Consist of several intertwining loops among the basal ganglia nuclei & thalamic nuclei Striatum (caudate & putamen) is receiver of input to basal ganglia Frontal cortex especially premotor area
Each strand of hair on the human body is at its own stage of development. Once the cycle is complete, it restarts and a new strand of hair begins to form. The rate or speed of hair growth is about 1.25 centimetres or 0.5 inches per month, or about 15 centimetres or 6 inches per year.
Overlapping is when relaxer is applied past the new growth line, which causes overprocessing and ultimately hair loss. Keep in mind that the average hair strand is only growing new hair at a rate of about one-half inch every four weeks. This new hair is your new growth and is the only hair that should be relaxed. So, have your hair relaxed on an as needed basis, no sooner than ten weeks. By then you should have about one inch of new growth which creates that visible line of difference. And remember a relaxer should be used to manage kinky hair.