If you answered yes to 3 or more of specific questions listed, medical clearance will be requested. Please talk with your doctor BEFORE you become more physically active. Tell your doctor your intent to exercise and to which questions you answer yes.
If you honestly answered no to all questions you can be reasonably positive that you can safely increase your level of physical activity gradually.
If your health changes so you then answer yes to any of the above questions, seek guidance from a physician.