Cognitive decline or psychological ageing is a problem when it occurs in the thought process or a decline in mental processes due to old age. It includes loss of memory, learning disability, concentration difficulties, in other words slowing down of mental processes. The researchers also suggest that reduced mental stimulation may lead to a decrease in cognitive functioning as people grow older. An enriched environment is very important for an ageing person to deal with the cognitive decline. Lifelong learning is one of the ways to stay mentally active in old age which helps preventing psychological ageing. Instead of ending education at a specific age, one should keep on learning and enhancing knowledge. School and college is not the only way to acquire knowledge. After finishing study at a point of time is not the end of acquiring knowledge. It may be acquired afterwards also through self directed continued learning termed as Lifelong learning. Lifelong learning is the continued learning/education or information gathering to enrich one’s knowledge through various methods like educational tours, community service, use of internet, attending workshops, getting involved in enriching discussion with the people of varied areas etc. Lifelong learning is the one of the significant ways to keep oneself active after the age of retirement. After the retirement people start feeling worthless. By virtue of this feeling of worthlessness problems start in the elderly. With the feeling of worthlessness the psychological ageing starts, which changes their self concept about themselves and further it affects their self esteem.