We talk a lot about connecting with nature. Touching the earth. But that’s not the main reason your balance is slipping when you hit uneven terrain.

It’s biology.

Walking on soft, irregular surfaces like grass or sand activates a system you mostly ignore until you trip: proprioception. This is your body’s internal GPS. It tells you, subconsciously, where every joint and limb sits in space without you having to look down.

“If a surface is suddenly slanted… it would activate muscles in a different方式 so that you don’t fall.” — Claire Morrow

Morrow, a physical therapist, puts it bluntly. Your body notices the tilt. It adjusts the muscles. You don’t fall right over. Simple. Automatic. Or it should be.

The problem? It decays.

As we age—or worse, after a nasty injury—this internal awareness fades. It’s a feedback loop. Use it or lose it. Sprain your ankle? You lose the ligament stability and the sensory data that prevents you from rolling it again. Morrow points out that you might just keep reinjuring yourself because the warning system is offline.

Training it doesn’t require a Sherpa or a summit.

Leave the paved sidewalk behind. Sidewalks are boring. They’re predictable. They do nothing for your stability. Hit the dirt.

Patrick Maloney, a lead athletic trainer at the Tulane Institute of Sports Medicine, sees the stakes clearly. “The danger of that impaired proprioception is… you don’t have the quickness.”

You end up in a bad spot. You try to catch yourself. You fail. Falls happen. A 2017 study confirmed it: older adults sway more because they lose this reliable sense of position.

So, what do you do?

Start easy. Pressed dirt. Then grass. Then sand. Barefoot? Even better, if you don’t mind the grit. The uneven ground forces your body to react to the unexpected. It’s a challenge.

Nervous about balancing? Use hiking poles. You get the foot-position testing plus the safety net of extra support. Morrow says it works.

Take a test. Stand on one leg. Count to ten.

If you can’t, you might have a gap in your stability network. A physical therapist can fix that with targeted exercises. Also, pay attention to your gait. Are you walking slower than before? Do you need to hold the railing? That’s data. Listen to it.

Next time you’re out walking, step off the curb. Walk on the soft grass. It’s messy. It’s unstructured. Your body will thank you for it, eventually.