I remember an old cartoon: an elderly man is sitting hunched over on the examining table, obviously in great pain and distress. His doctor says, “You know all those extra years that modern medicine promised us? You’re getting them now.”
Better health care programs, healthier life styles, easy access to plentiful food, advances in medicine and reduced child mortality mean that most of us in developed countries can now expect to live much longer than our ancestors just a few generations ago. In the year 1800, the average life expectancy in Canada was just below 40 years; now it’s 81. Biomedical science in particular has significantly extended our lives. If we have a heart attack or stroke, we’re much more likely to survive it now. Our increased longevity is a great achievement, a medical and cultural success story.
But although we’re living longer, we’re not living better. The proportion of seniors living in poor or moderate health has remained unchanged at 50%. Our increased life expectancy has brought with it an increased risk of age-related conditions: chronic diseases, disability and dementia. The pain of spinal stenosis and arthritis, the medical complications of diabetes, and the decline in cognitive function greatly reduce the quality of our lives. And the repercussions are felt throughout society, as we strain our family networks, financial resources, the healthcare system and the housing sector with increasing needs for care and treatment and for supportive housing. Younger people are struggling in their lives too, and some resent the resources now required by the elderly who, they may claim, have had their turn.
Medical research focuses heavily on increasing the quantity, rather than the quality, of life. For example, far more research money is spent on cancer than on dementia research, although dementia contributes much more morbidity than cancer. Funding for ageing research is miniscule relative to its enormous impact on mortality, morbidity and society. Maybe scientists and politicians view death as the great enemy, and therefore feel that preventing death should be their main goal. But what do patients think? A survey of more than 9,000 people across seven European countries, which explored people's priorities when confronted with a serious disease giving them less than one year to live, found that 71% thought it more important to improve the quality rather than the quantity of life for the time they had left; 4% thought it more important to extend life irrespective of quality, and 25% said both quality and extending life were equally important. So maybe it’s time to shift the main focus of medical research funding from the main causes of death of the elderly, such as cancer and heart disease, to the main causes of morbidity of the elderly, such as dementia and arthritis. It would mean a better quality of life for us in old age, and a reduced burden on the rest of society.