An American doctor measured one fingernail for 35 years, his scientific experiment won an Ig Nobel but in literature

For thirty-five years, Dr. William B. Bean kept a detailed account of his left thumbnail's growth. His self-study unveiled striking patterns related to aging and health, including a consistent reduction in nail growth rate and the complete cessation during illness. This unique research approach brought Dr. Bean the 2025 Ig Nobel Prize in Literature, highlighting the intersection of personal observation and scientific inquiry in a most unusual way.

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