A hiatal hernia occurs when the upper part of your stomach pushes up through your diaphragm and into your chest region. The diaphragm is a large muscle that lies between your abdomen and chest. You use this muscle to help you breathe. Normally, your stomach is below the diaphragm, but in people with a hiatal hernia, a portion of the stomach pushes up through the muscle. The opening it moves through is called a hiatus. This condition mostly occurs in people who are over 50 years old.
A commodity generally refers to an agricultural product that is bought and sold such as corn, coffee, wheat, etc. Energy commodities include gas, electricity, oil, etc.
1. Something produced by human or mechanical effort or by a natural process, as: a. An item that is made or refined and marketed: farm products; soaps, detergents, and similar products; travel products such as vacation trips. b. Such items considered as a group: sold a lot of product in May. c. A preparation, such as a gel, used for styling hair: began to use product soon after he became famous. d. A substance resulting from a chemical or nuclear reaction.