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CONCEPT OF AGING

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Today, people are living longer than ever before due to advances in education, technology, medicine, food distribution, and sanitary conditions. So, nowadays, it is not unusual to meet people who are in their 70s, 80s, 90s, and some who are close to 100 years old. However, “adding the years to life,” does not mean that we are also able to “add more life to the extra years.” In other words, living longer does not always mean we will also have better or a good quality of life in later years. Some older adults in late life are healthy and independent and are still very involved in their family and community lives. Then again, it is not unusual to see older persons who can get very ill and are not able to get themselves out of bed. There is no single universally accepted definition of aging. Aging is best looked at as a series of changes that occur over time, contribute to loss of function, and ultimately result in the death of a living organism. The maximal life expectancy for humans tod...

AGEING

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  Aging is one of the most complex and poorly understood phenomena known in science, despite the fact that it represents one of the most significant challenges of human longevity. Aging is a universal phenomenon; every single multicellular organism, from the simple bacterium to the complex human being, experiences it. Nevertheless, aging is a very complex and dynamic process. It encompasses a vast range of phenomena, which we have no clue as to how they interrelate, their mutual influence on one another, the interplay between intrinsic and extrinsic factors, the influence of the environment, and how this process impacts the organism. Thus, the study of aging is a complex and very difficult task, but it is an urgent and necessary challenge. Ageing or aging is the process of becoming older or we can say that it is the process in which structural and functional changes accumulate in an organism as a result of the passage of time. The changes manifest as a decline from the organism's...

DEMOGRAPHY OF AGING

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Over the past few years, we have seen the remarkable growth in the number and proportion of old age persons worldwide. Such a rapid, large, and ubiquitous growth has never been seen in the history of civilization. The major reason behind this is that in the last few decades, the world’s population has continued on its remarkable transition path from a state of high birth and death rates to low birth and death rates coupled with improvement in health services & standard of living. Aging Demography of India ·          The world of the 21st century is reeling under the pressure of an ageing population. ·          Proportion of elderly people in population of the countries across the world is increasing and same is true for India also. ·          The growth in elderly population is due to the longevity of life achieved because of economic well-being, better medicines...