The Conversation – Georgia Chronakl
“For hundreds of years, scientists have tried to understand the human brain – known as the most complex organ in the universe. The average human brain contains about 86 billion nerve cells, called neurons. These are the building blocks of your brain. Neurons communicate with each other by sending chemical and electrical signals. Each neuron is connected with other neurons across tiny junctions called “synapses”. Impulses rush along tiny fibres, like electrical wires, from one neuron to the next.” (more)