These statistics are presented only in the hope that they may be interesting to some people. The word 'prevalence' of Insomnia usually means the estimated population of people who are managing Insomnia at any given time (i.e. people with Insomnia). The term 'incidence' of Insomnia means the annual diagnosis rate, or the number of new cases of Insomnia diagnosed each year (i.e. getting Insomnia).
Exercise Stress Test. A stress test, sometimes called a treadmill test or exercise test, helps a doctor find out how well your heart handles work. As your body works harder during the test, it requires more oxygen, so the heart must pump more blood. The test can show if the blood supply is reduced in the arteries that supply the heart.
Stress tests are tests performed by a doctor and/or trained technician to determine the amount of stress that your heart can manage before developing either an abnormal rhythm or evidence of ischemia (not enough blood flow to the heart muscle). The most commonly performed stress test is the exercise stress test.