????? ?????? ????? ??? ??????? B-complex ??? ???? ?????? ????? ??? ????? ????? ???? ???????. ? ????? ??? ??????? ???????? ?????? ?? ????? ????? ??????? B-complex, ?????? ????? ????? ??????. ??? ???????? ???? ??? ??????? ? ??????? ????? ??????? B ?????? ?? ??????????? ??????? ???? ???? ?? ????