Regular massage of the scalp improves blood circulation. It is due to this improved circulation that more of the vital nutrients required for growth are availed to the hair follicles. In addition massage especially when accompanied by skin scrubbing removes dead skin and unclogs any pores and hair follicles that may have been blocked by the dead cells. Avoid applying unnecessary pressure on the scalp and the hair roots. Try to brush your hair gently as overly vigorous brushing not only damages the hair but the excessive tugging could damage the hair roots.When oil dirt dead skin and other residue clog your hair follicles growth can be inhibited. That said and more so for women excessive washing of the hair can deplete the scalp of natural oils that keep both the hair and the scalp healthy. In a general sense you are advised to you wash your hair at least thrice a week.