osÂ·teÂ·opÂ·aÂ·thy. n. 1. A system of medicine practiced by licensed osteopathic physicians that involves palpation and noninvasive manipulation of the musculoskeletal system in the diagnosis and treatment of physical dysfunction, in conjunction with other medical, surgical, pharmacological, and therapeutic procedures.
Average Age of Presidents. The majority of the presidents were between the ages of 50 and 59 when they were elected into office. The youngest elected president was John F. Kennedy at age 43. The oldest elected president was Ronald Reagan at age 69.
Donald J. Trump is the oldest man ever elected to the office of President of the United States. Trump was born on June 14, 1946. When he was sworn in as president on January 20, 2017, he was 70 years, 7 months and 6 days old. Trumpâs age today is 71 years, 7 months, 1 day. Trump supplants the previous oldest president, Ronald Reagan, who was 69 years, 11 months and 14 days old when he was first sworn in on January 20, 1981.