Creative Introvert

Brimming full of creative energy. Loving my family and art.

[Millie Marconi @MillieMarconnni]

A Japanese immunologist spent 20 years proving that the chemicals trees release into the air walk into your bloodstream, hunt down your stress hormones, and arm your immune system in ways no therapist or pharmaceutical has ever matched, and most of the data has been sitting in Japanese medical journals for two decades waiting to be translated.

His name is Qing Li.

He is a clinical professor at Nippon Medical School in Tokyo and the president of the Japanese Society of Forest Medicine. The Japanese government has been funding his research since 2004, and the body of work he has produced is the reason forest bathing is now an officially prescribed clinical therapy in Japan and Korea.

The story actually starts in 1982, when the Japanese Ministry of Agriculture, Forestry and Fisheries coined the term shinrin-yoku to describe the practice of slow, mindful walking in a forest. They did it for a practical reason.

Japan was urbanizing fast, stress-related illness was climbing, and the country had thousands of square kilometers of forest sitting unused. The idea was to give people a reason to walk into the trees... They had no idea what was actually happening to the human body during those walks until Qing Li ran the first proper experiment in 2005.

He took twelve healthy adult men on a three-day, two-night trip to a forest park. They walked for a few hours each day. Nothing strenuous. No prescribed routes or breathing exercises. They simply walked slowly through the trees, breathing the air, looking at the forest.

Li drew blood and urine samples before the trip, on the second day, on the third day, on day seven after returning home, and again on day thirty.

The numbers that came back from the lab were not what anyone expected.

The activity of a specific type of immune cell called the natural killer cell, which is the cell your body uses to hunt down cancer cells and virus-infected cells before they can spread, had jumped by roughly 50 percent during the forest trip. The actual number of natural killer cells circulating in the bloodstream had increased significantly.

Three different anti-cancer proteins that those cells produce, called perforin, granzymes, and granulysin, had all risen sharply. And the effect did not disappear when the men went home. The immune boost was still measurable on day seven and was still partially present on day thirty.

Two hours a day in a forest had upgraded the immune system for a full month.

Li ran the same experiment with women a year later and found nearly identical results. Then he ran it with a control group who took a three-day trip through an urban area with the same amount of walking, the same hotel quality, and the same diet.

The urban group showed no measurable change in natural killer cell activity at all. The forest was doing the work, not the vacation.

The mechanism turned out to be a class of airborne molecules called phytoncides. Trees produce these compounds to defend themselves against insects, bacteria, and fungi. Pine, cedar, oak, and cypress trees release them in particularly large amounts, especially in warmer weather and after rainfall.

When you walk through a forest, you are inhaling those molecules into your lungs and absorbing them through your skin, and once inside your body they appear to directly stimulate the production and activity of the very immune cells Li was measuring in his lab.

Roughly 50 percent of the health benefit of a forest walk, according to Li's data, comes from the chemistry of the air itself. The other half comes from what the forest is doing to your nervous system.

This is where it stops being only about the immune system and starts being about stress.

A separate Japanese research team measured cortisol, the body's main stress hormone, in 84 participants across 35 different forest sites. They drew samples before and after a 30-minute walk in each forest and compared them to control walks in matched urban environments. The cortisol levels of the people who walked in the forest were lower than the cortisol levels of the people who walked in the city by a significant margin. Their heart rates were lower. Their blood pressure was lower.

The activity of their parasympathetic nervous system, which is the part responsible for rest and recovery, had gone up. The activity of their sympathetic nervous system, which is the part that drives fight or flight, had gone down.

Then a researcher at the University of Michigan named MaryCarol Hunter ran the cleanest version of this experiment ever done. She recruited participants from a city and told them to take a nature pill three times a week for eight weeks.

They were free to choose the time, the place, and the duration of the nature experience, as long as it was outside, in daylight, and free of phones, conversations, and aerobic exercise. They sent her saliva samples before and after each session so she could measure cortisol changes accurately and rule out the normal daily drop in stress hormones that happens to everyone.

The result was that participants experienced a 21.3 percent drop in cortisol per hour spent in nature, with the biggest payoff happening between minutes 20 and 30 of the walk.

After that, the cortisol kept dropping, but more slowly. The threshold dose for measurable stress relief was just 20 minutes outside in something that looked and felt like nature.

What none of this means is that nature is a substitute for therapy or for medication when someone genuinely needs them. Therapy treats different things than a walk does, and Li himself has been careful in interviews to call forest bathing a complementary intervention rather than a replacement for clinical care.

