Today, about 50,000 Americans are 100 or older. Life expectancy rose about 30 years during the last century in industrialized countries because of lower death rates from infectious diseases, and it probably will continue to rise. Even so, people continually seek methods to extend their own lives. However, most experts agree that these methods are largely unproven, and all agree that no treatment works for everyone. We all have different needs for energy sources.
Some experts think the focus on hormones and other supposed life extenders is misguided.
We must cope with accumulated DNA damage, cell damage, muscle atrophy, bone loss, decreased muscle mass and joints worn out from overuse during a lifetime of bipedal locomotion. His findings indicate that hormones and antioxidants are not making much difference in longevity. He said that regular exercise and a good diet can achieve the same results at less expense. Recent evidence suggests that good health may be extended and disability delayed by at least seven years if people stop smoking, maintain an appropriate weight and remain physically active. This is Jan Newhart's philosophy.