Mental health and stress benefits
Another study suggests that the reduction in stress hormones, such as adrenaline and noradrenaline found in urine, through forest therapy may also contribute to the increased NK cell activity. Alongside the reduction of stress, researchers also found a significant increase in serotonin, which contributes to healthy sleep patterns as well as regulating appetite, anxiety, mood, sexual desire, and more! Multiple studies show a significant decrease in negative feelings among subjects, such as a reduction in tension, anxiety, depression, anger, hostility, exhaustion, and confusion.
Trees also emit scents called terpenes to communicate with each other or beneficial insects. Some of these terpenes we humans can smell quite clearly, others we perceive only unconsciously due to the low concentration. However, they still affect our nervous system and lower the blood flow in the prefrontal cortex. Normally, we use its capabilities when we need to concentrate strongly. During a stay in the healing forest the brain can relax.
There are even studies that suggest that forest therapy and visits to green spaces could be used in pain therapy. Researchers suggest that contact with nature - phytoncides, fresh forest air, sunshine, and even simply the green landscape - could provide positive results when trying to manage pain. Although this requires further study, it could be a great, natural way to treat chronic conditions such as fibromyalgia.