Professionally supervised! A brain activity book that will make you fall in love with PHP. Never go senile! 3-year "brain training" diary / 85200 1

●Country of origin: Japan ●Number of items per case: 20 ・A three-year diary supervised by brain scientist Dr. Shinohara Kikunori. ・Stay away from dementia thanks to daily diary entries and brain training for three years. ・Diary writing and brain training stimulate the brain in various ways and create a synergistic effect. Make it a fun daily habit.