Cancer Archive

A 2022 study suggests that eating meat (including poultry) fewer than five times a week may protect people from cancer. Consuming only fish and no meat or following a vegetarian or vegan diet may offer even greater protection.

Colorectal cancer is the second leading cause of cancer deaths in the United States, and rates are rising, particularly in younger people. It can be prevented with screening tests; there are several different types of tests that are performed in different ways, and guidelines for when testing should begin and how often people should be tested.

Among people with chronic heartburn, sleeping on the left side appears to help backed-up stomach acid leave the esophagus faster than sleeping on the right side or back, according to a study in the February 2022 issue of The American Journal of Gastroenterology.

When doctors say that it's okay to take proton-pump inhibitors (PPIs) "on demand" for chronic heartburn, the advice doesn't apply to everyone. PPIs inhibit the production of stomach acid, which can back up into the esophagus and can cause pain (heartburn) and damage the lining of the esophagus. People with damage to the esophagus often stay on PPIs long-term to prevent further problems. People without damage to the esophagus can take a short course of PPIs as needed.

Everyone feels bloated at times after eating. Bloating is a feeling of tightness, fullness, or pressure in the belly that comes along with abdominal swelling and mild to intense pain. Excessive gas buildup from a sluggish digestive system and problems digesting certain foods are the leading causes. While most bloating goes away after a while, for regular occurrences, people should examine their diet for trigger foods and use over-the-counter anti-gas remedies as needed. In cases of frequent or extended bloating, a doctor should see if other problems are present.

There is a lot of anecdotal information about people using apple cider vinegar to treat heartburn, but no published research examining the validity of it.

Emotional stress can aggravate gastroesophageal reflux disease (GERD), a condition in which gastric acid washes backward into the esophagus from the stomach. Managing stress through meditation or exercise can help.

There are several at-home screening tests for colorectal cancer. The most accurate are a fecal immunochemical test (FIT) and a multitarget stool DNA (mt-sDNA) test (Cologuard), also known as a FIT-DNA test. The FIT test uses antibodies to detect blood in stool, and must be done once a year. The FIT-DNA test can identify DNA from cancer cells in the stool and also has a FIT component to look for blood. This test may be repeated once every three years.

Gut bacteria may influence our emotions and cognitive capabilities. For example, some bacteria make oxytocin, a hormone the body produces that encourages increased social behavior. Other bacteria make substances that cause symptoms of depression and anxiety. Still others make substances that help people to be calmer under stress. Gut bacteria also have been shown to influence people's vulnerability to certain brain diseases, including Alzheimer's disease, Parkinson's disease, and autism. For example, a substance found in the brains of people with Parkinson's disease (synuclein) is made by gut bacteria and can travel via nerves from the gut to the brain.

Scary or misleading claims about things that may cause cancer are so plentiful that it's hard to know which ones to take seriously. A new website developed by experts aims to provide reliable information about whether a particular cancer claim is true.