Why is it important to understand internal regulation processes in order to comprehend human behavior?

Why is it important to understand internal regulation processes in order to comprehend human behavior? Explain hunger as an internal regulation-related condition and how it shows in behavior.

The study of human behavior has played an important role in improving the lives of people who have mental health and behavioral disorders. It has also facilitated advancements in areas such as early childhood education, organizational behavior management, and public health.