Alternatively, you can request a copy of your security clearance investigation status through a Freedom of Information Act (FOIA) request through your sponsoring agency. For the majority of clearance holders, a privacy act request through the Defense Manpower Data Center provides the necessary information. Once youâve obtained your security clearance status, be sure to update your Cleared Network profile with your expiration date and other details.
Having other health problems, such as heart failure or an abnormal heartbeat (arrhythmia) may also trigger a flare-up. In some cases, the cause is not known. Here's what happens during an attack: 1  Your lungs may suddenly produce more mucus.2  Or the airways of your lungs (bronchial tubes) may suddenly get narrower. 3  These two things reduce the airflow in your lungs. 4  And that makes it harder to breathe and makes your coughing worse. Your lungs may suddenly produce more mucus. 2  Or the airways of your lungs (bronchial tubes) may suddenly get narrower. 3  These two things reduce the airflow in your lungs. 4  And that makes it harder to breathe and makes your coughing worse.
Understanding Heart Attacks. As a large, muscular pump, the heart relies on a constant supply of oxygen-rich blood to function. Without a blood supply, heart muscle begins to die. This is exactly what happens during a heart attack.Myocardial infarction, the medical term for heart attack, literally means heart tissue damage or death..Heart attacks most commonly occur when one or more of the coronary arteries â a network of blood vessels that supply blood to the heart â become blocked.Heart muscle becomes starved for oxygen and nutrients.nderstanding Heart Attacks. As a large, muscular pump, the heart relies on a constant supply of oxygen-rich blood to function. Without a blood supply, heart muscle begins to die. This is exactly what happens during a heart attack.