Classical conditioning explains some kind of human behavior that is usually associated through interaction with the environment and is used in behavioral training. This type of learning was discovered by Ivan Pavlov in 1927 while conducting an experiment with dogs. In his theory he explains that as an individual, reactions are learned through the paring of neutral stimulus which would be defined as any event that does not result in overt behavioral response along with a stimulus of some significance (Coon & Mitterer, 2008). Pavlov termed the significant stimulus a conditioned stimulus (CS). This kind of stimulant causes is an often reflexive response from an individual. Pavlov referred to these responses as unconditioned stimulus (US) and unconditioned response (UR) respectively. In a situation where the US and UR were paired repetitively, an organism may tends to produce a behavioral response to the CS a conditioned he later named as conditioned response. The basic experiment that Pavlov used to evidently show how the learning process took place involved placing food within the outlook of a dog that then started salivating. The salivation extracted established a relationship between the unconditioned stimulus which is food and the unconditioned response which is the saliva. He then conducted another experiment, but this time he used a bell as the conditioned stimulus which took on the power to bring out the response of the conditioned response which is saliva (Kalat 2010). In his research he recorded how much the dogs salivated each time they were fed and soon he noted that the dogs learned to salivate once the door opened. Pavlov main objective was to understand behavior theory and his basic paradigm became the model for classical conditioning a theory that is important in explaining human behaviors which was carried out by John B Watson an American psychologist. The model explains why certain reflexive behaviors in people are performed in response to stimuli which did not beforehand suggest the behavior. Classical conditioning is said to evidently show the existence of involuntary reflexes which are said to be responsible for the association of the reflexes compelling. The principle of classical conditioning has been used to give an explanation for a range of developmental occurrence like fears and phobias in human beings. Today many scholars studying theories believe that fears and phobias mainly develop due to classical conditioning and they make use of treatment tactics such as flooding based upon the conditions (Davey, 1989)(; diNardo, Guzy, Jenkins &Bak, 1988). Systematic desensitization is a therapy that is used to help those people suffering from various phobias through making the person relax hence replacing the anxiety they feel that is caused by the phobia. The therapy is system as it is conducted step by step. Most people develop fears during child development. Children fear different things such as darkness heights flying, dentist office, selected animals like snakes dogs and so forth. Learning theorist suggest that repeated paring of the responses (both CS and UCS) results to fear. The main question that lingers in the minds of many is how classical condition explains