It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Porphyria has been suggested as an explanation for the origin of vampire and werewolf legends, based upon a number of superficial similarities between the condition and the folklore. These ideas may have developed from a misunderstanding of the nature of porphyria and concentrate more on the traits from modern vampire and werewolf fiction than on the original folkloric beliefs.