Living to 110 or 120! Sound impossible? Not if you look at historical trends. In 1800, the average life expectancy was 27 years. In 1900 it was 47. Today, health-conscious adults can expect to live to 100! In the first book to use current medical data to predict future trends, George Webster, Ph.D., noted authority on aging, examines the astonishing advances science is making to extend life.