The human brain is said to be the most complex biological structure ever to have existed. And while science doesn’t fully understand the brain yet, researchers in the expanding field of neuroscience have been making progress.
Neuroscientists have made substantial inroads towards mapping the complex functions of the brain’s 85 billion or so neurons and the 100 trillion connections between them. (To put this astronomical number into perspective, there are upwards of 400 billion stars in the Milky Way galaxy.)
