In the study of human longevity, it is not only a question of teaching young people how to grow old, but also old people to grow older. Old age with impaired faculties and physical infirmities is hardly a blessing to individuals or their friends. Many of the ailments to which old people are subject, which worry and distress them, tend to shorten life, are amenable to surgical treatment, and would be unhesitatingly so treated in young people, but which are left alone in them on account of the fear of operations and anesthesia on the aged.
The scriptural axiom, "three-score years and ten" as a reasonable limit to human life, has become so firmly imbedded in the layman's mind that those whose friends have approached this age generally feel that it is better for them to suffer what ills may have come to them, rather than take any chances in
TUTTLE JP. RESULTS OF SURGERY IN THE AGED.. JAMA. 1901;XXXVI(10):615-617. doi:10.1001/jama.1901.52470100007001a