The reason for hair loss in Males is rather known as Male Pattern Baldness including the Male Pattern Baldness and other causes of baldness, like Dandruff, Alopecia Areata, and Nutritional Deficiencies none are related to lack of blood supply to the area, and then how is it possible, that only males show lack of blood supply to scalp not females as they seldom show baldness, this indicate that baldness is due to male sex hormone Testosterone which is not present in a female body, and thus they don’t show Baldness. The Blood Supply theory is just a common man myth, its not true neither has any scientific evidence or proof.
The hair at the donor area are genetically different from hair of the front and the vertex, thus when transplanted to those places they survive there as they are Testosterone resistant, this is the scientific basis of a transplant, . And this is universal.
Another myth is does shaving of the Scalp wii help your hair and don’t let them fall————–Answer is NO.