The human brain is the most complex mass of protoplasm on earth — perhaps even in our galaxy. A product of heredity and environment, operative for many tens of millions of years, this three-pound collection of cells is still of virtually unknown potential; yet what a history of achievement and what incredible promise for the future!... No other group of cells sends travelers to the moon and soon beyond, reengineers genes, produces a Mozart sonata or a Turner Landscape. But what’s the most significant achievement of this organ small enough to be held in our hands? I'd say the ability of the brain to change in response to cultural diversity — with measurable chemical and structural changes. Yea... our brains literally add nerve cell braches in response to training and learning, no matter what our age. Conversely, the brain is learning to reshape the environment in which we live and will both benefit from and suffer the consequences as it does. 📸: Arnold Scheibel, MD