Browse Sophie Gray's popular Instagram account (@WayofGray) and you'll notice two things right off the bat: her big, silly smile that makes you feel like she's already your BFF and her constant encouragement towards self-love and healthy living. As part of that, Gray, a registered holistic nutritionist and personal trainer, stresses all things in moderation — even clean eating and exercise.
But for a quick burst of energy and feel-good endorphins, she recommends circuits, such as this combination of planks and crunches she came in to demo for us, to strengthen and tighten your core. Do each exercise for one minute, and then move on to the next exercise. Repeat the circuit twice.