Stumbling isn’t a mistake—it’s a normal occurrence. The key question isn’t how to prevent the stumble, but what happens in the half-second afterward. Whether someone regains their balance or falls depends on abilities everyone is familiar with: balance, peripheral vision, and body awareness. The problem: No one can objectively assess these skills in themselves. People with poor balance don’t realize it—they unconsciously swerve out of the way, hold onto the railing, and consider this normal. Only measurement reveals what’s missing. And this very moment is the most effective starting point for change there is: People don’t change anything they don’t know is a problem. Ringo Mosch shows how these abilities can be assessed in the workplace, why the results inspire people rather than embarrass them—and here’s the good news: the senses and how the brain processes them can be trained well into old age.