We've come a long way since the Hippocratic Oath Doctors no longer take vows to Apollo And call the gods and goddesses to witness "Please let me do less harm than most physicians!" Medicine was easier under polytheism One god made you sick, Another relieved symptoms Balance those humours, It'll take away your fever Today's version is the Declaration of Geneva Which is good, but it needs one addition "I will not ignore findings that are scientific If that knowledge could possibly make a difference In treating, understanding, or preventing my patient's sickness" Evidence-based medicine has been a panacea Antibiotics, vaccines and anaesthesia Despite their modern hypocritical critics Who never saw somebody die from gangrene, syphilis Or any other dangerous condition such as measles Treatments need to be tested against placebos And now for the next phase in medicine's evolution A Darwinian revolution If they reject evolution Because of the Old Testament Give 'em last year's flu shot Nothin' but old medicine Change over time is comin' There's no place to hide Evolution might save your life Tonight The evolutionary view is not an alternate It's just another layer added to the proximate It doesn't change what's proven to work But it does suggest ways of improvin' our search For truth, and makin' a body's imperfections clear Not a machine design by an engineer Built by genes hell-bent on reproduction And that simple fact predicts dysfunction The organs in your body are all adapted for somethin' The stomach for digestion, the heart for pumpin' And every disease has an evolutionary cause Which is not what medical students are taught Why not? Because of freedom of religion Superseding freedom from religion? Medical school curriculum revision Just add one more category of description Teach the etiology and epidemiology And pathophysiology, and treatment policy And differential diagnosis courses And one more: evolutionary origins If they reject evolution Because of the Old Testament Give 'em last year's flu shot Nothin' but old medicine Change over time is comin' There's no place to hide Evolution might save your life Tonight So when I go to the doctor with a throat full of Streptococcal villains and get some amoxicillin And she tells me to keep on poppin' pills until The bottle's gone regardless of how I'm feelin' I want to know exactly what that's a precaution against And how drug resistance is an evolutionary event And how the threat of rheumatic fever is driven By an arms race, 'Cause strep is a molecular mimic Impersonating cellular signals, Which triggers Antibodies that attack my own body's tissues I want the doctor to understand the underlying issues And tell me that every tool in the tool box get used In our quest to improve prevention and treatment So it's not just me, I want the species beaten So what if they multiply 200, 000 times For every generation of ours, We've got science! And science includes an evolutionary branch It's a place to hang a million arbitrary facts And synthesize into a unifying vision The chaotic enterprise known as medicine If they reject evolution Because of the Old Testament Give 'em last year's flu shot Nothin' but old medicine Change over time is comin' There's no place to hide Evolution might save your life Tonight