Frank Ramsey was a mathematician, philosopher, and economist who was well-known for his contributions to mathematics. Ramsey, unfortunately, had a chronic liver problem and died at the age of 26 after acquiring jaundice following an operation, which was an unpleasant truth.
Yutaka Taniyama
Yutaka Taniyama was a Japanese mathematician who, unfortunately, committed suicide on November 17, 1958, at thirty-three.