The Painkilling Power Of Opioids, Without The Harm?
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When it comes to painkilling medications, they can generally be categorized into two kinds:
- non-opioids (e.g. ibuprofen, paracetamol/acetaminophen, aspirin)
- ones that actually work for something more serious than a headache
That’s an oversimplification, but broadly speaking, when there is serious painkilling to be done, that’s when doctors consider it’s time to break out the opioids.
Nor are all opioids created equal—there’s a noteworthy difference between codeine and morphine, for instance—but the problems of opioids are typically the same (tolerance, addiction, and eventual likelihood of overdose when one tries to take enough to make it work after developing a tolerance), and it becomes simply a matter of degree.
See also: I’ve been given opioids after surgery to take at home. What do I need to know?
So, what’s the new development?
A team of researchers have found that the body can effectively produce its own targetted painkilling peptides, similar in function to benzodiazepines (an opioid drug), but—and which is a big difference—confined to the peripheral nervous system (PNS), meaning that it doesn’t enter the brain.
- The peptides killing the pain before it can reach the brain is obviously good because that means the pain is simply not experienced
- The peptides not having any effect on the brain, however, means that the mechanism of addiction of opioids simply does not apply here
- The peptides not having any effect on the brain also means that the CNS can’t be “put to sleep” by these peptides in the same way it can if a high dose of opioids is taken (this is what typically causes death in opioid overdoses; the heart simply beats too slowly to maintain life)
The hope, therefore, is to now create medications that target the spinal ganglia that produce these peptides, to “switch them on” at will.
Obviously, this won’t happen overnight; there will need to be first a lot of research to find a drug that does that (likely this will involve a lot of trial and error and so many mice/rats), and then multiple rounds of testing to ascertain that the drug is safe and effective for humans, before it can then be rolled out commercially.
But, this is still a big breakthrough; there arguably hasn’t been a breakthrough this big in pain research since various opioid-related breakthroughs in the 70s and 80s.
You can see a pop-science article about it here:
And you can see the previous research (from earlier this year) that this is now building from, about the glial cells in the spinal ganglia, here:
Peripheral gating of mechanosensation by glial diazepam binding inhibitor
But wait, there’s more!
Remember what we said about affecting the PNS without affecting the CNS, to kill the pain without killing the brain?
More researchers are already approaching the same idea to deal with the same problem, but from the angle of gene therapy, and have already had some very promising results with mice:
Structure-guided design of a peripherally restricted chemogenetic system
…which you can read about in pop-science terms (with diagrams!) here:
New gene therapy could alleviate chronic pain, researchers find
While you’re waiting…
In the meantime, approaches that are already available include:
- The 7 Approaches To Pain Management
- Managing Chronic Pain (Realistically!)
- Science-Based Alternative Pain Relief ← when painkillers aren’t helping, these things might!
Take care!
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The Wandering Mind – by Dr. Michael Corballis
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Our mind’s tendency to wander can be a disability, but could it also be a superpower? Dr. Corballis makes the case for such.
While many authors focus on, well, how to focus, Dr. Corballis argues in this book that our wandering imagination can be more effective at problem-solving and creative tasks, than a focused, blinkered mind.
The book’s a quick read (184 pages of quite light reading), and yet still quite dense with content. He takes us on a tour of the brain, theory of mind, the Default Mode Network (where a lot of the brain’s general ongoing organization occurs), learning, memory, forgetting, and creativity.
Furthermore, he cites (and explains) studies showing what kinds of “breaks” from mental work allow the wandering mind to do its thing at peak efficiency, and what kinds of breaks are counterproductive. Certainly this has practical applications for all of us!
Bottom line: if you’d like to be less frustrated by your mind’s tendency to wander, this is a fine book to show how to leverage that trait to your benefit.
Click here to check out The Wandering Mind, and set yours onto more useful tracks!
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Unprocess Your Life – by Rob Hobson
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Rob Hobson is not a doctor, but he is a nutritionist with half the alphabet after his name (BSc, PGDip, MSc, AFN, SENR) and decades of experience in the field.
The book covers, in jargon-free fashion, the science of ultra-processed foods, and why for example that pack of frozen chicken nuggets are bad but a pack of tofu (which obviously also took some processing, because it didn’t grow on the plant like that) isn’t.
This kind of explanation puts to rest a lot of the “does this count?” queries that a reader might have when giving the shopping list a once-over.
He also covers practical considerations such as kitchen equipment that’s worth investing in if you don’t already have it, and an “unprocessed pantry” shopping list.
The recipes (yes, there are recipes, nearly a hundred of them) are not plant-based by default, but there is a section of vegan and vegetarian recipes. Given that the theme of the book is replacing ultra-processed foods, it doesn’t mean a life of abstemiousness—there are recipes for all manner of things from hot sauce to cakes. Just, healthier unprocessed ones! There are classically healthy recipes too, of course.
Bottom line: if you’ve been wishing for a while that you could get rid of those processed products that are just so convenient that you haven’t got around to replacing them with healthier options, this book can indeed help you do just that.
