A
study on "Shinrin-yoku", or forest air bathing/breathing, was published in Japan in 2006.
The study doesn't reveal anything that we don't already know. Science is often like that. Only a few years ago was it scientifically proven that stress has an effect on our health...
Anyway, in this study, the psychological effects of being in a forest and breathing forest air was measured. And surprise, surprise, people were considerably less stressed and more energized.
Self-evident maybe, but definitely a good reminder. I'm thinking when was the last time I was in a forest? Can't even remember. I'm sure there are some forests somewhere in the UK...
In 2007,
a more detailed study was published in "Journal of Physiological Anthropology" where physiological as well as psychological effects were measured. They found that "sympathetic nervous activity was suppressed and parasympathetic nervous activity was enhanced in the forest area, and that
Shinrin-yoku reduced stress levels." Blood pressure and pulse rate was significantly lower, and salivary cortisol concentration was significantly lower in the forest, among the measured criteria.

An earlier study done in Australia in 2001 covered the more abstract subject of "
TRANSCENDENT EXPERIENCE IN FOREST ENVIRONMENTS". Quoted from the abstract:
"The paper discusses broad classifications of transcendent experience in forest and considers the implications for understanding the spiritual meaning of nature. "I don't visit a forest very often. But I plan to now, being reminded of their existence. So I will find some nice British forests for a weekend retreat.
But until then, luckily, I'm doing my shinrin-yoku every day, be it at work or at home. All it takes is an
Air Wellness Power 5 Pro. And you have clean, energized, ion rich air.
Breathe!