Presenters: Reha Kansara and Georgina Pearce; Video Journalist: Jilla Dastmalchi; Producers: Sarah Buckley and Georgina Pearce

The term NDA, or non-disclosure agreement, has been in the news a lot in the last few months, most recently in connection with adult film star Stormy Daniels, who claims she signed one with the US president's lawyer.But what exactly are NDAs, also known as "hush agreements"? And do they exploit women or empower them?The 100 Women team examine what is entailed in signing one, and the extent to which they play a role in society.