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.
Presidential ages have climbed, but so has life expectancy. Today, the life expectancy at birth for a white man is 76.6 (for a white woman, it's 81.3). So while Trump and Clinton may be nearly 30 years older than the youngest president ever, they're also (like Roosevelt) a few years shy of the norm for their race and genders. (But then, these are life expectancies at birth â a 70-year-old man like Trump could be expected to live longer than these life expectancies.