

Chapter 1
The global roots of nature therapy
Chapter 2
The organic chemistry of trees
Chapter 3
What happens to a body in the wild
Chapter 4
Designing your own nature ritual
Ch 3 · What happens to a body in the wild

lara In Japan, Dr. Yoshifumi Miyazaki found that forest environments calm our constant fight-or-flight response by activating the parasympathetic nervous system.
Quiz
Which branch of the nervous system is activated by forest bathing, helping the body rest, digest, and recover?
Quiz
Japanese researcher Dr. Yoshifumi Miyazaki found that forest walking reduced what key stress hormone in saliva by over 12 percent?

lara The immune-boosting effects of forest bathing last in the bloodstream for thirty days.
Quiz
According to Dr. Qing Li's clinical studies, how long does the immune-boosting effect of a three-day forest trip last in the body?
Quiz
Which specific type of white blood cells, crucial for fighting viruses and tumors, increases significantly after forest bathing?
Fun Fact
Immune boost: Just a single day trip to a suburban park can boost your immune system's active white blood cells for an entire week.
Quiz
What is the name of the cognitive theory developed by Rachel and Stephen Kaplan to explain how nature restores mental focus?
Quiz
In a 2012 study, hikers offline in nature for four days saw what percentage improvement in creative problem-solving?
Quiz
At what moderate altitude range do hikers begin to experience the beneficial cardiovascular adaptations of mild hypoxia?