If a Tendon Raises Up When You Touch Your Pinky to Your Thumb, Here’s What It Could Mean

As humans and ground-dwelling apes transitioned to life on the ground, the reliance on this muscle and its corresponding tendon diminished. Consequently, nature, in its gradual and patient process of evolution, began to phase out this vestigial structure. Yet, the march of evolution is slow, and the majority of us still carry the imprint of our primate ancestry in the form of this seemingly superfluous tendon.

To determine if you possess this evolutionary remnant, perform a simple test: place your forearm on a flat surface with your palm facing upward. Gently touch your pinky finger to your thumb and lift your hand slightly. If you notice a prominent raised band in the middle of your wrist, congratulations! You are part of the majority who still retain this vestige of our arboreal past.