I've frequently discussed the stories of teenagers with cancer who either refuse chemotherapy or whose parents refuse chemotherapy for them. The case of Cassandra Callender is the same, yet different, from many of these unfortunate and sad sagas in that she was older when diagnosed with cancer and that she realized her mistake. I can now only hope that it's not too...
A study of On Guard™, a mixture of essential oils, showed that it reduced the infectivity of influenza virus in dog kidney cells in the lab; but that's irrelevant to the question of whether the product has any clinical effect in humans.
Legally licensed, unbridled subluxation-based chiropractors who offer unproven treatment for a broad scope of health problems endanger public health, stigmatize appropriate use of spinal manipulation, and deter development of chiropractic as a legitimate back-care specialty.
Our ability to develop new drugs is fast outstripping our ability to pay for them; some are exorbitantly expensive and not very effective. Funds are limited, and as a society we need to have a serious discussion about how they are to be allocated.