The document discusses the foundations of communication. It defines communication as the exchange of information between individuals through a common system of symbols or behaviors. Effective communication is important to establish relationships, persuade others, develop understanding, and solve problems. There are several elements in the communication process, including a source, message, channel, receiver, interference, and feedback. Barriers to effective communication can include defense mechanisms, health issues that impair communication, and medical terminology. Clear, concise verbal messages and interpreting nonverbal cues are important for effective communication. Active listening is a key part of effective communication in healthcare. Conveying a positive attitude without bias is also important for quality patient care.