Ageing is a natural weakening the physical and mental faculties due to age. It is a continuous process , present from the beginning of existence and is common to all beings and all structures of the body : molecules, cells , tissues and organs specialized . For a category of people , old age is not only a long string of days lost , compassion and lamentations that are not properly treated , the family did not pay the necessary attention that are not visited as they would like , that They are forgotten , and often , completely marginalized by family and society. For the elderly , the family is fundamental vital factor . Age is the price we have to pay to get to wisdom , and both give life label which shows the value of each individual. Only by aging we can achieve that life is priceless and we take final verdict hardly although it is impossible to accept the final . We know that old age starts around the age of 65, but sometimes we find that it occurs when a person stops paying attention to and he no longer feels an important link in the circle of life . Therefore , we often see people 40 years old and at 80 years young and the physically and mentally as Was shown the usefulness and sense of optimism presence provides a slowdown in the aging process. Also involvement in various activities where they can interact with people of the same age or even younger to keep the mind active . For example , chess , various debates on a particular theme (the subject of a book , fundraising for a project ) , joining a club, helping grandchildren with homework or practical works are various activities that can include the elderly , giving them the opportunity to demonstrate their intellectual abilities , organizational , and usefulness of life experience . Thus, young people would have a lot to learn .