Nowadays， people are living an increasingly longer life and in many countries there are more old people than young people. What are the advantages and disadvantages of this trend?
On medical care
A significant proportion of seniors aged 65 and older suffer from health problems and chronic diseases， robbing them of quality of life， rendering them less productive and running up a huge and unsustainable bill for medical care.
older people have limited regenerative abilities and are more prone to diseases， syndromes， and sickness.
A variety of issues relating to the well-being of the general public calls for funding. Yet， with a limited budget， there invariably will be a war over public funding between taking care of old people and educating the young，for instance.
4.Health expenditures are already skyrocketing and are expected to do so for a long time to come. The only current defense between this growing "age wave" and an already overburdened healthcare system is the hope of medical research breakthroughs， which will not come overnight.
1.In some places age discrimination does exist.
There has always been in the workplace the belief that older workers are less adaptable than younger people， in particular to changing technology.
Age alone is not a guarantee of ability. Many younger employees have more experience or skills than older staff, who may have stuck in one area or unit for most of their working life. Having compulsory retirement allows new ideas in an organization.
Evidence has been accumulating for decades that people in their 70s or even older are as capable of learning new skills as most people in their 30s and are well adapted to the modem economy， which requires brainpower rather than physical strength.
2.To give an example， Winston Churchill was at the retirement age of 65 when he became wartime Prime Minister， but he then led the country through five exceptionally stressful years.
With their rich experience in both work and life， many old people would make good consultants, instructors, coaches, doctors and psychologists, to name just a few.
While their contribution helps the economy grow， their invaluable knowledge and experience can be passed onto the younger work force.
Older employees have an immense amount of knowledge and experience.
Older employees are often extremely loyal and are more willing to implement company policies than younger less committed staff.
Impart knowledge to the younger generation
As it is expensive to raise a child， many young couples depend on their parents to look after their grandchild. While this can help keep costs down， there are many benefits to having seniors look after the children. Not only do they have extensive experience in raising their own progeny， these older people aren't as anxious and have a more relaxed attitude towards looking after babies and children.
His or her industrious work makes the nation more and more prosperous.
The employees sacrifice their wisdom and spend much of their life working and creating good economic benefits for the companies.