When it comes to abdominal exercises, crunches are probably the first that come to mind. But are they doing more harm than good? We've got the answer.
Which Abs Exercise Is Best — Sit-Ups vs. Crunches?
Are Crunches Actually a Good Way to Get Abs? - InsideHook
Leah Keller's Instagram, Twitter & Facebook on IDCrawl
Are Sit-Ups & Crunches Bad for the Spine?
Here's why I stopped doing crunches and sit-ups – and which abs
Crunches Exercise: How To Do a Crunch For the Best Ab Workout
Crunches: Are crunches bad for your back?
How to Do Crunches Correctly — Plus 14 Variations
How to Do Crunches Safely and Other Exercise Options for Toned Abs