Mature Thumbs 40 -

: Treat thumb posture with the same importance as back posture. Keeping the thumb in good alignment during tasks minimizes the stress on the basal joint.

Beyond physical health, age 40 is a critical benchmark for general "rules of thumb" in life planning: mature thumbs 40

As you reach 40, the cartilage that cushions the bones in your thumb's basal joint can begin to wear away. This can cause the metacarpal bone to slip slightly out of its joint with the wrist, sometimes visible on an X-ray before you even feel pain. Proper Thumb Maintenance & Care : Treat thumb posture with the same importance