Science or Fiction
Although officially attributed to strokes, there is strong evidence that Vladimir Lenin suffered from and ultimately died from syphilis. https://www.telegraph.co.uk/news/6406447/Vladimir-Lenin-died-from-syphilis-new-research-claims.html
Winston Churchill was diagnosed as an adult with bipolar disorder. http://www.ibpf.org/blog/winston-churchill-and-mental-illness
While Thomas Edison suffered from several chronic illnesses, the most significant contribution to his death was likely accidental mercury poisoning. https://en.wikipedia.org/wiki/Thomas_Edison
Skeptical Quote of the Week.
“The aim of argument, or of discussion, should not be victory, but progress. … Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.” - Joseph Joubert. https://en.wikipedia.org/wiki/Joseph_Joubert suggested by a listener … Richard Kershaw from South Africa