The diastolic blood pressure number or the bottom number indicates the pressure in the arteries when the heart rests between beats. A normal diastolic blood pressure number is 80 or less. A diastolic blood pressure between 80 and 89 is normal but higher than ideal. A diastolic blood pressure number of 90 or higher, on repeated measurements, is considered to be hypertension or high blood pressure.
(Learn how and when to remove this template message) Air traffic controllers are people trained to maintain the safe, orderly, and expeditious flow of air traffic in the global air traffic control system. The position of air traffic controller is one that requires highly specialized knowledge, skills, and abilities.
, FAA Air Traffic Control Specialist- Sept 1976 - April 2006. 1  To work for the FAA as an air traffic controller , one must be 18 years of age, the maximum age one can start training is aged 30 and they must retire at 56 years old. However, if someone had previously held an air traffic controller position such as in the military, they may join up to 31 years of age.