The human skull is composed of 23 bone structures.
Together with skin and flesh, they form our entire head and facial shape, but due to our chewing habits, muscle tissue impact, and other factors, the gaps between these bones continually move and change.
A change in one region might not be significant, but impacts on multiple areas can lead to major morphological changes in the skull.
Additionally, there is the metabolic proliferation of bones.
For most people, although bone density decreases with age, the lateral thickness continues to increase, so between the ages of twenty and forty, there are noticeable changes in bone appearance.
The main reason I was sure Reinhardt was not himself was due to his youthful photos.
In the photos, the right masseter muscle was significantly more developed than the left, indicating that he habitually chewed on the right side, and might even have a habit of chewing things like chewing gum.
