Updated: August 3, 2026
On the page Prof. Dr. Karl Hecht, the author of the book “Health-damaging effects of smartphones, radar, 5G and WLAN“, you can find a chapter about his personal scientific opinion about preventive healthcare:
“And he looks at the environment’s better use of natural opportunities like forest bathing and propagates those insights. Japanese researchers, for example, came to the conclusion that this can prevent cancer and strengthen the cardiovascular system.”
Wireless radiation creates oxidative stress 1. It is highly important to be informed how to reduce oxidative stress [see links in footnote 1], how to support your physical, emotional and mental health, to prevent serious physical and mental health issues. One of the therapies is forest bathing, Shinrin-yoku [also mentioned in part 1 of footnote 1]. This has been researched in Japan already from the eighties in the former century. Forest bathing has become popular world wide, because of its proven health benefits, and the popularity is still growing.
Shinrin-yoku (Forest Bathing)
The YouTube video Shinrin-yoku (Forest Bathing)2, in my experience by far offering the best filmed atmospheric presence of the real forest energy, can unfortunately not be embedded. Therefore I took a screenshot from the 6 minutes long video, that can be watched also from the website of the director3, Mark Knight4. Video information of the YouTube video: “Screened at over 60 International Film Festivals and Winner of 14 Prestigious Awards, this film is a first-person adaptation of the practice of taking a short, leisurely visit to a forest for health benefits. The practice originated in Japan where it is called Shinrin-yoku (森林浴). Proven by scientists to benefit physical as well as mental health Shinrin-Yoku helps to lower heart rate, blood pressure, reduce stress hormone production, boost immunity and mood and improve overall feelings of wellbeing.”
Studies, articles and books
Springer Nature
Environmental Health and Preventive Medicine
The physiological effects of Shinrin-yoku (taking in the forest atmosphere or forest bathing): evidence from field experiments in 24 forests across Japan
Published: May 2, 2009
PubMed
Shinrin-Yoku (Forest Bathing) and Nature Therapy: A State-of-the-Art Review
Published: August 2017
TIME
‘Forest Bathing’ Is Great for Your Health. Here’s How to Do It
Published: May 1, 2018
National Geographic
The secret to mindful travel? A walk in the woods
Published: October 18, 2019
NATURE connection guide
Top Ten Books Forest Bathing Books
What is a forest?
“The forest is more than a collection of trees. Trees exist in a web of interdependence, linked together by a system of underground channels. This network connects all trees and the system in a constellation of nodes and connections: young and old communicate and respond to each other by sending each other (biochemical) signals. Mother trees – majestic nodes, or hubs, that play a central role in the communication, protection and awareness of the forest – pass their wisdom on to their descendants, their seedlings, generation after generation, sharing their memories of what is helpful and what is harmful , who is friend and who is foe, and how to adapt and survive in an ever-changing landscape.” – Suzanne Simard (Professor of Forest Ecology at the University of British Columbia)
Forest ecology
Forest ecology is the scientific study of the interrelated patterns, processes, flora, fauna and ecosystems in forests. The management of forests is known as forestry, silviculture, and forest management. A forest ecosystem is a natural woodland unit consisting of all plants, animals, and micro-organisms (Biotic components) in that area functioning together with all of the non-living physical (abiotic) factors of the environment.
Cellphones, Forests and Airplane mode
Of course not anybody should take a cell phone into the forest: like humans, plants, mosses, shrubs, trees, the animals, birds and insects that live in the forest, suffer from the severe impact of the globally increasing wireless radiation from active cellphones, of all wireless devices that you take with you. The radiation can be disabled by activating the so-called airplane mode. Information about the effects of wireless radiation, EMF, on all life forms: EMF-links. The ICNIRP5 “safety” guidelines, officially adapted by the industry and governments are unscientific[5][6].
