Blood Basics. Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets. The blood that runs through the veins, arteries, and capillaries is known as whole blood, a mixture of about 55 percent plasma and 45 percent blood cells. About 7 to 8 percent of your total body weight is blood.
Cognitive Dissonance. by Saul McLeod published 2008, updated 2014. refers to a situation involving conflicting attitudes, beliefs or behaviors. This produces a feeling of discomfort leading to an alteration in one of the attitudes, beliefs or behaviors to reduce the discomfort and restore balance etc.or example, when people smoke (behavior) and they know that smoking causes cancer (cognition). Festinger's (1957) cognitive dissonance theory suggests that we have an inner drive to hold all our attitudes and beliefs in harmony and avoid disharmony (or dissonance).
In psychology , cognitive dissonance is the mental stress or discomfort experienced by an individual who holds two or more contradictory beliefs , ideas , or values at the same time ; performs an action that is contradictory to one or more beliefs , ideas , or values ; or is confronted by new information that conflicts with existing beliefs , ideas ...