The duodenum (the first and shortest segment of the small intestine) is a busy place: amino acids are extracted from proteins, fatty acids and cholesterol from fats, and simple sugars from carbohydrates.
Individuals use intuition and more deliberative decision-making styles interchangeably, but there has been some evidence that people tend to gravitate to one or the other style more naturally. People in a good mood gravitate toward intuitive styles, while people in a bad mood tend to become more deliberative.
The decision-maker's environment can play a part in the decision-making process. For example, environmental complexity is a factor that influences cognitive function. A complex environment is an environment with a large number of different possible states which come and go over time. Sunk-cost fallacy is a specific type of framing effect that affects decision-making. 2  It involves an individual making a decision about a current situation based on what they have previously invested in the situation.