The human brain is an amazing and adaptable system. It can change and adjust to the world around us.Throughout our lives, our brains produce trillions of special cells called neurons. These neurons are all connected to each other in a very intricate way.The connections between neurons form what we call brain circuits or neural networks. Neurons have two main parts: the cell body and the dendrites, which are like little protein structures.When a neuron becomes active, it sends an electrical signal from its cell body to its dendrites. If this signal is strong enough, it creates an output signal that gets sent to other neurons. It's like an electrical pulse that helps create the connections in our brain circuits.Each brain circuit is made up of different types of neurons, and the ratio of these neurons determines what the circuit does and how it functions.