Aprofessor suggests that the increasing problem of obesity in the united states might be attributable to an inherited predisposition to love the taste of sweets and fats. although these foods our ancestors to survive food shortages, today they are easily available and americans are eating too much of them. the professor's suggestion belongs to the field of psychology.

The professor's suggestion belongs to the field of "evolutionary psychology".

Evolutionary psychology is a hypothetical way to deal with psychology that endeavors to clarify valuable mental and mental qualities, for example, memory, recognition, or dialect—as adjustments, i.e., as the practical results of regular determination.  

The motivation behind this methodology is to bring the utilitarian state of mind about organic instruments, for example, the insusceptible framework into the field of brain research, and to approach mental components correspondingly.

a is the final ! : )