Why does newborn brain weight increases?

Answer 1

Brains, and other body parts, develop as we age. We learn more, adapt, and so on. Our brains gain much knowledge, and thus grow.

Answer 2

The increase in a newborn's brain weight is mainly due to rapid growth and development of brain cells and connections during the early stages of life. As the baby experiences new stimuli and learns new skills, the brain forms new neural connections and increases in mass. This growth is crucial for the baby's cognitive development and ability to learn and adapt to their environment.