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Bad Blood

by John Carreyrou · 2025 · 339 pages

4.65· 295 ratings

Businessbook summaryCarreyrou
Key Insights · 8 min

Bad Blood

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Ambitious Vision, Questionable Execution

Elizabeth Holmes , a Stanford dropout, envisions a groundbreaking shift in healthcare through her company, Theranos. Her goal is to develop a device capable of conducting comprehensive blood tests from a single drop of blood, promising faster, cheaper, and more accessible diagnostics. Despite the technology being far from ready, Elizabeth 's charisma and determination attract significant attention and investment. She surrounds herself with influential figures, including former Secretary of State George Shultz , who becomes a staunch supporter. However, behind the scenes, the technology struggl

Lesson 1: Ambitious Vision, Questionable Execution

This principle from Bad Blood is backed by John Carreyrou's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

Lesson 2: The Rise of Theranos

This principle from Bad Blood is backed by John Carreyrou's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

Lesson 3: Secrets and Deceptions Unveiled

This principle from Bad Blood is backed by John Carreyrou's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

How to Apply Bad Blood's Lessons

The real value of Bad Blood lies in its applicability. After reading, the most important step is identifying which of John Carreyrou's principles speak most directly to your current situation.

Consider keeping a journal while reading — noting where the ideas challenge your current approach and where they confirm what you already suspected. The friction of your own resistance often points to the most important insights.

Key Quote

"Ambitious Vision, Questionable Execution" — John Carreyrou, Bad Blood

About the Author

John Carreyrou is the author of Bad Blood. The book reflects years of research, observation, and synthesis of evidence from multiple disciplines.

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