Description Why is bonding with mom so crucial during a baby's first three years? 120 brain development play activities tailored to babies' growth from 0 to 36 months "120 Brain-Boosting Baby Play Activities" is a brain development parenting guide organized into 6 stages by age, featuring a total of 120 play activities. These diverse activities evenly nurture four key areas of development—sensory/cognitive, social-emotional, physical/motor, and communication—all through joyful interaction between mother and baby. The authors are members of the 'Brain Development Infant Play Research Team,' a group of experts in early childhood education, brain science, and pediatric medicine. Since 2010, the team has been conducting brain-based convergence research aimed at improving infant care environments, supported by the Social Science Korea (SSK) research program of the National Research Foundation of Korea. Their research confirmed that play-based interaction with mothers has a significant impact on babies' secure attachment formation and brain development. They found that one of the most critical factors for a baby's brain development is growing up with emotional stability, built through joyful daily bonding with mom. Filled with play ideas using everyday materials, this book is a practical parenting guide that teaches moms, dads, grandmothers, and grandfathers how to communicate and play joyfully with their babies in meaningful ways. None of the activities require special equipment—anyone can follow along using common household items. Each activity comes with a clear list of materials needed, step-by-step instructions, and helpful information about its benefits and developmental relevance. In particular, the play instructions include suggested dialogue and illustrations to guide parent-baby interaction, ensuring the full benefits of each activity are achieved.