
Chapter 1
The biology of moving in sync
Chapter 2
The green exercise effect
Chapter 3
Global movement cultures
Chapter 4
The science of community and accountability
Ch 2 · The green exercise effect

thabo Inhaling antimicrobial phytoncides from plants during outdoor training reduces cortisol stress levels and strengthens our body's defense system.
Quiz
What are the antimicrobial compounds released by trees and plants that boost human immune cells during outdoor workouts?
Quiz
According to a 2009 Japanese study, breathing in forest air can increase our body's 'natural killer' immune cells by how much?

thabo Green outdoor workouts trigger soft fascination to restore cognitive function and creativity.
Quiz
Which husband-and-wife psychologist team developed Attention Restoration Theory to explain how nature heals mental fatigue?
Quiz
What type of effortless attention is triggered by natural scenery, allowing our brains to rest and recover during outdoor exercise?
Fun Fact
Forest immunity: Spending just two days exercising in a forest can boost your immune system's protective cells for up to thirty days.
Quiz
Which marine biologist coined the term 'Blue Mind' to describe the calming, meditative state humans experience near water?
Quiz
Which neurochemicals are released in higher amounts when we exercise near oceans, lakes, or rivers?
Glossary
green exercise (noun)
Physical activity performed in natural, outdoor environments like parks, gardens, or forests. University of Essex researchers coined the term in 2003 to study nature's synergistic benefits with physical activity.
Physical activity performed in natural, outdoor environments like parks, gardens, or forests. University of Essex researchers coined the term in 2003 to study nature's synergistic benefits with physical activity.
Quiz
Why does running on uneven natural terrain help prevent repetitive strain injuries compared to running on a gym treadmill?
Quiz
According to biomechanics research, trail running burns up to how much more energy than running on a flat treadmill?