A personal trainer outlines his best seven-day core strength challenge for a flatter stomach and tighter midsection.

“Most of the time 10 to 12 reps will be performed in 30 seconds making it easier to stay on track. This will become second nature once it becomes a healthy habit,” North says. “Note: Focus on ...

W hether you’re already blitzing your way through the week 1 moves or you’ve just arrived, welcome to GH and Davina McCall ’s 5-Minute Move-It Challenge! This October, we’re inviting everyone to join ...