Natural Killer Cells - Forest Bathing
Have you ever wondered why spending time in the forest feels so invigorating (okay, minus the bugs)? As it turns out, chemicals emitted via the trees, known as Phytoncides are responsible for the stress reducing experience many feel after a short time forest bathing (Li et al., 2009). Amazingly, Phytoncides are responsible for more than feeling less stressed. They are directly linked to an increase in Natural Killer Cells (Li et al., 2009). Think immune system function. We are inundated with autoimmune diseases, from arthritis attacking the joints, to neurological assaults. To think, the forest is more than just beautiful, but capable of boosting our natural healing capabilities. Phytoncides, the fragrances of the forest, help increase not only our immune system through increasing the NK and NKT cells, but also anti-cancer proteins (Li et al., 2009, p. 956). Reconnecting with nature is not only for the naturalist. When we consider mental health, it is essential to explore the connection to nature as intimately tied. The next time you wonder how to take a breather, spend a few minutes breathing in the forest air!
Li Q, Kobayashi M, Wakayama Y, Inagaki H, Katsumata M, Hirata Y, Hirata K, Shimizu T, Kawada T, Park BJ, Ohira T, Kagawa T, Miyazaki Y. (2009). Effect of Phytoncide from Trees on Human Natural Killer Cell Function. International Journal of Immunopathology and Pharmacology. 22(4):951-959.
Cell Function. International Journal of Immunopathology and Pharmacology, 951–959. https://doi.org/10.1177/039463200902200410
