Let's be completely honest: sometimes your ab routines can become extremely stale and boring. In my opinion, if your workout is boring — and you're dreading it before you begin — the more likely you are to half-ass it or just skip it entirely. I don't like either option.
To prevent just going through the motions or skipping workouts altogether, I created the following five-minute ab workout. In five minutes, you'll strengthen and tone your transverse abdominis (your deep core muscles), your obliques, and your rectus abdominis; working all the layers of your abs is essential to sculpting a six-pack (and don't forget having a clean diet).
Model credit: Morgan Simone