Scientists know that cells measure chemical concentrations in their environment via receptor proteins on their surface. (sciencemag.org)
However, today we are exposed to chemical concentrations far greater than were our ancestors. (infraredsauna.com)
Chemist and indoor air quality expert Charles J. Weschler, adjunct professor in environmental and occupational medicine at Rutgers University, said he does not think the levels of chemical concentration found in the mattresses are alarming, but he considers the research valuable. (dailymail.co.uk)