Fritz Agency
Published by
Princeton University Press (April 2017)
Current material
Final PDF
Mathematics & Science


How a Mathematical Approach to Life Adds Up to Health, Wealth, and Love

by Fernandez, Oscar E.

What's the best diet for overall health and weight management? How can we change our finances to retire earlier? How can we maximize our chances of finding our soul mate?

Oscar Fernandez shows us that math yields powerful insights into health, wealth, and love. Using only high-school-level math (precalculus with a dash of calculus), Fernandez guides us through several of the surprising results, including simple “all-weather” investment portfolios with great returns, an easy rule of thumb for choosing foods that lowers our risk for developing diabetes (and that helps us lose weight too), and math-backed strategies for retiring earlier and finding our soul mate. Moreover, the important formulas are linked to a dozen free online interactive calculators on Fernandez's website, allowing one to personalize the equations.

Fernandez uses everyday experiences—such as visiting a coffee shop—to provide context for his mathematical insights, making the math discussed more accessible, real-world, and relevant to our daily lives. Every chapter ends with a summary of essential lessons and takeaways, and for advanced math fans, Fernandez includes the mathematical derivations in the appendices.

Oscar E. Fernandez is assistant professor of mathematics at Wellesley College and is the author of Everyday Calculus: Discovering the Hidden Math All Around Us (see page 86). He also writes about mathematics at the Huffington Post and at his website,

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