why hunger strike is effective?

How did the hunger strike end?
Liam McCloskey ended his strike on 26 September after his family said they would ask for medical intervention if he became unconscious, and it became clear that the families of the remaining hunger strikers would also intervene to save their lives. The strike was called off at 3:15 pm on 3 October.
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More questions like: How did the hunger strike end?
What is the longest hunger strike?
Having refused food and water for more than 500 weeks (she was nasally force feed in jail), she has been called "the world's longest hunger striker".
Full answer in: en.wikipedia.org
What suffragette went on hunger strike?
The Museum of London holds the medal awarded to the suffragette leader Mrs Emmeline Pankhurst who went on hunger strike during a two-month prison sentence in 1912 for throwing a stone at a window of 10 Downing Street.
Full answer in: en.wikipedia.org