who didn"t exercise but had active lifestyles appeared to be at a somewhat higher risk of developing 10 walking and climbing stairs, relative to people who exercised 11 . Still, leading an active lifestyle appeared to protect people 12 problems better than being generally inactive, the researchers report in the Journal of the American Geriatrics (老年医学的) Society.Among people who were generally inactive, 13 who walked even a little bit—such as brisk (轻快的) walking for a little over an hour per week—were at a lower 14 of mobility (可动性) problems."If you do not like to exercise or you cannot exercise 15 of serious health problems or functional limitations, do try to be as active as possible," Visser advised.
Staying Active in Old Age Keeps People MobilePeople over 70 who aren"t active are more likely to develop problems walking or climbing stairs within a few years, according to a new study.These findings suggest that it"s very important to stay 1 in old age, study author Dr. Marjolein Visser told Reuters Health."Physical activity in old age is as important 2 taking your medications(药物)," Visser noted. "You do not need to join an expensive, fancy sports club with high-tech (高科技的 ) equipment. Your body will already 3 from regular walking."Visser explained that 4 active helps prevent people from becoming breathless during simple activities, increase muscle mass and strength, and maintain the balance People need to walk up stairs, for instance.To investigate how important exercise is to older adults, Visser"s team interviewed 3,075 men and 5 between the ages of 70 and 79, all of whom said they had no problems walking one-quarter of a mile or climbing 6 . The investigators followed the subjects for 4-1/2 years, noting who developed problems 7 and climbing stairs.During the study,34 percent of men and 47 8 of women said they began to struggle with walking and climbing stairs. People 9 were inactive were twice as likely to report these problems as people who said they got regular exercise.People who didn"t exercise but had active lifestyles appeared to be at a somewhat higher risk of developing 10 walking and climbing stairs, relative to people who exercised 11 . Still, leading an active lifestyle appeared to protect people 12 problems better than being generally inactive, the researchers report in the Journal of the American Geriatrics (老年医学的) Society.Among people who were generally inactive, 13 who walked even a little bit—such as brisk (轻快的) walking for a little over an hour per week—were at a lower 14 of mobility (可动性) problems."If you do not like to exercise or you cannot exercise 15 of serious health problems or functional limitations, do try to be as active as possible," Visser advised.
Modern scientists divide the process of dying into two phases—clinical or temporary death and biological death. Clinical death occurs when the vital organs, such as the heart or lungs, have ceased to function, but have not suffered permanent damage. The organism can still be revived (复活). Biological death occurs when changes in the organism lead to the "breaking up" of vital cells and tissues. Death is then unchangeable and final.Scientists have been seeking a way to prolong the period of clinical death so that the organism can remain alive before biological death occurs. The best method developed so far involves cooling of the organism, combined with narcotic(麻醉的) sleep. By slowing down the body"s metabolism (新陈代谢),cooling delays the processes leading to biological death.To illustrate how this works, scientists performed an experiment on a six-year-old female monkey called Keta. The scientist put Keta to sleep with a narcotic. Then they surrounded her body with ice bags and began checking her body temperature. When it had dropped to 28 degrees the scientists began draining blood from an artery (动脉). The monkey"s blood pressure decreased and an hour later both the heart and respiration stopped: clinical death set in. For twenty minutes Keta remained in this state. Her temperature dropped to 22 degrees. At this point the scientists pumped blood into an artery in the direction of the heart and started artificial respiration. After two minutes Keta"s heart became active once more. After fifteen minutes, spontaneous (自然产生的) respiration began, and after four hours Keta opened her eyes and lifted her head. After six hours, when the scientists tried to give her a penicillin injection, Keta seized the syringe (注射器) and ran with it around the room. Her behavior differed little from that of a healthy animal. What happened to the monkey when she was restored to the original state again
Cooking Off Fumes Cause TumorThe leading cause of lung cancer among women in the city was cooking oil fumes while men are more likely to develop the disease from smoking, said medical experts after a five-year research study.Doctors announced the results yesterday with analysis on some new tendencies in lung cancer. They said patients are younger, especially women.According to the Shanghai Tumor Research Institute, more local residents die of lung cancer in the city than anything else. Following breast cancer, it has the second-highest incidence rate."An unhealthy lifestyle is a very important reason for lung cancer," said Dr. He Yumin from Shanghai Minshen Traditional Chinese Medicine Tumor Diagnosis and Treatment Center.He followed 2,276 lung cancer patients for five years. Among them, 1,483 were male.Smoking causes 70 percent of cases among men while only 18 percent of female patients developed cancer from smoking or inhaling second-hand smoke, according to the report.However, more than 60 percent of women with the disease had long-term, close contact with strong oil fumes from cooking and complained about irritated eyes and throat.About 32 percent of women fried foods in boiling oil in unventilated kitchens and about 25 percent of women"s bedrooms were adjacent to the kitchen.However, local women were surprised to learn cooking oil fumes could lead to cancer. Some claimed they may change food preparation methods."Unless my family and I don"t eat at home every day, I must stay in the kitchen to cook," said Xu Li, a 45-year-old local woman. "I know the fumes are bad for the skin, but it is the first time I heard that it can result in lung cancer. I have already started frying less."Doctors said women"s lung cancer had few links to personal health and physical condition, but was closely related to family cancer history, unhealthy dietary habits and weak immune systems.Other experts agreed with He."Smoking is by far the biggest cause of lung cancer for men," said Dr. Tan Binyong, honorary president of the Respiratory Disease Institute at Fudan University"s Medical College. "It"s true that second-hand smoke and cooking fumes are the main causes among women."He"s research also warned people not to stand near of stalls selling fried foods due to the poor quality of oils used.The chance of catching lung cancer is three times higher if exposed to the fume for a long time, experts said. People should stay away from the stands which sell fried foods.
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