Von Mises stress model “With half opposite force rear” (image scaled 35%) vs. scalp overview of a typical baldness pattern vs. anastomotic network of the scalp arteries. Horizontal lines are added to section up into zones which are used for model validation. Circles indicate areas with scalp arteries with potential poor flow capacity based on the image of the anastomotic network of the scalp arteries, and these circles are overlaid the Von Mises stress model and the real example.