The human brain runs on a tight energy budget. Despite making up only 2% of our body weight, it devours around 20% of our ...

Hundreds of cubes of human brain tissue help scientists to chart the energy-making capabilities of various brain regions.

Often compared to a computer, the body's most complex organ operates using a code of electrical and chemical signals. These signals transmit through wires, nodes and networks to process and store ...

and conscious initiation of movements happen elsewhere in the brain; the motor cortex just receives these signals, relaying them directly to muscles. The motor cortex is organized in a way that ...