New research published in The Lancet Psychiatry reveals that playing Tetris can help alleviate intrusive memories associated with trauma, a key symptom of PTSD. The study, developed at Uppsala University, involved healthcare workers affected by trauma during the COVID-19 pandemic. The Imagery Competing Task Intervention (ICTI) significantly reduced intrusive memories from 14 per week to 1 per week after four weeks, with 70% of participants free from intrusive memories after six months. The treatment focuses on mental imagery and utilizes Tetris to occupy the brain's visuospatial areas, leading to improvements in overall PTSD symptoms.