According to Colleen Walsh in her article “What the Nose Knows” for the Harvard Gazette, smells “take a direct route to the limbic system, including the amygdala and the hippocampus, the regions related to emotion and memory.” As such, “the olfactory signals very quickly get to the limbic system,” affecting mood and behavior in a way that few other senses can manage. Infusing one’s home with fragrances — often altered from room to room in order to create a certain, site-specific atmosphere — can affect mood and behavior positively. For example, lavender can calm and soothe, cinnamon can comfort and invigorate and rosemary can boost productivity and creativity. However, scent can also be harmful to the body and to the environment within one’s home, as outlined in numerous studies conducted in recent years.
For instance, in her 2011 paper “Indoor Air Quality: Scented Products Emit a Bouquet of VOCs” for the Journal of Environmental Health Perspectives, Carol Potera revealed that “scented consumer goods” — like “air fresheners, laundry detergents, fabric softeners,” etc. — “emitted more than 100 volatile organic compounds (VOCs), including some that are classified as toxic or hazardous by federal laws.” Furthermore, it was discovered that “a single fragrance in a product can contain a mixture of hundreds of chemicals, some of which (e.g., limonene, a citrus scent) react with ozone in ambient air to form dangerous secondary pollutants, including formaldehyde.” According to the EPA, continued exposure to VOCs indoors can result in “eye, nose and throat irritation, headaches, loss of coordination and nausea as well as damage to liver, kidney and central nervous system.” Some VOCs are even “suspected or known to cause cancer in humans.” Protect your body from damage by choosing all-natural, non-aerosolized and non- combusting home fragrances.