Emotions play a crucial role in impacting attentional capacity, decision making, and relationships. Emotions are intertwined with cognitive processes, influencing our ability to focus and concentrate. They can significantly affect decision-making, as shown in a study where teachers' moods led to a one to two grade difference in paper evaluations. Even though emotions have a clear impact on perception, individuals tend to deny this influence to maintain a sense of control and free will. Emotions also serve as signals to approach or avoid in relationships, demonstrated through facial expressions and interactions with others.