What is an example of a non-observable warning sign for a mental health condition in someone else?

The correct answer is that feeling worthless or hopeless is an example of a non-observable warning sign for a mental health condition in someone else. This choice highlights a subjective experience that an individual may be facing internally. Feelings of worthlessness or hopelessness may not be visible to others, making it difficult for friends or family to detect these emotional struggles without the individual expressing them verbally.

In contrast, the other options represent observable behaviors that can be noticed by others. Changes in eating habits, avoiding friends and family, and expressing anger more frequently are all external actions or patterns that can be perceived directly, making them distinguishable warning signs. Recognizing the difference between observable and non-observable signs is important in understanding how mental health issues can manifest in both apparent and subtle ways.