Which of the following is NOT a mental exercise to avoid stress?

The option stating the need to ignore symptoms or feelings is indeed not a mental exercise conducive to avoiding stress. In fact, ignoring symptoms can lead to an escalation of stress and anxiety. By not addressing feelings and symptoms, individuals may create additional internal conflict, which can exacerbate stress rather than alleviate it.

On the other hand, the other options present valuable strategies for managing stress. Rehearsing potentially stressful situations helps prepare individuals to face challenges, reducing anxiety. Keeping a journal allows for the expression of feelings and can serve as a coping mechanism to process thoughts and emotions. Putting a situation into perspective encourages individuals to view stressors in a balanced way, potentially diminishing their impact. These approaches are proactive and constructive, focusing on engagement with emotions and stressors rather than avoidance.