Caution: Content Warnings Do Not Reduce Distress, Study Shows
www.psychologicalscience.org
Advocates for the use of trigger warnings suggest that they can help people avoid or emotionally prepare people for encountering content related to a past trauma. But research indicates the warnings only heighten anticipatory anxiety.

Advocates for the use of trigger warnings suggest that they can help people avoid or emotionally prepare for encountering content related to a past trauma. But trigger warnings may not fulfill either of these functions, according to an analysis published in Clinical Psychological Science.

https://journals.sagepub.com/doi/10.1177/21677026231186625