The history of medicine is filled with accounts of strange and often downright dangerous treatments, but these have sometimes opened the way for lifesaving discoveries. In this Curiosities of Medical History feature, we look at the unusual practice of exposing the body to cold temperatures for therapeutic purposes: therapeutic hypothermia.
The term hypothermia appears to have first emerged in English-language texts in the late 19th century. It comes from the ancient Greek word for hot or warm therms to which the Greek-derived prefix hypo-, meaning under, is added.
Nowadays, hypothermia is classed as a severe condition in which the body is unable to maintain its normal heat, and body temperature drops dangerously. Severe hypothermia can result in heart failure and death.
This dangerous medical condition has been understood as such for centuries, yet there is also another side to the history of hypothermia.
Therapeutic hypothermia the cooling of the body for therapeutic purposes is a medical practice that has been around, in one form or another, since ancient times.
Some of its uses have been controversial at best, but it has also given rise to legitimate modern-day treatments. In this Special Feature, we briefly outline the complex history of therapeutic hypothermia.
To understand more about the curious history of therapeutic hypothermia and the continued appeal of exposure to low temperature for medical purposes, we also spoke to Dr. Phil Jaekl, neuroscientist and science writer, whose upcoming book, Out Cold: A Chilling Descent into the Macabre, Controversial, Lifesaving History of Hypothermia, discusses these topics at length.
Therapeutic hypothermia seems to have been practiced for over 5,000 years. Its first known mention was in the Edwin Smith Papyrus, a medical treatise outlining treatments for various injuries and ailments, a text that may date back to around 3,500 B.C.E.
The earliest written records of using cold were discovered in ancient Egyptian texts, Dr. Jaekl told Medical News Today. Some experts think these texts are the first recordings of medical teachings from Imhotep, a polymath and advisor to the pharaoh Zoser. They suggest using local cold applications to treat skin irritations, likely for [enslaved people] or in military situations.
For an abscess with prominent head on the breast, the papyrus prescribes cool applications, which in this case were ointments with cooling effects, made of ingredients such as fruit, masons mortar, and water.
According to Dr. Jaekl, [t]hese texts are significant because they are some of the first to advocate systematic medical procedures rather than incantations or prayers, which were common at that time. The Edwin Smith Papyrus is possibly one of the first medical textbooks laying out case studies of physical ailments and indicating dedicated treatments.
Some of the better known forefathers of medical science also wrote about cold temperatures and their dangers and therapeutic potential. The next big advancement for using cold therapeutically didnt happen until over 1,000 years had passed, when cold was incorporated into the humorist system of medicine, Dr. Jaekl noted.
This system posited that in the human body, there circulate four humors, or liquids, which, when out of balance, would cause any number of diseases. To restore health, a physician would have to diagnose and address the humoral imbalance.
These humors, most often listed as black bile, yellow bile, phlegm, and blood, were either hot or cold, wet or dry, thus causing corresponding afflictions. Fever, as a hot disease, would have required exposure to an opposite element as a treatment.
Ancient Greek physician Hippocrates (c. 460370 B.C.E.) spoke of the dangers of exposure to cold at some length in his treatises. He pointed out that cold causes fits, tetanus, gangrene, and feverish shivering fits [and it] is bad for the bones, teeth, nerves, brain, and the spinal cord.
Yet he also recognized the therapeutic potential of cooling elements, as he prescribed using snow and ice to stop bleeding, and drinking cold water to bring down fever.
Galen (129c. 210 C.E.), who was significantly influenced by Hippocrates, is credited with the invention of cold cream, which he prescribed not for skin care or the removal of makeup, as it later came to be used, but for cooling purposes in a medicinal context.
His cold cream may have been a mixture of olive oil, water, and beeswax.
[The use of cold] was advocated by the pioneering Greek physicians Hippocrates and Galen to help balance bodily humors. In fact, Galen is known to have invented cold cream, which is still popular today, although he advocated it for treating fever rather than as a moisturizer.
Dr. Phil Jaekl
The method of cooling the body as a therapeutic intervention further expanded in the 17th century, when physicians such as John Floyer (16491734) started experimenting more widely with the use of hot and cold water in medicine.
In his treatise, An Enquiry into the Right Use and Abuses of the Hot, Cold, and Temperate Baths in England (1697), Floyer wrote at some length about the hygiene and medicinal benefits of cold water baths.
In the hot Air of Summer, our Bodies are of less Strength; therefore in Summer it is necessary to concenter our Strength and Spirits by Cold bathing, Floyer wrote, later adding:
I do not persuade my Reader to change those Errors of living, without having first done so my self; for by leaving off strong Liquors, and all hot Diet, Teas, Coffee, &c. and by Water-drinking, and bathing at Buxton [a historic spa town in England Ed.], I have procured to my self better Health, and more Hardiness, than I have enjoyd for many Years before.
He calls this a cold regimen.