City life: living in a forest of cell towers
And of course forest bathing is not enough to stay healthy, while living 24/7 in a by EMF radiated environment. In the video by the Swedish Radiation Protection Foundation published video “5G, The Untold Story“, but also in the documentary “Something Is In The Air – The cell phone radiation documentary” is explained that the radiation density in cities, exceeds far the EMF radiation level limits. With other words: nobody is protected. ICNIRP guidelines are unscientific6, and do NOT protect. Despite that, governments adapt the ICNIRP guidelines, also WHO7.
Attention! Each active cell phone is worse than a celltower 8, 9. Routers with an active Wi-Fi are radiating with utterly high radiation IN your house. You can test this with for instance the EMFields-Acousticom2..
Footnotes
- Natural remedies and medicine combat oxidative stress (part 1, (part 2)
Interview with Dr. Ulrich Warnke on the status of research: Mobile communications, oxidative stress and repressed prevention ↩︎ - YouTube video Shinrin-yoku ↩︎
- Website of the director Mark Knight: Shinrin-yoku (forest bathing) ↩︎
- Mark Knight: about (below the photo on the page)
Mark Knight: see also Blue Marble Vision ↩︎ - Multerland collection with articles, videos, documentaries, tables, with evidence that ICNIRP guidelines do not protect, and is linked with Telecom: Dossier ICNIRP
See also: footnote 6
See also: FCC & ICNIRP limits Lack A Scientific Basis
Published: December 18, 2025
By: ICBE-EMF
↩︎ - Article: Study proves: current ICNIRP limits are unscientific ↩︎
- The WHO has been connected with ICNIRP already during the 90s, via the WHO-EMFproject. A recent publication: WHO Gets an ‘F’ on RF ICBE-EMF:
Health Reviews Suffer from Faulty Analysis & ICNIRP Bias
Published: October 3, 2025
By: Dr. Louis Slesin
In: MicrowaveNews ↩︎ - Building Biology Institute / Arthur Firstenberg: “Cellphones, Questions & Answers” : “Suppose there is a 2,000-watt cell tower two blocks from your house. The part of your brain next to a cell phone is absorbing up to one hundred thousand times as much radiation from the phone as it is from the tower.” – The exposure decreases with the square of the distance. Definition: If distance is d the square of the distance is d x d = d2
See also: PubMed, “Three principles for radiation safety: time, distance, and shielding“, a study published July 2, 2018, by Jae Hun Kim, Konkuk University School of Medicine, Seoul, Korea.
“A greater distance from the radiation source can reduce radiation exposure. The amount of radiation exposure is not inversely proportional to the distance from the radiation source, but is inversely proportional to the square of the distance [2,4].” ↩︎ - The Cellphone Task Force, Question & Answers: Cell phones are much smaller than cell towers. Doesn’t that mean they are safer? Doesn’t it mean the radiation does not travel as far?
Arthur Firstenberg: Cell phones and cell towers emit the same radiation; size has nothing to do with it. The main difference is that a cell tower emits as many signals
simultaneously as there are cell phones communicating with it at that
time, whereas a cell phone only emits one voice channel and one data
channel. A cell tower therefore emits stronger radiation than a cell phone,
but by the time it reaches your body, its radiation is much weaker than
the radiation from a cell phone that you hold in your hand, near your
body. And a cell phone emits signals that a cell tower does not: Bluetooth,
WiFi, GPS and other signals.
The radiation from a cell phone travels just as far as the radiation from a cell tower. (Forth and back signals.) The radiation from a cell phone will reach all people, animals, birds, insects and plants in line of sight with it, no matter how far away. It
will reach a cell tower 90 miles[145 km] away. It will reach a satellite 22,300 miles
away. It will reach Mars 200 million miles away. With 15 billion mobile devices [Statista: Forecast number of mobile devices worldwide from 2020 to 2025 (in billions)] on the Earth, we are polluting not just our homes, our neighbourhoods and our planet, but the entire solar system.
From: The Cellphone Task Force, Arthur Firstenberg. PDF ↩︎
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