INTRODUCTION. Gastroesophageal reflux, also called acid reflux, occurs when the stomach contents back up (reflux) into the esophagus or mouth. Acid reflux is a normal process that occurs in healthy infants, children, and adults. Most episodes are brief and do not cause bothersome symptoms or problems.
How often to replace: 1  Mascara: every 3-6 months (which means youâll have to throw it away before itâs used upâ¦ the same goes for a lot of these products, probably) 2  Eye shadow: every 6 months. 3  Eyeliner (liquid): every 3-4 months. 4  Eyeliner (pencil): every 6-12 months.
Replace toothbrushes at least every 3â4 months. The bristles become frayed and worn with use and cleaning effectiveness will decrease.11 Toothbrushes will wear out more rapidly depending on factors unique to each patient. Check brushes often for this type of wear and replace them more frequently if needed.