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Billions of hungry bacteria (the natural "intestinal fauna") that we all have in our large intestine then produce a variety of gases such as methane, hydrogen and hydrogen sulfide as by-products of this fermentation process. These vapors are known as intestinal gasses, and can cause stomach bloating until they leave the body as flatulence through the anus.

Millions of Americans experience gastrointestinal problems each year which range from indigestion, heartburn, gas, diarrhea, an ulcer, IBS and in more severe cases, sometimes even colon cancer. These problems which affect the gastrointestinal tract cause much discomfort and can be quite frustrating.

Dyspepsia, also known as indigestion or an upset stomach, is the medical term used to describe a burning or painful sensation in the upper abdomen. People are often heard saying that they have a sick feeling in the stomach or nervous stomach when they experience dyspepsia. Symptoms are usually as a result of overeating, eating too quickly or eating the incorrect food combinations.

Digestion is the process by which the body breaks down the food we eat into usable components. Our bodies use food similarly as a car engine uses gas– and this gives us the energy needed to live. When we put food into our mouths digestion has already started – because digestion means breaking food down into smaller molecules!

Diarrhea is one of those uncomfortable ailments that arrives unexpectedly and sometimes without warning, and we all experience it at one time or another. However, for some people, diarrhea is a daily occurrence – and just one of the many symptoms of Crohn’s disease. Crohn’s disease is a chronic condition that involves swelling and inflammation in the intestines and digestive tract.

The further into the atmosphere we climb, the thinner the air around us becomes, with less and less oxygen. Although the air remains constant, the barometric pressure decreases, resulting in fewer oxygen molecules being inhaled-- and it is this lack of oxygen that causes altitude sickness.

When we eat food, our body needs to break it down into usable nutrients and vitamins. The process of this breakdown starts off in the stomach. The stomach secretes an acid that is essential in the digestive process, as this acid helps in breaking down the food during digestion.