Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

When the gun goes off at the start line of a marathon, you might feel tempted to take off at a near sprint. But that’s a big mistake. You want to start your marathon at an easy pace so you can ...

Plus, exactly how to get results from whatever activity you love to do.

Most people underestimate treadmill walking. These 7 workouts improve heart health after 40 without running or joint strain.

Eating fewer calories isn't the only way to lose weight. Bodyweight exercises like squats, push-ups, and lunges can be a great addition to ignite fat loss.

HIIT can help improve speed and power, but longer, steadier workouts that you can do regularly, like swimming and rowing, are ...

Swimming is a low-impact workout that also targets multiple muscle groups. “In just 30 minutes of swimming, an average person ...