Every day as I peruse through the mountain of metrics presented to me on my Garmin watch, I pause to take a look at a particular number: my VO2 max score. And I’m sure I’m not the only runner that ...

If you’re sexually active, regular testing for sexually transmitted diseases (STDs) and infections (STIs) is crucial to protect your health and the health of your partners. While you can get tested at ...

Over the past decade, managers have awakened to the power of analytics. Sophisticated computers and software have given companies access to immense troves of data: According to one estimate, ...

Getting the most out of A/B and other controlled tests by Ron Kohavi and Stefan Thomke In 2012 a Microsoft employee working on Bing had an idea about changing the way the search engine displayed ad ...

Editor’s Note, February 2, 2026: New year, new list. We’ve given this guide a refresh. The Adidas Adizero Evo SL still reigns as our Best Overall—for now. The Under Armour Sonic 7, our Best Value ...