Danger signs are indicators that something harmful or risky may be present. These can include physical signs, such as smoke or unusual odors, which may suggest a fire or gas leak. Additionally, changes in behavior, like aggression or withdrawal, can signal emotional distress or potential violence. In the context of health, danger signs might refer to symptoms that require immediate medical attention, such as severe chest pain or difficulty breathing. Recognizing these signs early can be crucial for safety and well-being, allowing individuals to take appropriate action or seek help when necessary.