A trainer reveals how a perfectly held 90-second plank can flatten your stomach fast after 40—no crunches required.

This makes bodyweight workouts a great option for beginners, or anyone who’s taken a break from working out and wants to get ...

With the help of a couple walking enthusiasts, the team at Peak devised a 7-day walking challenge that anyone can use.

Throughout the 12-week challenge, I was so focused on and excited about my goals and progress, I didn’t have time to dwell on negative self-talk. It paid off: I placed in the top 50 of participants. I ...