You are right too.
But in the last two decades, there is a lot of work going on med sciences. A mountain of research work is going on quality aging and quality of life. I saw one of the Opera show, who is a big promoter of Life extension programs. Renowned Cardiologist Dr. Oz is usually her guest. They visited five cities in the world known for longest ages.
They are all inland small towns in California, Okinawa. japan, Amazon. Brazil and 2 more countries. The common factor was that life expectancy was over hundred years and residents were all physically active. In fact a california cardologist surgeon is 94 years old and still performing bypass operations. They showed a video of his actual bypass operation with Dr. OZ as a guest surgeon. ( See Google search) and a 103 years old farmer in Brazil.
It was an amazing episode. The point is that wisdom has no boundaries. Progress chapter will never close. Allah Subhan has created man with ultra brain. Two thousand years back, average life expectancy used to be 35-40, now its active 80. With stem cell technology, transplants and medicinal progress, it is bound to cross 100 in nest 25 years. An optimistic view says that it will cross 200 years in next 500 years. This looks a bit strange but not impossible. Who could have imagined just 100 years back that we will be going to moon, visiting and docking on space station as a usual monthly Nasa operation. Drones flying over Pakistan, controlled from Virgina. If we can make a monster Airbus A-380, carrying 800 passenger, a flying city into air every day, then every thing is possible.