Peppermint, like fish oil, is a double-edged sword when it comes to the stomach.
Peppermint tea, peppermint-oil capsules, and even peppermint candies are often used to settle upset stomachs - but these remedies can backfire on people with GERD.
The soothing and numbing effect of menthol tends to relax the valve that separates the stomach and esophagus (known as the lower esophageal sphincter), which can cause stomach acids to drift up the esophagus more easily, aggravating heartburn.
The more you weigh, the more likely you are to have heartburn.
A 2003 study in the Journal of the American Medical Association found that the risk of acid reflux symptoms increases along with body-mass index (BMI).
The association seems to be stronger in women than men (especially premenopausal women).
Explanations vary. Poor diet, excess body fat in the abdomen, and chemicals released by body fat have all been cited as possible culprits.
Prone to frequent headaches and heartburn? Think twice about reaching for the ibuprofen.
When used regularly, nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen or naproxen can trigger heartburn.
Some prescription drugs can too, including antibiotics, calcium channel blockers (for high blood pressure), bronchodilators such as albuterol (for asthma and COPD), osteoporosis drugs, and some sedatives.
Consult your doctor if you think your Rx is causing heartburn - don't just decide to stop taking a drug on your own.
Wondering what's causing your heartburn? Take a look across the dinner table; your parents, not your plate, may be partly to blame.
In recent years, twin studies have suggested that 30 to 45 percent of your risk for GERD is dependent on genetic factors. (The rest is up to you: what you eat, whether you smoke, whether you exercise.)
Experts aren't entirely sure what explains the hereditary nature of GERD. It could be due to inherited physical traits, such as abnormalities in stomach function or a hypersensitivity to stomach acids.
Stress does seem to trigger heartburn, but the relationship is trickier than you might think.
Stress does not cause an off-the-charts surge in stomach acid production.
However, a study in the "Journal of Psychosomatic Research" suggests that a heartburn patient's perception of his symptoms - and not the actual levels of stomach acid - are associated with stress.
In other words, stressed people may be more aware of heartburn symptoms or the neurological effects of stress might ratchet up pain receptors in the esophagus.