Nutrition is an interesting subject because it is so wide ranging and contains so many different sciences. The psychological aspects of food are intertwined with the physiological because the mind is greatly involved in food selection and food preference. For example, the cephalic phase of digestion begins before any food is consumed, and is the first digestive process, being triggered by the thought or smell of food. The cephalic phase of digestion was demonstrated by Pavlov and his salivating dogs. These dogs, when trained, could be made to begin the digestive process simply through the ringing of a bell. Food selection is also highly psychological, as certain bad experiences with food can cause a dislike of them for life, and this is based largely on the development of bad memories, something that can occur in childhood. Likewise, desirability in food can be enhanced, and this is something that is achieved by advertisers who spend large sums of money in order to increase the desirability of their foods to the customers.
Eat Well, Stay Healthy, protect Yourself
RdB
