PINE NEEDLES - HOW FOREST MEDICINE WORKS FOR ANXIETY & OVERWHELM
The Science behind the Calm
When you breathe in that distinctive pine forest scent, you’re inhaling a complex symphony of therapeutic compounds. The star player is a-pinene, a monoterpene that research suggests can help lower cortisol levels and reduce anxiety-related inflammation in the brain. Alongside a-pinene, pines contain B-pinene, limonene, and camphene - each contributing to what scientists call the ‘entourage effect”, where compounds work together more powerfully than they would alone.
How These Forest Compounds Actually Work
These pine terpenes work through multiple pathways in your nervous system. a-pinene appears to enhance GABA activity - the brain’s primary calming neurotransmitter - while simultaneously reducing the inflammatory response that often accompanies chronic stress.
When you inhale these compounds, they cross the blood-brain barrier within minutes, which explains why a simple walk through pine forests can shift your entire emotional state so quickly.
The Safe Pines vs. The Dangerous Look-Alikes
Not all evergreens are created equal, and this is crucial for your safety. True pines (Pinus species) like Scots pine, and white pine are generally safe for tea when harvested properly.
However, yew trees (Taxus species) are extremely toxic and can be fatal if consumed. Norfolk Island pines, despite their name, aren’t true pines and should be avoided for internal use.
When in doubt, positive identification by an experience forager or herbalist is essential.
When Pine Medicine isn’t Right for You
While generally gentle, pine needles aren’t suitable for everyone. Pregnant and breastfeeding women should avoid internal use, as some pine compounds may stimulate uterine contractions. Those with kidney conditions should exercise caution, as pine’s diuretic properties could potentially strain already compromised kidneys. Pine can also interact with certain blood-thinning medication due to its vitamin K content.
The Wisdom Our Ancestors Knew
Long before we understood monoterpenes and GABA receptors, indigenous cultures worldwide recognised pine’s ability to calm anxious minds and strengthen emotional resilience during difficult times. Sometimes the most sophisticated medicine comes dressed in the simplest form - fresh needles steeped in hot water, or the conscious act of breathing deeply among ancient trees. Science is simply catching up to what the forest has always known.
References
Borges e Soares, G. A., Bhattacharya, T., Chakrabarti, T., Tagde, P., & Cavalu, S. (2022). Exploring pharmacological mechanisms of essential oils on the central nervous system. Plants, 11(1), 21. https://doi.org/10.3390/plants11010021
Costanza, K. K. L., Whitney, T. D., McIntire, C. D., Livingston, W. H., & Gandhi, K. J. K. (2018). A synthesis of emerging health issues of eastern white pine (Pinus strobus) in eastern North America. Forest Ecology and Management, 423, 3-17. https://doi.org/10.1016/j.foreco.2018.02.049
Juurlink, B. H. J. (2025). Forest organic volatile compounds: Do monoterpenes affect physiological processes that promote health? Preprints.org. https://doi.org/10.20944/preprints202503.1246.v1
Metsämuuronen, S., & Sirén, H. (2019). Bioactive phenolic compounds, metabolism and properties: A review on valuable chemical compounds in Scots pine and Norway spruce. Phytochemistry Reviews, 18, 685-714. https://doi.org/10.1007/s11101-019-09630-2
Zhamsaranova, S. D., Shiretorova, V. G., Erdyneeva, S. A., Tykheev, A. A., & Lebedeva, S. N. (2025). Assessment of the adaptogenic properties of herbal tea based on pine needles and microstrobiles. Food Systems, 8(1), 124-133. https://doi.org/10.21323/2618-9771-2025-8-1-124-133