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.
The family returned to the United States when Cruz was 4. The Constitution gives three eligibility requirements to be president: one must be 35 years of age, a resident within the United States for 14 years, and a natural born Citizen, a term not defined in the Constitution.