In research conducted at the Gladstone Institute, the neurologists have uncovered something highly unusual. They identified that changes inside the human brain start occurring years before people start suffering from issues with memory or cognitive decline due to old age. The neurologists have identified the specific molecular chain reaction; this is responsible for such changes. Not only this, but the neurobiologists have also identified a way through which these changes can be reversed.  APOE4 Drives brain shrinking, how a risk gene weakens neurones The main purpose behind this research was to study in great detail how the protein of APOE4 puts its effect on the neurons at different stages of a person's life. The team of neurologists working on this research discovered that APOE4 within neurons results in the overproduction of Nell 2, a protein,  which causes the neuron to physically shrink from its original size. Therefore,  all these act as a direct…