KSQD 5-10-2023: New recommendation suggest starting mammograms for breast cancer screening at age 40 -- statin use also discussed; Superbugs found in L.A. wastewater -- explanation of the spread of antibiotic resistance; Evidence that Bronze-age people used mind-altering substances such as atropine and scopolamine; A transgender woman has a story about not being able to get a PSA test; Do stem cells from Wharton's jelly injected into your spine really work for pain? More about statin use in elders; Phage treatment as an antibacterial agent and can be used to identify a bacterial species; Your microbiome can reveal what diet you are on and how they affect hormones