What is an example of anon-observablewarning sign for a mental health condition in another person?

An example of a non-observable warning sign for a mental health condition in another person could be a sudden change in their communication style. For instance, if someone who typically engages openly and enthusiastically in conversations suddenly becomes vague or unresponsive, this shift might indicate underlying emotional distress or mental health issues. Unlike observable signs such as mood swings or physical changes, shifts in communication can often go unnoticed, making it important for friends and family to pay attention to changes in how someone expresses themselves. Other non-observable signs may include increased social withdrawal or a change in perspective that affects their thoughts and feelings, which can signal deeper issues that may require attention or support.