When S.R. Ranganathan, born in Siyali (now Sirkazhi) in Mayiladuthurai district in 1892, finished post-graduation and took up teaching of mathematics, he must not have realised that he would be ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA Society committee, and has a ...

A version of this article appeared in the October 2006 issue of Harvard Business Review. Harvard Business Publishing: Copyright ©2026 Harvard Business School ...

Jan. 18, 2026 A long-running Swedish study has followed adults for nearly five decades, uncovering when physical decline truly begins. Fitness and strength start slipping around age 35, then worsen ...

Michael Boyle is an experienced financial professional with more than 10 years working with financial planning, derivatives, equities, fixed income, project management, and analytics. Suzanne is a ...