IslamicWays.net

The arabic word Nasiyha means forelock. If we look into the skull at the front of the head, we will find the prefontal area of thecerebrum. What does physiology tell us about the function of this area? A book entitled, Essentials of Anatomy & Physiology, says about this area: The motivation and the foresight to plan and initiate movements occur in the anterior portion of the frontal lobes, the prefontal area. This is a region of the association cortex... The book also says: In relation to itsinvolvement in motivation, prefrontal area is also thought to be the functional center foraggression...

So, this area of the cerebrum is responsible for planning, motivating, and initiating good and sinful behavior, and is responsible for telling lies and speaking the truth. Thus, it is proper todescribe the front of the head as lying and sinful when someone lies or commits a sin, as theQur’aan said: ...a lying, sinful aasiyyah (front of the head)! Scientists have only discovered these functions of the prefrontal area in the last sixty years, according to Professor Keith Moore.