From a psychological perspective, the claim that it is easier to tell the truth is based on the principle of cognitive medicine. Truth is always a meeting of our experiences, memories, and perceptions. When we tell the truth, we are simply conveying information that is no longer known and exists in our minds. No additional mental effort is required to construct or reconcile it with reality. Conversely, lying requires significant cognitive effort. To lie successfully, we must invent a false version of the event, make it believable, and remember it to maintain consistency. We must suppress our true memories and feelings, control our body language, and anticipate how others will react to our lie. All of these processes require significant mental energy and focus. In addition, when we lie, we often experience internal conflict, since lying contradicts our innate sense of morality. Such behavior can lead to feelings of guilt, anxiety, and stress, which further complicate th...
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