What is a MEC? A Modiï¬ed Endo wment Contract, or a MEC, is a special type of life insurance under federal income tax la w. Speciï¬cally, the law prescribes a test that is intended to differentiate bet ween policies that are pu rchased primarily for certain tax advantag es, versus policies that are purchased primarily for death protection.
Other Causes: Stomach growling. Some of the less common causes of Stomach growling may include: 1  HIV infection. 2  Hypothalamic lesion. 3  Addison disease. 4  Acromegaly. 5  Hyperthyroidism. 6  Cushing syndrome. 7  Insulinoma.
Causes of Abdominal Sounds. The abdominal sounds you hear are most likely related to the movement of food and air through your intestines. When your intestines process food, your stomach may grumble or growl. The walls of the gastrointestinal tract are mostly made up of muscle. When you eat, the walls contract to mix and squeeze the food through your intestines so it can be digested. This process is called peristalsis.