This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. “Right to the core,” “core values,” and “hardcore.” These little idioms highlight just how vital the concept of “core” is in our lives ...

“Strength training is every runner’s secret weapon!” says Lindsey Clayton, senior instructor at Barry’s in New York City and co-founder of the Brave Body Project. “A balanced strength-training routine ...

Looking for a new fitness routine this January? Start here. Credit...Janelle Jones for The New York Times Supported by By Erik Vance Each week this January, the Well team will suggest a program of ...