Plants have a built-in defense system against microbial threats in the form of phytoncides – organic compounds they naturally produce. Trees, especially conifers like pine, fir, cedar, and eucalyptus are notable sources of these antimicrobial agents. When plants are under duress from bacteria, viruses, fungi or other stressors, they release phytoncides into the surrounding air.
That crisp, refreshing scent we associate with forests or the bush? You can thank phytoncides for that invigorating aroma. But these plant compounds offer more than just pleasant smells. Research suggests various health benefits from phytoncide exposure, also known as “forest bathing”:
Immunity – Inhaling phytoncides may ramp up natural killer cells and anti-cancer protein production to strengthen immune defenses.
Stress – Time around phytoncides has been linked to lower stress hormones and improved mood due to their potentially calming effects.
Antimicrobial – With their ability to suppress harmful microbes, phytoncides help purify the air and environment.
Respiratory – Preliminary evidence hints that phytoncide exposure could provide respiratory benefits.
Mental Health – Spending time in phytoncide-rich natural areas may reduce anxiety and depression.
While not a medical cure-all, phytoncides complement the well-established mental and physical health advantages of immersing yourself in nature. The growing forest bathing trend highlights our societal desire to connect with nature, and reap the antimicrobial and restorative rewards provided by these plant-protective compounds.