the science behind fear. why do we feel fear, how we feel fear, when do we feel fear, etc

The Science of Fear

There are instances in life when we feel afraid and are unable to stay calm of feel comfortable. This being afraid is called fear. Sciences have studied fear for many years and related it to activities that are taking place in the brains of people in the world (Gardner, 30). This essay will look at fear from the scientific viewpoint and help people understand what activities are behind fear, when and why people fear.

Fear, according to scientists, is an activity in the brain that happen with a certain kind of stimulus. The reaction of the brain when something from the outside of within itself happens leads to the release of important substances that affect the normal functioning of the body (Wise, 20). It is normal for any person to feel fearful and ready to defend himself or herself. This desire to exercise self-defense is the action of the substances called neurotransmitters that the brain releases into the system as a response to the stimulation. When they are released, they increase the breathing and heart rates and also increases the energy in the muscles in readiness for fight or flight.

The body is designed in such a way that it can protect itself from danger and invasions from outside. Fear is felt because of a potential danger that would put the body at risk. The fear feeling is therefore meant to make the whole body ready to take charge of its own security by either fighting back the danger or running away from the danger (Wise, 18).

The feeling of fear is the response of the body to what is registered in the brain. The brain obtain the information about the surroundings from the sensory organs including the eyes, ears, nose, tongue or the skin. When this information reaches the brain and the brain interprets them as indicating danger, the brain initiates activities that lead to the production of the substances that increase the readiness for fighting or running away. Also, the brain can get the information from its own thinking and relation to past experiences indicating danger. For people with health problems in the brain, the stimulation may not be real and fear may come from non-existence sounds, visions or smells (Gardner, 13). This is known as hallucinations.

When someone faces a dangerous situation for the first time, the feeling of fear is highest and the response of the brain is highest. The first choice for the person is to either fight or run away. In cases of repeated stimulation by a similar situation, the response levels are reduced. This is because the brain has stored information on the situation and the person has a clue on what to do. The highest fear is felt when a situation is experienced the first time. Fear can also come from situations from the mind (Gardner, 26). When a person experienced increased fear due to the magnitude of a situation, thinking about the situation later may also bring the feeling of fear.

Fear is a feeling that arises from the stimulation of the brain by an incidence that is perceived by the sensory organs or thought by the brain (Wise, 22). The stimulation makes the brain perceive a dangerous situation and increases the production of substances that will help the person fight the danger or run away from it.

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