<span>Fat cells can do this to a person. These cells, which may be comprised of an excess amount of fatty tissue, could be part of what constitutes the hunger drive in a person, leading them to want to consume food at times when it would not be prudent, leading to weight gain.</span>
It depends on when they either step down or more likely, die.
The Discipline of Psychology There are three important concepts to remember when defining psychology: science, behavior and mental processes. When defining psychology for a friend I would first simply just give him/her the standard book definition, which is the scientific study of behavior and mental processes. But, psychology can be defined in many different ways. Another definition of psychology could be the scientific study of the human mind and its functions such as those affecting behavior
It allowed farmers to plant water wherever, and help make dry soil more suitable for planting overall.