At this time in history, Dr. Jaekl told MNT, [b]esides simply using it to cool off, a big breakthrough for cold water was actually to use it for personal hygiene, like in Bath in England [another historical spa town Ed.], for example, where people were, well, bath-ing.
Next, in the 18th century, it was used to treat fevers before it became popularized among the 19th-century European aristocracy as beneficial for aches and pains and general well-being. Around that time, spas became the in-thing, he noted.
Scottish physician William Cullen (17101790) promoted cold shower baths and sometimes cold water enemas for therapeutic purposes, which could be prescribed for a vast array of conditions.
Cullen argued that cold can act as a sedative as well as a stimulant, particularly for the blood flow, and noted that drinking cold water in moderation could help fight fevers, although he also specified that some forms of exposure to cold temperatures can induce a fever.
However, he also suggested that cold bathing could prevent contagion, as well as a flaccidity of the system in young women at a certain period of life.
In the 19th century, Austrian Vincenz Priessnitz (17991851) started a trend of cold bathing as an alternative medicine practice. One of his contemporary admirers, Charles Schieferdecker, described Priessnitzs method of treating fevers in the following manner:
The patient laboring under this fever is put, [] whilst in the state of the utmost heat and the most raging paroxysm, into a bath as cold as possible, and left therein until he is cooled to the very chattering of the teeth.
Later in the 19th and 20th centuries, however, things got worse because [cold water] was used in insane asylums to treat people with psychiatric disorders, basically by subduing them, Dr. Jaekl told MNT.
Attempts to use cold water to treat people with mental health issues were consistent until the turn of the 20th century not because they actually had therapeutic or curative value but simply because they were a means of control, he went on to say.
In the 1800s, surprise cold showers or baths were used to allegedly treat raging excitement and too strong a libido. Such procedures involved dumping a bucket of cold water onto the naked patient or dunking them into an icy bath.
In the 20th century, hot and cold showers as well as the wrapping of patients into hot or cold wet sheets had become common practice in institutions that purported to treat various mental illnesses.
Descriptions of such treatments were disturbing, and the practices themselves would now seem akin to torture. According to one nurses account, cold wrapping took place in the following manner:
[The] blankets were in a big tub with a lot of ice [] you spread them out on the floor and it was [] like wrapping a baby. [] You would put the blanket down triangularly [], [a]nd sometimes you would use as many as two or three blankets because you wanted a heavy coat on the patient [] We pinned those so the patient couldnt get out.
Medical texts from that time note that wraps were used not just to transfer the so-called therapeutic benefits of hot or cold water but as restraints that were necessary evils of maintaining order, not [] remedies aimed at curing disease.
These practices persisted for many decades, though they are now widely condemned as inhumane and traumatizing.
Spraying cold water at people with a hose or having them sit under falling cold water was a terrible experience, and even the threat of it was used to influence the behavior of not only people with mental health issues but also prisoners and even women who werent dutiful wives,' Dr. Jaekl told MNT.
It only fell out of favor when more effective and humane means, like pharmaceutical interventions, were developed, he added.
In the 21st century, however, therapeutic hypothermia has been used legitimately as a resuscitating method during critical care, particularly in the case of cardiac arrest.
Yet it has also gained some popularity as an alternative therapy. Cold water swimming, for example, is cited by some as beneficial to the health of the cardiovascular system, to insulin metabolism, for pain reduction, and even mental health, although experts also warn of health risk, including hypothermia as a medical emergency.
Presently, cold water swimming is becoming repopularized for a number of medical benefits, if done carefully, Dr. Jaekl noticed.
More intriguing and also more controversial is, he explains, cryotherapy, which is the practice of standing naked for 35 minutes in a tank of subzero temperatures. The alleged benefits of this alternative therapy range from stimulating weight loss and reducing inflammation to preventing depression, dementia, and even cancer.
Dr. Jaekl, who lives in Scandinavia, questioned its benefits, though he suggested that both this practice and that of cold water swimming can be appealing simply for the excitement they provide:
Cryotherapy sitting in a chill tank for a few minutes seems like a trend that has yet to prove itself. People are curious. Id be excited to try it out. Where I live, though, in the Norwegian arctic, daring people simply go for a dip in the ocean [is the ruling trend]! Its a tradition, and Ive heard it gets a lot easier the more you do it.
Going forward, he noted, the uses of freezing cold are straddling the borders of science fiction and medical advancement. Freezing the human brain at the moment of death so as to preserve a persons personality, knowledge, and essential self is something that some scientists have been researching assiduously.
[T]here are way more intense forms of cryotherapy. Cryonics, for example. Humans are obsessed with immortality. Being cryopreserved involves more than being dumped in a vat of liquid nitrogen after death and then hoping for some distant future magic, Dr. Jaekl told us.
He added that cryonics is a very complex process, involving continuously evolving medical and technical advancements, suggesting that [d]evelopments in computing and nanotechnology, for example, give people [] a glimmer of hope in terms of being revived after being frozen and preserved.
Read the original here:
The strange history of therapeutic hypothermia - Medical News Today
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