But what the research has settled is that the human body has a physiological response to being among trees that operates on the same biological systems modern medicine is trying to reach with drugs and clinical protocols, and that response is fast, measurable, and free.

The strangest part of Li's work is the implication he keeps repeating in interviews. The average person now spends more than 90 percent of their life indoors. Their cortisol stays elevated. Their natural killer cells stay sluggish.

Their parasympathetic nervous system rarely gets a chance to take over. The system that was tuned by millions of years of life under a canopy of trees is being asked to run permanently inside a box made of drywall and screens.

Your body has not forgotten what it is supposed to do in a forest. It is waiting for you to walk into one.

[Creative Introvert @CreatorAndrea]

Yay!

[Brandon Sanderson @BrandSanderson]

Brandon Sanderson’s Literary Fantasy Universe ‘Cosmere’ Picked Up by Apple TV (Exclusive) https://t.co/CFB3WVjJMd via @thr

[Creative Introvert @CreatorAndrea]

@sleepingatlast @Veeps What is the difference between the two price points? I’ll be there in person, but am thinking about getting this to watch later again

[Taylor Swift @taylorswift13]

Tonight all these lives converge here
The mosaics of laughter and cocktails of tears
Where fraternal souls sing identical things
And it’s beautiful
It’s rapturous.
It is frightening.
———
I can’t tell you how proud I am to share this with you, an album that just feels so right. A forever thank you goes out to my mentors and friends Max and Shellback for helping me paint this self portrait.

If you thought the big show was wild, perhaps you should come and take a look behind the curtain...

The Life of a Showgirl is out now.

https://t.co/VetltwlcoJ

Album Producers: Max Martin, Shellback and Taylor Swift
📸: Mert Alas & Marcus Piggott

[Tesla @Tesla]

If you bought a Model 3 in 2021, these are the features it has received since then

All via free over-the-air software updates

[Writer's Digest @WritersDigest]

In this interview, author Rachel Greenlaw discusses how the setting came to life the same as a character, how her most recent novel started as a one-sentence pitch, and more. #WDAuthorSpotlight
https://t.co/qHsekodvHY

[Massimo @Rainmaker1973]

Anthony Schmidt is a 16 year old on the autism spectrum who takes photos of miniature cars and makes them look life-sized.

[📹 anthony_ryan_schmidt_]
https://t.co/1UvTOCE6lG

[James Lucas @JamesLucasIT]

Thread of crazy painting details 🧵

1. It's all in the eyes

[Creative Introvert @CreatorAndrea]

@AndroidAuth I returned the Pixel (not feeling near as satisfied as I recalled) and felt much more satisfied with my iPhone. Updates and security were my initial reasons. Also quicker and better updates for some applications that I highly value.

[Creative Introvert @CreatorAndrea]

@AndroidAuth I switched a few years ago because I was tired of my perfectly good phones (pixel) no longer receiving updates. And I struggled with that switch. A few months in, I decided I wanted a Pixel again so I went to Best Buy and picked it up. This maybe only lasted a week.

[Creative Introvert @CreatorAndrea]

@simpsonWVTM13 Have all of these storms lowered the risk to come in several hours?

[Gabe Garfield @WxGabe]

The last EF5 tornado to officially hit the United States struck Moore, Oklahoma on 5/20/13.

And, for the last ten years, I believed that this storm's intensity could be attributed to an outflow boundary.

It turns out, I was wrong.

1/8

[Jason Simpson @simpsonWVTM13]

Incredible!👀

[Creative Introvert @CreatorAndrea]

@Ask_WellsFargo When calling them, bill pay is down for system wide maintenance. He suggested I try in the morning. Just thought you should know for the next person who asks.

[Creative Introvert @CreatorAndrea]

@Ask_WellsFargo Bill Pay is not working in my accounts. All my payees have disappeared and when I try to add one back, I get notice that bill pay isn’t working right now. How long should I expect this? Can I pay my bills in the morning, or do I need to find another way?

[Creative Introvert @CreatorAndrea]

@Ask_WellsFargo Can I call them now? I have cleared cache and that isn’t helping.

[Creative Introvert @CreatorAndrea]

@Ask_WellsFargo I was using my Mac. I’ve never used my phone. So you’re saying there’s no reason bill pay should be down?

[Creative Introvert @CreatorAndrea]

@doterra Hope. Before the change was made.

[Anthony Franze @AnthonyFranzeWX]

You've heard of a rope tornado...but check out this dust devil! #txwx #StormTracker9

📷 LeAndra Natividad Rede, Monahans