It is difficult to define when middle age ceases and old age starts .Usually a man feels older when they are unable to do things they used to do .Old Age and the aging mechanism are of course a biological occurrence which has its own dynamism, largely beyond our command.
It is strange no one expects to grow old but everyone expects to live long.
Aging is a Reality - prepare to accept Gracefully Facts and Figure- The senior citizens Acts 2063, Nepal defines the senior citizen as "people who are 60 years and above ".
- The total population of Nepal in 2010 is estimated to be about 28 million of which nearly 8% are aged 60 and over.
- In a study done in old age home of Kathmandu (2010) more than half of the residents were suffering from at least one chronic illness. Hypertension, gastritis and arthritis were the most common diseases.
- In a study done in Bhaktapur district (2009) the common problems felt by elderly people were pain and swelling of joints (65.7%), indigestion (63.7%), excessive tiredness (38.2%) and hypertension (35.8%).
1.Biologic theories
- Cellular theory
- Programmed aging theory
- Somatic mutation theory
- Wear and tear theory
- Auto immune theory
- Error theory
- Free-radical theory
- Cross linkage theory
- Disengagement theory
- Activity theory
- Continuity theory
- Social exchange theory
- Radiation theory
- Stress theory
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