50 Yr Mature Thumbs -

: Older hands often lose the "plumpness" of younger hands as muscle, fat, and connective tissue volume diminishes, making tendons and bones more visible.

The thumb's primary joint, the or basal joint, is a "saddle joint" that handles up to 13 times the force applied at the fingertips during a pinch. By age 50, several changes often manifest: 50 yr mature thumbs

: Ligaments that stabilize the thumb naturally stretch over time, which can cause the joint to shift out of its precise alignment. : Older hands often lose the "plumpness" of