CURRENT NEW SCIENCE OF LIFE AND DEATH IN vED CONTEXT PVAF is publishing this article on this web site to enlighten YOU about now a days the current knowledge of sciences is showing humanity how little the humans know about the human body that is the design of the Creator in whom the current humanity is losing confidence as Creator and Sustainer. But the little knowledge the humanity has discovered in the last 500 years seems to be so awesome to humans that the humans are just about treating doctors as Gods.....and medical scientists are on the brink of believing that they can be Gods who will control LIFE AND DEATH soon...   To get true perspective of the extent of current knowledge about LIFE AND CREATION we as a humanity have, one should try to study vED = SCIENCES OF CREATION AND LIFE...The amount of knowledge in vED appears to tend to  infinity....but the current humanity can start studying puraan and itihaas texts of vED to start at kindergarten level in the multi-life quest for vED knowledge...... Saying the above, one should start vED study with good unabridged translations of original sNskrut text of bR`Hmaa puraaAN and pD`m puraaAN and along with mHaabhaart text.....and continue to study the rest of the total of 18 mHaa-puraaAN in the sequence recommended by vyaas-muni who is the author of 18 puraaAN for the kli-yug vEDik time era in which we currently exist.....before going to upniSHD, 4-vED and the whole of 18 viDyaa (sciences) enumerated in vED...... In order to understand the title of this news item YOU can email your questions on the title as well as the above write-up to PVAF VED DEPARTMENT by clicking on the preceding yellow hilite.... and or use the POST A COMMENT button in the header of this new item......     Please click on the next line to read what is published here from MSNBC web site or you can go to MSNBC web site by clicking on the yellow hilite for each of the two articles on the next page detailing MECHANISM OF HEART ATTACKS and TAI CHI THE ANCIENT CHINESE SYSTEM TO MAINTAIN A GOOD HEART.......

THE NEW SCIENCE OF DEATH: DOCTORS RETHINK THE NATURE OF HEART ATTACKS AND HOW BODY DIES MSNBC.MSN.COM: May 1, 2007: By Jerry Adler: From Newsweek May 7, 2007 issue - Consider someone who has just died of a heart attack. His organs are intact, he hasn't lost blood. All that's happened is his heart has stopped beating—the definition of "clinical death"—and his brain has shut down to conserve oxygen. But what has actually died? As recently as 1993, when Dr. Sherwin Nuland wrote the best seller "How We Die," the conventional answer was that it was his cells that had died. The patient couldn't be revived because the tissues of his brain and heart had suffered irreversible damage from lack of oxygen. This process was understood to begin after just four or five minutes. If the patient doesn't receive cardiopulmonary resuscitation within that time, and if his heart can't be restarted soon thereafter, he is unlikely to recover. That dogma went unquestioned until researchers actually looked at oxygen-starved heart cells under a microscope. What they saw amazed them, according to Dr. Lance Becker, an authority on emergency medicine at the University of Pennsylvania. "After one hour," he says, "we couldn't see evidence the cells had died. We thought we'd done something wrong." In fact, cells cut off from their blood supply died only hours later. But if the cells are still alive, why can't doctors revive someone who has been dead for an hour? Because once the cells have been without oxygen for more than five minutes, they die when their oxygen supply is resumed. It was that "astounding" discovery, Becker says, that led him to his post as the director of Penn's Center for Resuscitation Science, a newly created research institute operating on one of medicine's newest frontiers: treating the dead. Biologists are still grappling with the implications of this new view of cell death—not passive extinguishment, like a candle flickering out when you cover it with a glass, but an active biochemical event triggered by "reperfusion," the resumption of oxygen supply.     The research takes them deep into the machinery of the cell, to the tiny membrane-enclosed structures known as mitochondria where cellular fuel is oxidized to provide energy. Mitochondria control the process known as apoptosis, the programmed death of abnormal cells that is the body's primary defense against cancer. "It looks to us," says Becker, "as if the cellular surveillance mechanism cannot tell the difference between a cancer cell and a cell being reperfused with oxygen. Something throws the switch that makes the cell die." With this realization came another: that standard emergency-room procedure has it exactly backward. When someone collapses on the street of cardiac arrest, if he's lucky he will receive immediate CPR, maintaining circulation until he can be revived in the hospital. But the rest will have gone 10 or 15 minutes or more without a heartbeat by the time they reach the emergency department. And then what happens? "We give them oxygen," Becker says. "We jolt the heart with the paddles, we pump in epinephrine to force it to beat, so it's taking up more oxygen." Blood-starved heart muscle is suddenly flooded with oxygen, precisely the situation that leads to cell death. Instead, Becker says, we should aim to reduce oxygen uptake, slow metabolism and adjust the blood chemistry for gradual and safe reperfusion. Researchers are still working out how best to do this. A study at four hospitals, published last year by the University of California, showed a remarkable rate of success in treating sudden cardiac arrest with an approach that involved, among other things, a "cardioplegic" blood infusion to keep the heart in a state of suspended animation. Patients were put on a heart-lung bypass machine to maintain circulation to the brain until the heart could be safely restarted. The study involved