2014-08-16: Roundup herbicide problems, Medicare and hospital visits, Screening for prostate cancer

Summary: Research reveals birth defects and other dangers of glyphosphate herbicide; New recommendations suggest that PSA is not a good cancer screening test; Laparoscopic gallbladder surgery is a common and fairly safe procedure; A strange story linking increased Roundup use by wheat farmers as a consequence of fracking for oil and gas; The issue of "observation hospital stay" as compared to full admission; More discussion about observation hospital stay and Medicare billing; Alternatives to PSA for prostate cancer screening; Does a healthy 57 year old have to get all the tests my doctor recommends? Hydrocodone use for genuine pain does rarely leads to addiction; What is the significance of low ferritin level? Testing for specific microRNAs offers quicker detection of heart failure