Final answer:
Pain, fatigue, and blurry vision can affect a person's ability to listen and send messages effectively.
Step-by-step explanation:
Pain, fatigue, and blurry vision are some factors that can influence a person's ability to listen and/or send messages effectively. When a person is in pain or fatigued, it can be difficult to concentrate and process information effectively. Similarly, blurry vision can hinder a person's ability to accurately see and interpret non-verbal cues, facial expressions, or written messages, which can affect effective communication.
Learn more about Factors influencing effective communication