Have you ever wondered why you feel healthier and happier when you stroll through the trees or frolic by the sea? Is it just that you’re spending time away from work, de-stressing and taking in the view? Or is there more to it?
For more than 20 years, scientists have been trying to determine the mechanisms by which exposure to biodiversity improves health. Japanese scientists pioneered the search when they travelled to the island of Yakushima, famous for its biodiversity.
The Japanese already had a name for the experience of well-being in nature: shinrin-yoku or “forest bathing”.
We do know that a diverse ecosystem supports a varied and beneficial microbial community living around and inside us.
We also know that exposure to green space, even within urban environments, increases our physical and mental well-being. But what are the mechanisms?
The forest air
The Japanese researchers suggested that we are taking in beneficial substances when we breathe forest air.
Research has identified three major inhaled factors that can make us feel healthier. These factors are beneficial bacteria, plant-derived essential oils and negatively-charged ions.