just 34 patients, but 80 percent of them were discharged from the hospital alive. In one study of traditional methods, the figure was about 15 percent. Becker also endorses hypothermia—lowering body temperature from 37 to 33 degrees Celsius—which appears to slow the chemical reactions touched off by reperfusion. He has developed an injectable slurry of salt and ice to cool the blood quickly that he hopes to make part of the standard emergency-response kit. "In an emergency department, you work like mad for half an hour on someone whose heart stopped, and finally someone says, 'I don't think we're going to get this guy back,' and then you just stop," Becker says. The body on the cart is dead, but its trillions of cells are all still alive. Becker wants to resolve that paradox in favor of life. © 2007 Newsweek, Inc. | Subscribe to Newsweek Tai chi: An ancient art that helps the heart By Harvard Health Publications Find More Straight Up: Don't Be a Slouch Sunscreens: New wave in sun protection: Blocking ultraviolet A Selenium and prostate cancer More on Heart & Cardio on MSN Health & Fitness The easy exercises and deep breathing of this Chinese martial art could offer excellent self-defense for the damaged or failing heart. Tai chi, a gentle exercise that combines simple, flowing movements with deep breathing, has piqued the interest of medical researchers. Several studies suggest that this ancient Chinese practice offers a safe, helpful form of exercise for the elderly and people with chronic health problems. We’re learning that it could be just the thing for people with heart failure. Exercise poses a special challenge for many people with heart failure, whose damaged hearts can’t deliver enough oxygen-rich blood to their muscles and organs. The resulting weakness, fatigue, and shortness of breath make exertion difficult. Avoiding exercise further weakens the body and makes daily activities even more difficult. Traditional forms of exercise, such as walking on a treadmill or riding a stationary bike, often help. But they can sometimes worsen heart failure and may cause minor aches and pains. An easy, low-impact exercise routine such as tai chi may provide just the right balance. How tai chi might help To test this idea, Harvard Medical School researchers teamed up with experts from the New England School of Acupuncture in Watertown, Mass. They recruited 30 men and women with stable heart failure. All received standard care. Half also took an hour-long class that met twice a week to learn and practice tai chi. After three months, the people who were doing tai chi were able to walk further without getting breathless and reported better quality of life than those who didn’t take the class. They also had lower levels of B-type natriuretic peptide (BNP). This blood-borne substance rises as heart failure worsens, so lower levels are a good sign. What might explain these benefits? Practitioners of traditional Chinese medicine would say that "moving meditation," as tai chi is sometimes called, generates the body’s natural energy, known as chi or qi. Practicing tai chi’s graceful movements, with names drawn from nature such as "Wave Hands Like Clouds" or "Grasping the Sparrow’s Tail", is supposed to balance the two opposing life forces — yin and yang — that are needed to restore and maintain health. There are more prosaic explanations. The style of tai chi the volunteers practiced requires a wide stance with a slight bend in the knees and slow, steady motions. This could have strengthened leg muscles, which would account for the improvements in walking and daily activities. The deep breathing component of tai chi may also help. In previous experiments, slow, yoga-like breathing for an hour a day raised blood oxygen levels and eased breathlessness, which allowed people with heart failure to be more active without symptoms. The drop in BNP levels among those who practiced tai chi suggests that their hearts were filling with blood more effectively, although it isn’t clear why this happened.uses.       Grasping the Sparrow’s Tail Tai chi combines intense mental focus with deliberate, graceful movements that can improve strength, agility, and balance. Each of the many tai chi "forms" involves a series of movements. Grasping the Sparrow’s tail begins with motionless relaxed breathing, followed by smooth turns and slow, precise movements of the arms, hands, and legs. The forward and backward motions give the impression of playing a tugging game with a bird. It is also possible that the improvements had little to do with tai chi itself but instead came from the extra social contact that those doing the exercises had with both health care personnel and fellow heart failure sufferers. This may have boosted their spirits and made them feel better, according to an editorial that accompanied the report, which appeared in the Oct. 15, 2004, American Journal of Medicine. A similar Summer 2005 study involving 150 people with heart failure may provide a more detailed picture. In the meantime, tai chi appears to be a good way for people with heart failure to exercise without overdoing it. Grasp your own sparrow Many health clubs, schools, senior centers, and recreational facilities offer tai chi classes. You don’t need any special equipment, just comfortable shoes and clothes that don’t bind the waist or chest. Once you’ve learned a form or two, you can do tai chi at home or anywhere else. If you have heart failure, check with your doctor before starting, just to be on the safe side. content by: Last Updated: 02/05 Copyright (c) 2006 by the Presidents and Fellows of Harvard College. Used with permission of StayWell. All rights reserved. Harvard Medical School does not approve or endorse any products on the page. Harvard is the sole creator of its editorial content, and that advertisers are not allowed to influence the language or images Harvard

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