Why Aging Should Be Treated
David Sinclair’s interest in aging began long before he became a scientist. As a child in Australia, he was curious about how living things worked and why they changed over time. That curiosity became personal as he watched people he loved grow older, especially his grandmother and later his mother, whose final years showed how often old age brings frailty, dependence, and a loss of dignity rather than a peaceful long life.
Modern medicine has helped people survive infections, injuries, and many once-fatal diseases. That success has raised average life expectancy, but it has not solved the deeper problem. Many people now live longer only to spend their last years battling cancer, heart disease, dementia, broken bones, and slow physical decline. We have added years to life, but not always life to those years.
The central argument is simple: aging itself is the main risk factor behind most major diseases, so treating diseases one by one will never be enough. If cancer is cured, many people will still die soon after from something else caused by the same underlying decline. That is why aging should not be treated as a natural background condition that medicine politely ignores. It should be treated as the root problem.
This change in thinking matters because medicine tends to focus on the final event, such as a heart attack or infection, rather than the long process that made the body vulnerable in the first place. Sinclair argues that this is like fixing leaks one by one while ignoring the broken water main. Once aging is seen as a treatable condition, research, funding, and healthcare can shift toward keeping the body resilient for longer, instead of waiting for it to fail.
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