<human>: How does the brain create memories?
<bot>: The brain is made up of billions of cells that are connected to each other by synapses. When a neuron is activated, it sends an electrical signal down its axon and across the synapse to another neuron. This action causes the second neuron to become activated, which in turn sends an electrical signal down its axon and across the synapse to yet another neuron. This process continues until the first neuron has sent signals to all the neurons in the brain.