When we think about fitness, we usually focus on muscles we can see, such as arms, abs, legs, and cardio. But some of the most important parts of the body for long-term health and aging are the ones we almost never train.

In this episode of Superhumanistic, David and Jessica explore four often-overlooked body parts that play a critical role in longevity and everyday function: the brain, the lungs, the wrists, and the toes. From cognitive resilience and breath capacity to balance, grip strength, and injury prevention, these small but mighty areas quietly shape how well we move, think, and age.

If you want to rethink what “working out” really means and how small daily habits can lead to a stronger, more resilient future, this episode is for you.