sleep cycles

Understanding when babies and toddlers begin to recognize the difference between day and night is a crucial milestone in their cognitive development. This fascinating journey begins from birth and continues to evolve throughout their early years, impacting both their sleep patterns and their understanding of the world around them.

The human brain's sagittal cross-section reveals crucial neural structures that form the foundation of our nervous system. This anatomical diagram highlights eight essential components, from the outer cerebral cortex to the vital brain stem, each playing distinct roles in maintaining cognitive function, hormonal balance, and basic life processes.