A Facebook moderator has for the first time given evidence revealing the mental toll of the job, to a parliamentary committee, APA reports citing BBC.
The Irish parliament heard how moderators viewed graphic content up to eight hours a day.
Law firm Foxglove and the Communication Workers Union, representing moderators, called for better psychological support and freedom to speak out.
Facebook said it provides 24 hours support to staff.
Isabella Plunkett has worked as a Facebook content moderator for just over two years, and still works there.
Her job is to review posts on the platform - which can contain graphic violence, exploitation, extremism, abuse and suicide.
The 26-year-old says she could not speak to her friends or family about the things she saw at work due to a non-disclosure agreement (NDA) which she had signed at the beginning of her contract.
Members of Ireland's Joint Committee on Enterprise, Trade and Employment, commended her bravery in speaking out.