Campaigners have accused Facebook parent Meta of inflicting "potentially lifelong trauma" on hundreds of content moderators in Kenya, after more than 140 were diagnosed with PTSD and other mental health conditions. The diagnoses were made by Dr. Ian Kanyanya, the head of mental health services at Kenyatta National hospital in Kenya's capital Nairobi, and filed with the city's employment and labor relations court on December 4. Content moderators help tech companies weed out disturbing content on their platforms and are routinely managed by third party firms, often in developing countries. For years, critics have voiced concerns about the impact this work can have on moderators' mental well-being. Kanyanya said the moderators he assessed encountered "extremely graphic content on a daily basis which included videos of gruesome murders, self-harm, suicides, attempted suicides, sexual violence, explicit sexual content, child physical and sexual abuse ... just to name a few." Of the 144 content moderators who volunteered to undergo psychological assessments " out of 185 involved in the legal claim " 81% were classed as suffering from "severe" PTSD, according to Kanyanya. The class action grew out of a previous suit launched in 2022 by a former Facebook moderator, which alleged that the employee was unlawfully fired by Samasource Kenya after organizing protests against unfair working conditions.