Apart from this so many details of the life's origin is still a mystery. The high transmission of heat and light by the inner body metal layer and the absorbed temperature pulling on the hemoglobin acts as a power supply to the body cells and it is the cause of our body blood pressure. 

Hike in the heat causes high and low B.P. Brain cells need our balanced B.P. blood temperature forever to its cells. Any variation in any way by the blood makes the cell die immediately. 

There is carbon dust in the cells. Metals are present amidst the carbon dust. These metals give strength to our nerves and muscles. The metals transmit heat from one cell to another. High and low blood pressure is due to the death of cells.

Different brain functions are particularly defined by the DNA cells. Each DNA is different. How the DNA makes different types of brain stuff is a wonder.