For decades, scientists have tried to understand what separates people capable of extraordinary endurance from everyone else. Is it genetics? VO₂ max? Pain tolerance? Mental toughness? Dean Karnazes has spent more than 30 years giving them a remarkable case study. He’s run 50 marathons in 50 states in 50 consecutive days, crossed Death Valley in
The Garmin CIRQA is the brand’s first display-free smart band, designed to continuously track your health, sleep, recovery, and activity without the distractions of an on-wrist screen. And on paper, that’s a very enticing proposition. As an experienced fitness product reviewer, I can confidently say that Garmin makes some of the best fitness wearables. Its
Fitbit’s Charge series has long been the Goldilocks of the brand’s fitness trackers — not quite a smartwatch, but far more capable than a basic step counter. With the Charge 6 (released in 2023), Fitbit brings basic smarts into a just-big-enough package, offering features like GPS, Google Wallet, and on-wrist music control alongside its best-in-class
The latest special-edition of Google’s Fitbit Air is inspired by the Pokémon Sleep game, with a “Sleepy Blue” band emblazoned with a snoozing Pikachu. It’s not exactly Snorlax blue, but matches the classic blue and gold of a Pokémon card pretty closely. The special-edition is available to preorder now for $129 and starts shipping September
What do the terms Zone 2 and VO2 max have in common? According to the celebrity personal trainer Harley Pasternak, they are irrelevant to the majority of people, the health-conscious among us included. If your goal is to be healthy physically and mentally, you are far better off focusing on a simple metric, such as
This story is based on an interview with Mary Roberts, 33, from Miami. She is about to launch a consultancy. The interview has been edited for length and clarity. I was on the chubbier side growing up. However, as soon as I started competitive sports like basketball in high school, I got into good shape.