Lately I've been thinking a lot about how much we, as humans, know about our bodies. It's amazing, really. I mean, think about it: we have decoded the human freakin' genome, people. It doesn't get more detailed than that. And then again, we know so little about how it all works together. At the genomic level, why do some genes misfire, causing tragic genetic disorders? At the cellular level, why do some cells turn on our own bodies? Why do certain cancers start and grow and spread? Why do some treatments work for some people? And why do the same... More »