High-Intensity Interval Training (HIIT) has become one of the most effective fitness strategies in the United States for ...

If you ask people why they do not exercise as much as they should, the most common answer is lack of time. The World Health Organisation recommends 75 minutes of high-intensity exercise, or 150 ...

We all grow older. There is nothing we can do about that, but the quality of those years is within our control, as recent research has shown. After receiving a doctor’s approval to begin any exercise ...

The holidays are here! That means spending time with loved ones, last-minute work deadlines and shopping for presents takes over our to-do list — pushing workouts to the back-burner. Let’s be honest: ...

Lack of time is often the main reason people don't exercise regularly. But a type of interval workout recently popularized by ...

Every so often, a new type of workout seemingly takes the fitness world by storm. The latest in this long line of buzzy fitness fads: the Norwegian 4x4 workout, a high-intensity interval training ...

As women enter their 40s and beyond, hormonal changes can make it harder to build muscle, maintain energy, and manage body composition. High-intensity training is one of the most powerful tools for ...

A HIIT workout can be tricky to define because, at its core, it just means a string of exercises that gets your heart racing, providing a cardio boost to what would otherwise be a serviceable, but ...

Forbes contributors publish independent expert analyses and insights. AI researcher working with the UN and others to drive social change. Oct 20, 2025, 05:19am EDT A humorous animated brain character ...

No excuses, no shortcuts. This is how intense garage workouts are redefining strength, endurance, and real-world fitness.