Every day brings a new physical challenge, and that unpredictability is exactly what’s reshaping modern fitness routines across the United States.

From lakes at sunrise to high-tech indoor machines, rowing is redefining how Americans train smarter, not longer.

Before diving into the details, it’s important to remember that strength training and high-intensity cardio are not mutually exclusive, says Maricris Lapaix, CPT, a certified personal trainer at Centr ...

High intensity interval training could be the secret to staying young. — -- Exercising by doing interval training, not weight lifting, could be the secret to staying young, according to a new ...

Here’s your excuse not to work out today. A single session of high-intensity exercise can disturb the body’s main stress hormone, leading to less activity after the workout, a lower body temperature, ...

For your speed workout, try a fartlek run/walk: After a walking or easy running warmup, run hard for 30 seconds or as long as ...

These workouts also burn calories and improve fitness. One of Porcari’s studies found that the average boot-camper expended ...

This guide helps you figure out how to squeeze strength workouts between all those miles.

It’s a type of high-intensity interval training workout created by Japanese scientist Izumi Tabata. Like other forms of HIIT, it involves periods of exercising intensely with an elevated heart rate, ...

When country singer Russell Dickerson became a father in September, he vowed he wouldn’t succumb to dad bod. With less time for the gym, he embraced high-intensity workouts and found ways to include ...

Kevin Hart transformed his fitness with sprinting, HIIT, and full-body exercises like cleans and presses to keep fit in his ...

A single session of high-intensity exercise can disturb the body's main stress hormone, leading to less activity after the workout, a lower body temperature, and weight gain, a new study of mice finds ...