Now that many people think that it comes from the stomach, it is not exactly true. It originates when excessive gas in stomach moves back and forth in the intestines.
Only a few people are aware that belly growls on being hungry and blood sugar levels also dip in the same case. The growling sound indicates that it is the time to feed stomach so that the intestines can get much needed nutrients from the blood. As soon as something goes into the stomach, the growling sounds calms down and digestive system starts absorbing the food instead of moving air.
However, the main question which might be doing the rounds of most people is how does the air get trapped inside the digestive tracts? One of the primary reasons is talking between the leans. When you talk while having meals, the air enters the digestive tract. In addition, drinking excessive fluids or eating too fast at the time of working out can also enable air to enter human body.
Here is a glance at the process which makes the growling sound
The process which indicates that it is the time for body to feed the hungry stomach is known as Migrating Motor Complex, also known as MMC process. In other words, it means that the intestines and stomach get involved in sensing the absence of food in the body. Consequently, receptors in the stomach wall end-up creating waves of electrical activity triggering the sense of hunger. It is important for you to know that poor MMC functioning can cause nausea, indigestion, vomiting and abdominal pain.