Gourt > Health > Aging > Anti Aging (2)
Life extension refers to an increase in maximum or average lifespan, especially in humans, by slowing down or reversing the processes of aging. Average lifespan is determined by vulnerability to accidents and age-related afflictions such as cancer or cardiovascular disease. Extension of average lifespan can be achieved by good diet, exercise and avoidance of hazards such as smoking and excessive eating of sugar-containing foods. Maximum lifespan is determined by the rate of aging for a species inherent in its genetic code. Currently, the only widely recognized method of extending maximum lifespan is by calorie restriction with adequate nutrient supplementation. Theoretically, extension of maximum lifespan can be achieved by reducing the rate of aging damage, by periodic replacement of damaged tissues, or by molecular repair or (rejuvenation) of deteriorated cells and tissues.
Researchers of life extension are a subclass of biogerontologists known as "biomedical gerontologists". They seek to understand the nature of aging and they develop treatments to reverse aging processes or to at least slow them down, for the improvement of health and the maintenance of youthful vigor at every stage of life. (Biomedical gerontologists are distinguished from biogerontologists in that the latter only take an academic interest in the biological mechanisms of aging, without seeking a "cure".) Those who take advantage of life extension findings and seek to apply them upon themselves are called "life extensionists" or "longevists". The primary life extension strategy currently is to apply available anti-aging methods in the hope of living long enough to benefit from a complete cure to aging once it is developed, which given the rapidly advancing state of biogenetic and general medical technology, could conceivably occur within the lifetimes of people living today.
Many biomedical gerontologists and life extensionists believe that future breakthroughs in tissue rejuvenation with stem cells, organs replacement (with artificial organs or xenotransplantations) and molecular repair will eliminate all aging and disease as well as allow for complete rejuvenation to a youthful condition. Whether such breakthroughs can occur within the next few decades is impossible to predict. Many life extensionists make cryonics arrangements, they arrange to be cryonically preserved, upon legal death so that they can await the time when future medicine can eliminate disease, rejuvenate to a lasting youthful condition and repair damage caused by the cryonics process.
More on [ Life extension ]
Cryonics :: Cryobiology
Nanotechnology :: Technology
Future :: Society
The Social Foundation of Religious Meaning in Life
Krause, N. Thu, 05 Jun 2008 00:00:00 -0000
The purpose of this study was to see whether informal social support from fellow church members sustains an older person's sense of religious meaning in life over time. Two types of church-based social support were evaluated: spiritual support and emotional support. Data from a nationwide longitudinal survey of older adults suggested that both emotional and spiritual support tend to sustain a sense of religious meaning in life, but of the two, spiritual support appeared to exert the greatest effect. The findings further revealed that older African Americans are more likely than older European Americans to derive a sense of meaning in life through religion. This race difference is largely explained by the fact that older African Americans tend to receive more church-based social support than older European Americans.
Planning for End-of-Life Care: Black-White Differences in the Completion of Advance Directives
Gerst, K., Burr, J. A. Thu, 05 Jun 2008 00:00:00 -0000
The authors examined Black-White differences in the likelihood of completing written advance directives for end-of-life health care and engaging in informal verbal communication about advanced wishes. Data from the 1998 Health and Retirement Study (HRS) were combined with data from the 2000 HRS exit interview to analyze Black and White participants' completion rates. Whites were more likely than Blacks to grant durable power of attorney for health care, to complete a written will, and to informally communicate their wishes; group differences remained after controlling for personal characteristics. Also, Blacks were less likely than Whites to engage in more than one form of end-of-life planning. The authors speculate that sociocultural differences in trust in the medical system and knowledge about advance directives may partially account for these findings. The findings may aid policy makers and practitioners in increasing the level of participation in advance directives.
Assessing Experts' Views of the Future of Long-Term Care
Miller, E. A., Booth, M., Mor, V. Thu, 05 Jun 2008 00:00:00 -0000
Consensus is growing that long-term care delivery, regulation, and financing are no longer viable, a concern that will grow more salient as the population ages. To better understand these prevailing challenges, the authors interviewed experts regarding the current state of long-term care in the United States, the attributes of an ideal long-term care system, and potential areas for reform. The findings highlight the problem of maintaining an adequate workforce despite changing demographics. They also identify commonly agreed upon attributes of an ideal system—person centered, professionally rewarding, integrated, affordable, accountable, community based, and consumer directed—in addition to less commonly identified attributes—supportive, comprehensive, dignified, culturally appropriate, innovative, responsible, and safe and secure. Areas for reform include workforce recruitment and retention, financing and insurance, quality improvement and regulation, health information technology, and organizational change and innovation. The challenges facing long-term care must be addressed by both government and private citizens alike if long-term care recipients' lives are to improve and the increased demand for services is to be met.
Harvard Medical Research: Aging
Modifiable Factors Associated With Long Life
Fri, 22 Feb 2008 16:00:01 -0500
A healthy lifestyle during the early elderly years—including weight management, exercising regularly and not smoking—may be associated with a greater probability of living to age 90 in men, as well as good health and physical function. Additional topics at Aging More consumer-oriented research news at Consumer information
Coverage Improves Health and Reduces Heart Complications
Fri, 11 Jan 2008 11:41:02 -0500
A 12-year study of over 7,000 Americans shows that individuals without health insurance experience a dramatic improvement in their subsequent health trends when they become eligible for Medicare at age 65. Additional topics at Aging More consumer-oriented research news at Consumer information
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AskMen.com - Tips for men on living longer.
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Calorie Restriction Dieting - Information on extending lifespan by restricting calorie intake.
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DrLam.com: An Insider's Guide to Anti-Aging Medicine - Information about anti-aging and longevity.
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Effects of Human Growth Hormone in Men Over 60 Years Old - Article published in the New England Journal of Medicine. Describes Rudman's 1990 research about the effects of human growth hormone.
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Healthy Aging - Dr. Judith Ford's writings about the principles of healthy aging.
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Immortality.org - Links to articles related to aging and anti-aging.
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Life Extension Magazine - Magazine with articles related to anti-aging and life extension.
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MCW HealthLink: Aging - News and information about healthy aging from the Medical College of Wisconsin.
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MoreLife - Offers information on food, exercise, and supplements and discusses how they can help to prevent aging.
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Put Old on Hold - Online magazine with articles about healthy lifestyle choices and productive longevity.
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Reverse Aging Now Documentary - Scientists and seniors discuss longevity through anti-aging medicine.
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Scientific American: The Serious Search for an Anti-Aging Pill - August 2002 article on many scientists' quest for a pill that can prevent aging.
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