3. Going to Bed Immediately After Eating or Drinking Alcohol

Another habit that deserves attention is combining a late meal with alcohol and then going directly to bed.

Alcohol can relax the lower esophageal sphincter, the muscle that helps prevent stomach contents from moving back into the esophagus. For some people, this can worsen acid reflux and nighttime heartburn.

Alcohol can also interfere with normal sleep architecture. Although a drink may make you feel sleepy initially, it can contribute to fragmented sleep later in the night.

Regular heavy alcohol consumption is also associated with several serious health problems, including certain cancers. The relationship is not limited to the stomach, and alcohol should not be described as a simple bedtime habit that directly causes stomach cancer.

If you drink alcohol, moderation matters. For people who experience reflux, avoiding alcohol close to bedtime may also reduce nighttime symptoms.

Similarly, drinking very large amounts of fluid immediately before sleep can lead to repeated nighttime trips to the bathroom, disrupting restorative sleep.

What Actually Raises the Risk of Stomach Cancer?

Rather than focusing on one dramatic bedtime habit, it is more useful to understand the established risk factors.

One of the most important is Helicobacter pylori (H. pylori) infection. This bacterium can cause chronic inflammation of the stomach lining and is a well-established risk factor for gastric cancer.

Other factors include smoking, a family history of stomach cancer, certain inherited genetic conditions, chronic gastritis, and diets high in certain preserved or heavily salted foods.

Age and geographic background can also influence risk.

Importantly, having a risk factor does not mean that someone will develop cancer. Likewise, someone without obvious risk factors can still become ill.