This blogpost contains affiliate links. Please see disclaimer Did you know that back in the days some women used to apply radioactive powder to their cheeks? Starting in the 20s, before the negative side effects were discovered, so called “gentle radiation” was considered a natural way to strengthen health and enhance beauty. The radiation in the powder lead to increased blood flow where applied and so provided the much coveted natural flush.     The long term effects of course were horrible. And while we today shake our heads in disbelief when reading things like…