By: Rachael Rettner, Senior Writer
Published: 05/16/2014 10:29 AM EDT on LiveScience
The technology in fitness trackers is changing the way rese...
Read Whole Story
It's probably the weightiest question in the gym world. What's more effective? Lifting light weight and doing high reps or lifting heavy weight and doing low reps?
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements. Learn more.