Your gut feeling is an actual subtle physiological reaction that occurs in your body and carries signals to your brain. Your gut, also known as the gastrointestinal tract is loaded with bacteria which form a complex neural network called the "enteric nervous system" - sometimes referred to as the "2nd brain".

Things such as, body temperature change, breathlessness, heart rate and perspiration are your body's response to those cues in your gut when faced with big decisions.

A recent decision-making gut study looked at two different groups of adults who were asked to purchase a new car. The group of adults who were asked to make a quick intuitive decision about their car purchase were later on found to be satisfied with their purchase 60% of the time. The car buyers who had an extended amount of time to use logic and research to think carefully about their decision to buy, were later found to be happy with their purchase only 25% of the time.

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Your body's intuitive responses take only seconds to show, but can take weeks to learn how trust it and follow its guidance.