Maslow's Hierarchy of Needs. Definition. Maslow's hierarchy of needs is a theory of motivation and personality developed by the psychologist Abraham H. Maslow (1908â1970). Maslow's hierarchy explains human behavior in terms of basic requirements for survival and growth.
When you use ice to cool the ingredients for ice cream, the energy is absorbed from the ingredients and from the outside environment (like your hands, if you are holding the baggie of ice!).
The mechanisms underlying ice cream headache are not fully understood. The palate and throat have a liberal supply of blood vessels and nerves. Ice cream applied to the mucous membrane of the palate and throat stimulates blood vessels, nerves and muscle fibers and causes local discomfort. But a broader distribution of stimuli from the area of contact is required to generate headache.