Are you ready to turn sweat into cash? In this high-stakes fitness challenge, you have one goal—burn 1,000 calories before time runs out! If you succeed, you’ll walk away with a $1,000 reward. But it ...

Burn more, weigh less. Sounds simple, right? Not exactly. A new study is challenging conventional wisdom about exercise and weight loss, suggesting your workout may not burn as many calories as you ...

Most of us know the feeling of lacing up our running shoes, dragging ourselves to the gym or diving into a pool of water and wondering how much bang we're really getting for our buck. Whether aiming ...

Weight loss can happen when you lead a balanced lifestyle that includes adjusting things such as diet, exercise, and lifestyle habits. It also depends on something called a calorie deficit. Calorie ...

From sprints to incline walking, the data shows which workouts burned the most fat – and it's good news for runners ...

Though bodybuilders and runners usually take different approaches towards physical fitness, each gets something positive out of their efforts. "The most important exercise for each person is the ...

Back in 2012, an evolutionary anthropologist named Herman Pontzer published some baffling data from his time among the Hadza, a group of hunter-gatherers in Tanzania. Using a sophisticated technique ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. One of the benefits of ...