Click here to check out Unprocess Your Life, and unprocess your life!
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Creatine: Very Different For Young & Old People
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What’s the Deal with Creatine?
Creatine is best-known for its use as a sports supplement. It has a few other uses too, usually in the case of helping to treat (or recover from) specific medical conditions.
What actually is it?
Creatine is an organic compound formed from amino acids (mostly l-arginine and lysine, can be l-methionine, but that’s not too important for our purposes here).
We can take it as a supplement, we can get it in our diet (unless we’re vegan, because plants don’t make it; vertebrates do), and we can synthesize it in our own bodies.
What does it do?
While creatine supplements mostly take the form of creatine monohydrate, in the body it’s mostly stored in our muscle tissue as phosphocreatine, and it helps cells produce adenosine triphosphate, (ATP).
ATP is how energy is kept ready to use by cells, and is cells’ immediate go-to when they need to do something. For this reason, it’s highly instrumental in cell repair and rebuilding—which is why it’s used so much by athletes, especially bodybuilders or other athletes that have a vested interest in gaining muscle mass and enjoying faster recovery times.
See: Creatine use among young athletes
However! For reasons as yet not fully known, it doesn’t seem to have the same beneficial effect after a certain age:
What about the uses outside of sport?
Almost all studies outside of athletic performance have been on animals, despite it being suggested as potentially helpful for many things, including:
- Alzheimer’s disease
- Parkinson’s disease
- Huntington’s disease
- ischemic stroke
- epilepsy
- brain or spinal cord injuries
- motor neuron disease
- memory and brain function in older adults
However, research that’s been done on humans has been scant, if promising:
- A review of creatine supplementation in age-related diseases: more than a supplement for athletes
- Creatine supplementation and cognitive performance in elderly individuals
In short: creatine may reduce symptoms and slow the progression of some neurological diseases, although more research in humans is needed, and words such as “promising”, “potential”, etc are doing a lot of the heavy lifting in those papers we just cited.
Is it safe?
It seems so: Creatine supplementation and health variables: a retrospective study
Nor does it appear to create the sometimes-rumored kidney problems, cramps, or dehydration:
Where can I get it?
You can get it from pretty much any sports nutrition outlet, or you can order online. For example:
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Genital herpes is on the rise. Here’s what to know about this common infection
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The World Health Organization (WHO) recently released new estimates suggesting around 846 million people aged between 15 and 49 live with a genital herpes infection.
That’s equivalent to one in every five people from that age group.
At least one person each second (42 million people annually) contracts a new genital herpes infection.
So what is genital herpes, and are cases on the rise? Here’s what to know about this common infection.
Peakstock/Shutterstock First, what causes genital herpes?
Genital herpes is a sexually transmitted infection (STI) caused by the herpes simplex virus, which also causes cold sores.
There are two types of herpes simplex virus, HSV-1 and HSV-2 (and it’s possible to be infected by both at the same time).
HSV-1 most commonly spreads through oral contact such as kissing or sharing infected objects such as lip balm, cups or utensils, and presents as cold sores (or oral herpes) around the mouth. But it can also be sexually transmitted to cause a genital herpes infection.
An estimated 3.8 billion people under the age of 50 (64%) globally have HSV-1.
HSV-2 is less prevalent, but almost always causes a genital herpes infection. Some 520 million people aged 15–49 (13%) worldwide are believed to have HSV-2.
The initial episode of genital herpes can be quite painful, with blisters, ulcers and peeling skin around the genitals over 7–10 days.
Not all people have severe (or any) initial symptoms. This means a person might not know they have been infected with a herpes virus.
Herpes is a lifelong infection, which means once you contract the virus, you have it forever. After an initial episode, subsequent episodes can occur, but are usually less painful or even symptom free.
Both oral and genital herpes are particularly easy to spread when you have active lesions (cold sores or genital ulcers). But even with no symptoms, herpes can still be spread to a partner.
And although relatively rare, oral herpes can be transmitted to the genital area, and genital herpes can be transmitted to the mouth through oral sex.
If an expectant mother exhibits a genital herpes infection close to childbirth, there are risks to the baby. A herpes infection can be very serious in a baby, and the younger the infant, the more vulnerable they are. This is also one reason why you should avoid kissing a baby on the mouth.
Changing trends
WHO’s recent figures brought together data from around the world to estimate the prevalence of genital herpes in 2020, compared with previous estimates in 2012 and 2016.
This data shows no significant difference in the prevalence of genital herpes caused by HSV-2 since 2016, but does highlight increases in genital herpes infections caused by HSV-1.
The estimated number of genital HSV-1 infections globally was nearly twice as high in 2020 compared with 2016 (376 million compared with 192 million).
A 2022 study looking at Australia, New Zealand and Canada found more than 60% of genital herpes infections are still caused by HSV-2. But this is declining by about 2% each year while new genital infections that result from HSV-1 are rising.
Genital herpes can be quite painful, presenting as sores and lesions that in severe cases, may take up to a month to fully heal. Christian Moro There’s no simple fix, but safe sex is important
Genital herpes causes a substantial disease burden and economic cost to health-care services.
