9 Ways to Tell If You’re Exercising Enough

What it means: You're likely working at a steady state and need to add some interval training to your routine, says Minardi. "You should break a sweat when you train and should see [or feel] a spike in your heart rate," he says.

How to adjust: Get your heart pumping more often. For instance, between yoga poses or a set of squats, drop and do 10 push-ups or 20 mountain climbers to rev your heart rate.