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

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

These high-intensity barbell movements are redefining functional fitness, athletic performance, and total-body conditioning across elite training programs in the United States.

In 1996, Dr. Izumi Tabata published a groundbreaking study on high-intensity interval training, or HIIT, and its effects on aerobic (VO₂ max) and anaerobic capacity in young, physically active men ...

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 ...

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 ...

For some people trying to lose weight, they might find that they've plateaued and wonder if there is anything they can add to their workout routine to jumpstart their metabolism. Enjoying a ...

Influencers call sprinting the ultimate fat-burning workout. Experts say it’s more nuanced—but research shows this high-intensity exercise offers surprising benefits for the heart, muscles, and even ...

High-intensity interval training, or HIIT, is a great way to torch calories, boost your metabolism and get a great workout in a shorter amount of time. And if you're a fan of hopping on the treadmill ...

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