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According to Martha Lincoln, a medical and cultural anthropologist, the handshake is deeply embedded in Western social culture. To Americans, it symbolizes more than just a greeting; it is a communal act that signifies trust, openness, and mutual respect. Studies have shown that handshakes influence perceptions of trustworthiness, impact business outcomes, and even shape teacher-student dynamics. This longstanding tradition isn't merely about physical contact—it's a social norm that fosters connection and signals a willingness to engage.