To prevent symptoms of a hiatal hernia:
Wear loose clothing. Anything that presses on the stomach can aggravate hiatal hernia symptoms.
When your stomach is full, avoid bending over or lying down. This increases abdominal pressure and makes gravity work against you, so heartburn is more likely.
Do not bend over or lie down for two to three hours after eating.
To prevent hiatal hernia:
Maintain a reasonable weight.