Numerous worldwide health, ageing and retirement surveys contain questions pertaining to pensions. The Meta Data Repository – created by the non-profit RAND Corporation and sponsored by the National ...
The age of an adult human is commonly measured in whole years since the day of birth. Fractional years, months or even weeks may be used to describe the age of children and infants for finer resolutio ...
Several drugs and food supplements have been shown to retard or reverse the biological effects of ageing in animal models; none has yet been proven to do so in humans.Transcendental Meditation (TM tec ...
Biological theories 95-year-old woman holding a five-month-old boyAt present, the biological basis of ageing is unknown. Most scientists agree that substantial variability exists in the rates of agein ...
Though many scientists state that radical life extension, delaying and stopping ageing are achievable, there are still no international or national programmes focused on stopping ageing or on radical ...
Main article: Successful ageingTwo men practicing Tahtib. One of them is balding, suggesting vigorous activity at an advanced age.The concept of successful ageing can be traced back to the 1950s and w ...
Psychologists have examined coping skills in the elderly. Various factors, such as social support, religion and spirituality, active engagement with life and having an internal locus of control have b ...
Steady decline in many cognitive processes is seen across the lifespan, accelerating from the twenties or even thirties. Research has focused in particular on memory and ageing and has found decline i ...
Legal An elderly manThere are variations in many countries as to what age a person legally becomes an adult.Most legal systems define a specific age for when an individual is allowed or obliged to do ...
In some cultures there are other ways to express age: by counting years with or without including current year. For example, it could be said for the same person that he is twenty years old or that he ...
An animal's life is often divided into various age ranges. However, because biological changes are slow-moving and can vary within one's own species, arbitrary dates are usually set to mark periods of ...
Main article: Evolution of ageingBecause evolution is the unifying theory of biology, understanding how evolution works is essential for explaining why we age. Ageing evolves because of the interactio ...
In biology, senescence is the state or process of ageing. Cellular senescence is a phenomenon where isolated cells demonstrate a limited ability to divide in culture (the Hayflick Limit, discovered by ...
The first formal studies of ageing appear to be those of Muhammad ibn Yusuf al-Harawi (1582) in his book entitled Ainul Hayat, published by Ibn Sina Academy of Medieval Medicine and Sciences. This boo ...
Ageing (British English) or aging (American English) is the accumulation of changes in a person over time. Ageing in humans refers to a multidimensional process of physical, psychological, and social ...
