* Jane Austen: Her writing was not significantly affected by illness.
* Jane Eyre: This is the protagonist of Charlotte Brontë's novel, and her illness (tuberculosis) is a key plot point, but not a direct influence on the writing itself.
* Jane Goodall: While her work as a primatologist might be affected by health, there is no known information about how illness impacted her writing.
Please provide more context about the Jane you are referring to so I can give you a more accurate answer.