The "Wisconsin Winter Stack Up" hosted some of the country's fastest cup stackers. Sport stacking is a competition in which competitors stack specially designed cups up and down in set patterns. Speed ...

After weeks perfecting their techniques, speed stackers from throughout New Zealand will pour into Palmerston North this weekend for the national championships. Speed stacking is an individual and ...

Editor's note: This segment was rebroadcast on Sept. 30, 2025. Click here for that audio. In the early 2000s, thousands of U.S. schools had their students race the clock to stack cups in gym class.

Watch the race to stack all the cups first as players compete for the win. Fast hands, quick moves, and plenty of fun make ...

Short chains of amino acids promise big breakthroughs in the gym. We asked the experts whether peptide stacking lives up to the hype. If you’re looking to build muscle and strength, you probably ...