A recent CME lecture I gave called introducing the podcast, but the real point was that podcast can help bridge the knowledge gap. I busted quite a few medical myths in this lecture but on this podcast I talk about two of them. The first one was how much water do we need to drink? According to a recommendation 1945 we need to get about 2.5 liters of water but what most miss is that 'most of that is found in our food!' O and what about antibiotics for strep throat? The centor criteria might be important to know for board exams but even if totally positive there is only a 50% PPV. HOWEVER, in America we only give antibiotics to prevent rheumatic fever and the CDC doesn't even track rheumatic fever anymore because it is so rare. 1 in a million rare. Yet the anaphylaxis from antibiotics is somewhere around 1 in 2-3 thousand. We are no doubt causing more problems by treating strep throat then we ever do no treating strep throat.