Given the few million year evolution, the Earth magnetic field intensity would be a good bet, i.e. somewhat less than 1 gauss. I don't think a constant field would have any negative effect even at higher intensity. However, living creature may have developed senses to interpret the electromagnetic radiation, so one may expect we react to the Shumann frequencies since they are the natural resonances of Earth atmosphere. The anxiety perceived ahead of a big storm may be simply our identifying the 7.83 Hz Earth natural resonance excited by the storm. Since the living creature may react as non-linear systems, half that frequency ~4 Hz may also have a strong impact. A high intensity constant magnetic field may affect the body due to induced currents/cellular membrane potential changes. I don't have a clear scaling of what such high field may mean. Experiments with frogs under very high intensity magentic field, so high that the frog was levitating in the field due to the paramagnetic characteristic of living creature, shows that living creature could support very high magnetic fields, at least for limited exposure.
HP reminded me of something closed to home, a tradition lost in modern times. Before building a house, a fountain digger was invited in order to map the land using the magic wand. He would find the best place for the house and for the fountain. On occasion he would advise to build no house on the respective land. The ones neglecting the advise would be "cursed" with short lives and disease. A strong turbulent water stream may change the local magnetic field. Also, grand mother wisdom, one would sleep his head oriented North when healthy but orinted South when sick. The people wisdom can't be neglected since the brain is an excelent pattern identification/correlation "machine".
As Preprint Late Pleistocene shift of Earth's coating caused melting of ...
mentioned that the earth magnet strength dropped to be 1/3. It means that human beings can live 3 times of the current magnet field without trouble.
In Chinese, we call Feng Shui to locate a place for the building or a grave to live, to build. People use a campus and observe the environment to make the decision. What kind tools do you know the western people used to find a place to build?
Thanks for your comments. Magnet supplied a cheap approach to treat health issues and can solve many hard to treat health issues when the western and eastern medicines failure to treat.
Dear Frieda Mah , the tool used in the European culture is the "magic wand". Looking as an engineer of the working of the wand, the wand is nothing more than motion amplifier. The sensitive part is the person who holds the wand and concentrate actually to keep the wand from moving. Most likely, left/right barely perceivable body assymmetry results in wand motion. The engineering challenge is to build an antenna and amplifier to measure long wave low frequency electromagnetic waves, which apparently the living creature have a "pattent" I have a friend who can find the precise location of a water main cracking by using the magic wand, as precise as ultrasonic modern methods or sound collocation. As an engineer, I know we operate with some preconceptions of accuracy: living creatures are very accurate in perceving change but less accurate in estimating the absolute value. This gives the impression that modern instrumentation is more accurate (and may be as long as is calibrated !). On the subject of Earth magnetic field reversion: the magnetic field protects the living creature from the negative effects of ionizing radiation primarily released by the Sun. Also it stabilizes the climate. The cloud formation is significantly affected by atmospheric ionisation. I don't intend to debate on the subject, given the public sensitivity to the issue. However, it's interesting to understand the ambient conditions that determined the living creatures addaptation process.
Thanks for your comment. You have high imagination and excellent literature ability. Do they help you a lot in your career?
I agree with you that once a person knows how to manipulate the "magic wand" or his subconscious can communicate with the "magic wand". He can has magic discovery or invention or revolution.
Yes. "Understand the ambient conditions that determined the living creatures adaptation process." is always considered in the TCM. So, we have the best dosage range for most people to use and have modifications for a specific patient. We also have contraindications and caution to use in our therapies.
Thanks for your comment. I know there is a shortage for the research. So, I post here to see if there is any one want to do the research or already had this kind experience. Thanks.
Dear Frieda Mah , I use my imagination a lot in my trade of choice and on occasion I manage to create "miracles", i.e. things that people in the trade would say "I don't believe..." or " I couldn't imagine...". Although I relay heavily on science, I am also aware that present science needs imagination to evolve. Too much about somebody !
When you use magnetic fields, you could monitor the physiological reaction using classic "lie detectors". They are good enough to prompt one to ask questions on the patient perceived state of good or bad. The idea of highly amplified physiological reaction is very reach and was/is used in functional recovery after major nerve damage. The brain may lack the correct feeling feedback but that feedback could be partially compensated by some external indication, e.g. the electrical potential in a finger that's supposed to move. The brain learns very quickly how to move the finger in spite of lack of normal feedback.
Seems engineers are very good at giving advice ;-)
Thanks for asking. It's all of the magnetic field forces add to the body. So, it can be the summation of the DC and AC forces.
The magnet of the body is we bearing. The health influence is the outside force that acting to our body..
My book is using fix magnet pieces to do healing for health issues. The interesting thing is that in 2016, I bought all of the marketing books about the magnetic therapy. All of the advice from the books is maximum 1000 Gauss/piece magnet and no more than 5-6 magnets can be used that matched some senior acupuncturists told me.
As my first trial, before I went back to visit my ER's Mom in Taiwan, I put 24 pieces of 12,000 Gauss magnets and 20 pieces of 1000 Gauss magnets on what I had on my body. I was safe.
For later years, I put even more than 120 pieces of 12,000 Gauss magnets on the body, it is still safe. It burns my curiosity of how many Gauss can add to our body?
Even I searched online, the warning is less for the nerve and head. I put more than 80 pieces of 12,000 Gauss on my head, the feeling was so good and I figured out that I can "put more"!
Here, again, I want to say that medical is a very strong practical science. From the theory and/or thinking or cite from the other academic publications cannot be 100% trust-able.
In 2016, the books that I read also warning the magnet cannot put on the body more than a week. After against the strength of the magnet and three weeks put a couple of tens 12,000 Gauss magnets on my mother's body as well as my mother's situation were showing a stable improving. I thought it's the time to remove the magnets to avoid any bad things happen that I did not know.
However, only after four hours of removing the magnets, I went back to the hospital to visit my mother. There were more bottles hung for my mother. I asked my sister-in-law to bring the magnets back to the hospital to me. My mother's was never coming back to the situation before I remove the magnets.
It's the first time, I think about the Chinese saying, if "Fulling trust the book, it's better has no book!" Therefore, I disagree the academic grading, especially the medical field using the citation to define a person's achievement as well as his publication's value!