The Secret Language of Cells, John LieffYour cells are talking about you. Right now, both your inner and outer worlds are abuzz with chatter among living cells of every possible kindfrom those in your body and brain to those in the environment around you. From electrical alerts to chemical codes, the greatest secret of modern biology, hiding in plain sight, is that all of life's activity boils down to one thing: conversation. While cells are commonly considered the building block of living