Current location - Plastic Surgery and Aesthetics Network - Plastic surgery and medical aesthetics - Why does the cheek sink after pressing your face with your hand?
Why does the cheek sink after pressing your face with your hand?
From a physical point of view, the face has undergone elastic deformation. The hand exerts a force on the face to deform it. (The same is true for kneading sponges)

Elastic deformation refers to the change of relative position between points when a solid is acted by external force. When the external force is removed, the solid returns to its original state, which is called "elastic deformation". (from Baidu entry)