Curious about this connection, scientists studied the bone density of young female track athletes. Even though these athletes focused solely on running, their leg bones were strong—as expected—but surprisingly, their arm bones were also dense and healthy, despite little to no upper body training.
The researchers concluded that once the athletes began leg workouts, their entire body responded as if it were exercising. In other words, the moment you start moving with the mindset of “I’m working out,” your body picks up on that intention and activates systems throughout, delivering benefits beyond the targeted area.
I’ve experienced this myself. When I commit to squats, not only do my thighs get stronger, but my arms also feel more toned. And when I focus on push-ups, my legs seem to gain strength too. It’s similar to how a calm stomach helps clear your mind—and a peaceful mind helps settle your body. The key is simply to begin. Any movement can lead to full-body strength.