Smelling the difference between young and old

Informative Body Odor

By Edyta Zielinska

Humans can tell the difference between the body smells of the young and the old, and find that youth is smellier.

The Smell of Age: Perception and Discrimination of Body Odors of Different Ages

My comment:

Nutrient chemicals in the ecological niche calibrate individual survival, and the nutrient chemicals metabolize to pheromones in the social niche, which standardize and control reproduction in all species. Ecological and social niche construction also are required for adaptive evolution. For example, the construction of ecological and social niches results in epigenetic effects of food odors and pheromones on the hypothalamic neurogenic niche responsible for mammalian brain development and behavior. This exemplifies the design that is apparent in biology. That is, the transgenerational epigenetic inheritance of the molecular mechanisms for food preferences and social/kin preferences are manifestations of the common molecular biology of organisms from microbes to man.

Given the fact that body odors (social odors called pheromones) convey social cues that are as important as food odors to species survival in all species, it should surprise no one that we can detect differences in age via these olfactory/pheromonal cues. How could this not be the same in humans as in every other species that can detect the differences in aged foods and aged conspecifics. Food odors and pheromones classically condition our response to the visual appeal of food and conspecifics as occurs in all other animals. It’s nice to see the data that prove another aspect of this model for species survival, but to many people it’s common sense. Isn’t it? You’re not likely to eat something that doesn’t smell right, or mate with anyone who doesn’t smell right. The common sense that ensures that is olfaction.

About James V. Kohl 1308 Articles
James Vaughn Kohl was the first to accurately conceptualize human pheromones, and began presenting his findings to the scientific community in 1992. He continues to present to, and publish for, diverse scientific and lay audiences, while constantly monitoring the scientific presses for new information that is relevant to the development of his initial and ongoing conceptualization of human pheromones. Recently, Kohl integrated scientific evidence that pinpoints the evolved neurophysiological mechanism that links olfactory/pheromonal input to genes in hormone-secreting cells of tissue in a specific area of the brain that is primarily involved in the sensory integration of olfactory and visual input, and in the development of human sexual preferences. His award-winning 2007 article/book chapter on multisensory integration: The Mind’s Eyes: Human pheromones, neuroscience, and male sexual preferences followed an award winning 2001 publication: Human pheromones: integrating neuroendocrinology and ethology, which was coauthored by disinguished researchers from Vienna. Rarely do researchers win awards in multiple disciplines, but Kohl’s 2001 award was for neuroscience, and his 2007 “Reiss Theory” award was for social science. Kohl has worked as a medical laboratory scientist since 1974, and he has devoted more than twenty-five years to researching the relationship between the sense of smell and the development of human sexual preferences. Unlike many researchers who work with non-human subjects, medical laboratory scientists use the latest technology from many scientific disciplines to perform a variety of specialized diagnostic medical testing on people. James V. Kohl is certified with: * American Society for Clinical Pathology * American Medical Technologists James V. Kohl is a member of: * Society for Neuroscience * Society for Behavioral Neuroendocrinology * Association for Chemoreception Sciences * Society for the Scientific Study of Sexuality * International Society for Human Ethology * American Society for Clinical Laboratory Science * Mensa, the international high IQ society