TechnologyElizabeth Holmes: The hypnotic tale of the rise and fall of Theranos Theranos founder Elizabeth Holmes built a $10 billion company on the promise of a miracle blood test. But it didn’t work. A new film, The Inventor, follows the fallout Culture
HealthWearing a tie may be restricting blood flow to your brain Tightly-worn ties have been found to impair the brain’s blood supply, prompting one scientist to suggest that it’s time to abandon them altogether News