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.
13. 1968 April 4th Martin Luther King, Jr. is shot and killed by James Earl Ray. The assassination led to a nationwide wave of race riots in Washington D.C., Chicago, Baltimore, Louisville, Kentucky, Kansas City, and dozens of other cities.ubÄek was forced to resign as first secretary in April 1969 and for the next few years a process of Normalization which included the Removal of reforms implemented in 1968 and those who had been instrumental in the reforms from the Communist Party of Czechoslovakia, mass media, judiciary, social and mass organizations.