What are the risk factors

-obesity        -pregnancy

-smoking        -dry mouth

-asthma         -diabetes

-delay of stomach emptying

-hiatal hernia (bulging of stomach)

Common disorders:

-scleroderma (connective tissue disorder)

-Zollinger-Ellison Syndrome (high levels of gastrin-hormone that secretes gastric acid)

-Hypercalcemia increases gastrin production, leading to increased acidity