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Hello everyone, today I am going to discuss the Cephalic Index. This is the ratio of length of the head (from front to back) to the width of the head.
C.I. = width / length
A long head (index of 75 or less) is Dolichocephalic.
A medium head (index between 75 and 80) is Mesocephalic.
A short or wide head (index over 80) is Brachycephalic.
You can estimate this by looking at a person's side view (profile). Does their head go back very far? If so, they are probably dolichocephalic (unless they have an unusually broad head as well). Is the head flat at the back, or rounded only slightly? Probably brachycephalic. This is why I always like people to have a profile picture in their classification thread. If they have only a front view, they can not be classified accurately since we don't know what their cephalic index is.
Nordics and Mediterraneans are Dolichocephalic.
Alpines, Baltics and Dinarics are Brachycephalic.
Mixes of Dolichocephalic and Brachycephalic types are usually Mesocephalic.
Nordic, showing dolichocephaly. Notice how the head appears long in the side view, and narrow in the front view.
Alpine, showing brachycephaly. Notice how the head appears relatively short in the side view, and wide in the front view.
I hope this has been helpful.
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