Millions of people know that feeling: as soon as they go to bed, a burning sensation rises from the chest to the throat, an acidic taste invades the mouth and sleep becomes a battle against the body itself. Nocturnal gastroesophageal reflux not only ruins rest; Over time it can lead to more serious problems if it is not controlled in time. The good news is that, in most cases, it can be prevented with relatively simple changes in habits.

Reflux occurs when the lower esophageal sphincter—a type of muscular valve that separates the stomach from the esophagus—relaxes at inappropriate times, allowing gastric acid to rise. During the day, gravity and the upright position help that acid return quickly to the stomach. But at night, when lying down, this help disappears and the acid content can remain in contact with the esophagus for longer, causing irritation, cough, hoarseness and sleep interruptions.

Specialists agree that gastroesophageal reflux disease (GERD) affects a significant proportion of the adult population, and its nocturnal version is usually the most annoying because it directly compromises the quality of rest.

Keys to prevent reflux

Take care of the schedule and content of the dinner. Eating a heavy dinner and going to bed shortly after is one of the most harmful combinations. Experts recommend allowing at least two to three hours to pass between your last meal and bedtime. In addition, it is advisable to avoid very abundant, fatty, spicy or high-citrus, tomato, chocolate, mint or coffee dinners, foods that tend to relax the esophageal sphincter or increase stomach acidity.

Raise the head of the bed. Sleeping completely flat makes it easier for acid to travel more freely into the esophagus. Raising the head of the bed between 15 and 20 centimeters—using blocks under the legs or a specific wedge, not simply stacking pillows—helps gravity work in your favor and reduces nocturnal episodes significantly.

Choose your posture well. Sleeping on the left side is associated with less reflux, since in that position the stomach is below the esophagus, making it difficult for acid to rise. Sleeping on the right side, on the other hand, tends to favor it.

Moderate alcohol and quit tobacco. Alcohol relaxes the esophageal sphincter and increases acid production, so its consumption at night usually aggravates symptoms. Tobacco produces a similar effect and also reduces saliva production, which normally helps neutralize acid.

Monitor body weight. Excess weight, especially abdominal weight, increases pressure on the stomach and causes its contents to move towards the esophagus. Losing a few kilos, when overweight, usually results in a notable improvement in symptoms.

Avoid tight clothing at bedtime. Clothing or belts that are too tight around the abdomen increase intra-abdominal pressure and can worsen reflux.

Review medication with your doctor. Some drugs—such as certain anti-inflammatories, sedatives, or blood pressure medications—can relax the esophageal sphincter or irritate the gastric mucosa. If symptoms persist, it is advisable to consult a professional to check if any common treatment is contributing to the problem.

When to go to the doctor

Although the above measures resolve or improve symptoms in many cases, specialists warn that frequent episodes of reflux should not be taken lightly. If nocturnal heartburn recurs several times a week, if swallowing difficulties, involuntary weight loss or chest pain appear, it is necessary to see a doctor. Poorly controlled reflux for years can lead to complications such as esophagitis or alterations in the tissue of the esophagus, so diagnosis and professional follow-up are key.

In short, avoiding nocturnal reflux does not depend on a single magical solution, but on the combination of several habits: having an early and light dinner, raising the head of the bed, sleeping on the left side and moderating alcohol and tobacco consumption. Small adjustments that, sustained over time, can restore something as valuable as a peaceful night's sleep.

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