With such a large proportion of the world’s population infected with HSV-1, evidence this virus is increasingly causing genital herpes is concerning.
There’s no cure for genital herpes, but some medications, such as antivirals, can help reduce the amount of virus present in the system. While this won’t kill it completely, it helps to prevent symptomatic genital herpes recurrences, improve quality of life, and minimise the risk of transmission.
To prevent the spread of genital herpes and other STIs, practise safe sex, particularly if you’re not sure of your partner’s sexual health. You need to use a barrier method such as condoms to protect against STIs (a contraceptive such as the pill won’t work). This includes during oral sex.
As herpes is now so common, testing is not usually included as part of a regular sexual health check-up, except for in specific circumstances such as during pregnancy or severe episodes.
So it’s wise not to let your guard down, even if your partner insists they have received the all-clear from a recent check-up.
If there are herpes lesions present around the genitals, avoid sex entirely. Even condoms are not fully effective at these times, as exposed areas can still transmit the infection.
Practising safe sex can help prevent the spread of herpes. cottonbro studio/Pexels Immune health
If you are infected with HSV-1 or HSV-2 it’s more likely symptoms will appear when you’re stressed, tired or overwhelmed. During these times, our immune system may not be as functional, and dormant viruses such as herpes can start to develop quickly in our bodies.
To reduce the risk of recurrent herpes infections, try to eat healthily, get at least seven hours of sleep each night if possible, and look out for when your body may be telling you to take a step back and relax. This self-care can go a long way towards keeping latent viruses at bay.
While the prevalence has increased significantly in recent years, we have not lost the war on genital herpes just yet. Safe sexual practices, education and awareness can help reduce its spread, and the stigma around it.
If you have personal concerns, you should discuss them with a medical professional.
Christian Moro, Associate Professor of Science & Medicine, Bond University and Charlotte Phelps, Senior Teaching Fellow in Medicine, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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10% Human – by Dr. Alanna Collen
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The title, of course, is a nod to how by cell count, we are only about 10% human, and the other 90% are assorted microbes.
Dr. Collen starts with the premise that “all diseases begin in the gut” which is perhaps a little bold, but as a general rule of thumb, the gut is, in fairness, implicated in most things—even if not being the cause, it generally plays at least some role in the pathogenesis of disease.
The book talks us through the various ways that our trillions of tiny friends (and some foes) interact with us, from immune-related considerations, to nutrient metabolism, to neurotransmitters, and in some cases, direct mind control, which may sound like a stretch but it has to do with the vagus nerve “gut-brain highway”, and how microbes have evolved to tug on its strings just right. Bearing in mind, most of these microbes have very short life cycles, which means evolution happens for them so much more rapidly than it does for us—something that Dr. Collen, with her PhD in evolutionary biology, has plenty to say about.
There is a practical element too: advice on how to avoid the many illnesses that come with having our various microbiomes (it’s not just the gut!) out of balance, and how to keep everything working together as a team.
The style is quite light pop-science and, once we get past the first chapter (which is about the history of the field), quite a pleasant read as Dr. Collen has an enjoyable and entertaining tone.
Bottom line: if you’d like to understand more about all the things that come together to make us functionally 100% human, then this book is an excellent guide to that.
Click here to check out 10% Human, and learn about how we interact with ourselves!
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Bath vs Shower – Which is Healthier?
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Our Verdict
When comparing bathing to showering, we picked the shower.
Why?
For the basic task of getting your body clean, the shower is better as it is an entirely one-way process. Clean water hits your body, dirty water leaves it, and no dirt is making its way back.
Baths do not have this advantage, and if you enter a bath dirty, you will then be sitting in dirty water. You will leave it a lot cleaner than you entered it (because a lot of the dirt stayed in the bathwater to be drained away after the bath), but not as clean as if you had showered.
One could argue soap or equivalent will prevent the dirt re-sticking, and that’s true, but it’s true for soap in the shower too, so it doesn’t offset anything.
Additionally, being immersed in water for more than 15 minutes can start to have a (paradoxically) dehydrating effect on the skin; this happens not only because of losing skin oils to the water, but also because of osmosis, the resultant mild edema, the body’s homeostatic response to the mild edema, then getting out the bath and drying, leaving one with the response having now just caused dehydrated skin.
Baths do have some health advantages! And these come primarily from the mental health benefits of relaxation in warm water and/or generally pampering oneself. Additionally, some bath oils or bath salts can be beneficial in a way that couldn’t be administered the same way in the shower.
Best of both worlds?
In some parts of the world (Thailand and Turkey come to mind; doubtlessly there are many others) there are traditions of first taking a shower to get clean, and then taking a bath for the rest of the bathing experience. As a bonus, the bathing experience is then all the more pleasant for the water remaining just as clean as it was to start with.
However, if you do have to pick one (and for the purpose of our “This or That” exercise, we do), then it’s the shower, hands-down.
Want to read more?
You might want to also take into account how it’s still possible to have too much of a good thing:
Enjoy!
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