Causes- GERD occurs due to malfunctioning of the lower esophageal sphincter. The common risk factors include Obesity Stress Ahiatal hernia Consuming particular foods like carbonated beverages, coffee, chocolate, etc. Drinking certain beverages, such as alcohol, or coffee Certain medications, such as aspirin Pregnancy Connective tissue disorders, such as scleroderma Delayed stomach emptying Smoking (active or passive) Low levels of physical exercise