Dr. Natalia Andrianova, Internal Medicine Specialist and Liposomal Vitamins Consultant, announced that the deficiency of some vitamins negatively affects brain functioning.   In an interview with Gazeta.Ru, the specialist notes that vitamins of the В group, for example, are essential for supporting brain function. It contributes to energy metabolism, and without it nerve cells are exhausted and can die later. Its deficiency also contributes to the development of neurological diseases, poor memory and deterioration of intellectual abilities. And she adds, as for the low level of vitamin B9 (folic acid) in the blood, it causes brain function disorder and increases…