Trigger warnings: These should be used to prevent exposing someone with past trauma, to something that might insight a physical and/pr mental reaction e.g., sexual violence.

Do trigger warnings help or harm?

Summary: New research suggests that trigger warnings have little or no benefit in cushioning the blow of potentially disturbing content and, in some cases, may make things worse. For some, traumatic events leave deep psychological scars that can resurface many years later as renewed emotional pain or unwanted memories.

Are trigger warnings legally required?

Consider the easiest case: Sometimes teachers have a legal obligation to give trigger warnings, and ethically it is the right thing to honor that obligation. ... If a student requires trigger warnings, then the ADA entitles that student to receive them, and it is right to do so.