Histamine is a neurotransmitter produced by pathogenic bacteria in the gut. Normally, histamine is broken down naturally by an enzyme diamine oxidase.
Exploring the theory that these figurines began as a form of self-representation by women. When examined, this proposal becomes so compelling the question is, Why did it take so long to consider the logical possibility that a female point of view was involved?
20 percent of what they had assumed to be just dust or other particles was alive. Earth, it seems, is surrounded by a bubble of bacteria.