In general, the exercise guidelines set out by the American College of Sports Medicine give you a place to start when figuring out how often to workout. 1  For cardio: Depending on your goal, guidelines recommend moderate exercise five or more days a week or intense cardio three days a week to improve your health.
This Day In History: 04/04/1968 - Dr. King is Assassinated. Many historical events occurred on April 4th, and Russ Mitchell recaps them in this video clip from This Day In History. President William Henry Harrison became the first US President to die while in office when his cold turned into pneumonia.
On April 4, King was shot to death by James Earl Ray in his hotel in Memphis. President Johnson called a national day of mourning on April 7. In 1983 Congress cemented Kingâs legacy as an American icon by declaring the third Monday of every January Martin Luther King, Jr. Day.