Step-ups may look basic, but they're one of the clearest signs of how strong and efficient your body still is. This single move combines leg power, coordination, and cardiovascular endurance, all the ...

Korir’s moves, choreographed to music, demonstrated his ability to move with precision and rhythm – and watching these videos left us asking two questions. Why is step aerobics important to Korir, who ...

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. Cardio and strength ...

In just five weeks, Julie lost 4.2kg and four inches around her waist, and she’s worked with Jordan ever since to sustainably ...

Strength coach Meg Gallagher ran one mile a day for 30 days. Here’s how it impacted her fitness, step count, speed and mental ...