Scientists don’t know for sure. Since chemotherapy and radiation kill cells that divide often, stem cells may be less vulnerable because they rarely divide. Some scientists believe cancer stem cells may have genetic mutations that make them resistant to damage from chemotherapy or radiation, or cancer stem cells may be able to repair DNA damage more rapidly than normal cells.
^ Vogl, S; Picker, P; Mihaly-Bison, J; Fakhrudin, N; Atanasov, AG; Heiss, EH; Wawrosch, C; Reznicek, G; Dirsch, VM; Saukel, J; Kopp, B (2013). "Ethnopharmacological in vitro studies on Austria's folk medicine - An unexplored lore in vitro anti-inflammatory activities of 71 Austrian traditional herbal drugs". J Ethnopharmacol. 149 (3): 750–71. doi:10.1016/j.jep.2013.06.007. PMC 3791396. PMID 23770053.
The Gerson diet is a cleansing diet. It is based on the premise that a person who has cancer has very high levels of toxins in the body and these need to be removed in order for the cancer to be healed. It uses certain combinations of fruit and vegetable juices, and frequent enemas. People using the Gerson diet will consume specially formulated vegetarian meals, large amounts of fruit and vegetable juice, and 4 or more coffee enemas per day. It originally included daily consumption of raw liver juice, which has been recently removed from the diet. Some alternative healthcare providers believe that the original success of this therapy was linked to the inclusion of raw liver, and it should be included to obtain the full benefit of the therapy.
You don’t usually think of pineapple as a cough remedy, but that’s probably because you’ve never heard of bromelain. There’s evidence to suggest that bromelain — an enzyme found only in the stem and fruit of pineapples — can help suppress coughs as well as loosen the mucus in your throat. To enjoy the most benefits of pineapple and bromelain, eat a slice of pineapple or drink 3.5 ounces of fresh pineapple juice three times a day.