Neurons communicate in a variety of ways, but the most common way is by passing chemicals (called neurotransmitters) between two neurons. The first neuron releases these neurotransmitters into the space between two neurons (the synapse), where they float across and then interact with the second neuron. This causes this neuron to generate an electrical signal which will travel to its own synapses where it contacts other neurons, and it too will release neurotransmitter. While most neurons communicate this way, some neurons touch each other and pass electrical signals directly. Some neurons also release hormones into the blood which travel through the whole body and affect other cells.