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Chemical Communication Among Humans

Chemical Communication Among Humans

As earlier stated, the subject of pheromones in human beings has been hotly debated in scientific circles for many years. Though the full significance of human pheromones is yet to be determined, most scientists agree that some chemical communication among human beings does exist. Over the past two decades, this hypothesis has gained increasing credibility, as new evidence continues to be slowly uncovered. In early 1991, a team of scientists reported a possible attractant that guides human sperm to the egg for fertilization. It seems from their research that many of the sperm, en route to the egg, may be swimming up a concentration gradient of pheromone, released by the egg or nearby cells. The researchers obtained samples of the fluid that surrounds the female egg from women undergoing in vitro fertilization procedures. They found that many more sperm swam to this fluid than a control solution, suggesting a chemical signal is responsible for attracting the sperm. Further, a separate group of scientists discovered about twenty different olfactory receptors in sperm tissue. These receptors are the same kind found in the human nose, and were not found in several other types of tissue, studied throughout the body. Unfortunately, the exact

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