The brain contains approximately how many billion neurons?

The brain contains approximately 100 billion neurons, making it a central hub for processing information in the body. Neurons are the primary cells responsible for transmitting signals and facilitating communication within the nervous system. This number underscores the complexity and capability of the human brain, which is involved in various functions such as thought, memory, and coordination of bodily movements. The statistic reflects extensive research in neuroscience that has consistently highlighted the vast network of neurons and their significance in neural connectivity and overall cognitive function. Understanding this number helps to appreciate the intricate design and function of the brain in both health and disease.