
Make Your Coffee Heart-Healthier!
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Health-Hack Your Coffee
We have previously written about the general health considerations (benefits and potential problems) of coffee:
The Bitter Truth About Coffee (or is it?)
Today, we will broadly assume that you are drinking coffee (in general, not necessarily right now, though if you are, same!) and would like to continue to do so. We also assume you’d like to do so as healthily as possible.
Not all coffees are created equal
If you order a coffee in France or Italy without specifying what kind, the coffee you receive will be short, dark, and handsome and without sugar. Healthwise, this is not a bad starting point. However…
- It will usually be espresso
- Or it may be what in N. America is called a French press (in Europe it’s just called a cafetière)
Both of these kinds of coffee mean that cafestol, a compound found in the oily part of coffee and which is known to raise LDL (“bad” cholesterol”), stays in the drink.
Read: Cafestol and Kahweol: A Review on Their Bioactivities and Pharmacological Properties
Also: Cafestol extraction yield from different coffee brew mechanisms
If you’re reading that second one and wondering what a mocha pot or a Turkish coffee is, they are these things:
- Mocha pot: a stovetop device used for making espresso without an espresso machine
- Turkish coffee pot: also a stovetop device; this thing makes some of the strongest coffee you have ever encountered. Turks usually add sugar (this writer doesn’t; but my taste in coffee been described as “coffee like a punch in the face”)
So, wonderful as they are for those of us who love strong coffee, they also produce the highest in-drink levels of cafestol. If you’d like to cut the cafestol (for example, if you are keeping an eye on your LDL), we recommend…
The humble filter coffee
Whether by your favorite filter coffee machine or a pour-over low-tech coffee setup of the kind you could use even without an electricity supply, the filter keeps more than just the coffee grinds out; it keeps the cafestol out too; most of it, anyway, depending on what kind of filter you use, and the grind of the coffee:
Physical characteristics of the paper filter and low cafestol content filter coffee brews
What about instant coffee?
It has very little cafestol in it. It’s up to you whether that’s sufficient reason to choose it over any other form of coffee (this coffee-lover could never)
Want to make any coffee healthier?
This one isn’t about the cafestol, but…
If you take l-theanine (see here for our previous main feature about l-theanine), the l-theanine acts as a moderator and modulator of the caffeine, amongst other benefits:
The Cognitive-Enhancing Outcomes of Caffeine and L-theanine: A Systematic Review
As to where to get that, we don’t sell it, but here’s an example product on Amazon
Enjoy!
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Why Your Brain Blinds You For 2 Hours Every Day
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…and then covers its tracks so that you don’t notice:
Now you see it…
The world you experience is not an accurate representation of reality. Your brain actively constructs your perception, editing your memories as they happen and manipulating your sense of time. What you perceive as the present moment is actually a processed and reconstructed version of past events.
Nor is your vision anywhere near as detailed as it seems. Only a small central portion is in high resolution, while the rest is blurry. Your brain compensates for this by filling in the gaps with its best guess and/or what it believes is there from the last time you saw it. Your eyes constantly make rapid movements called saccades, and during these (i.e. when your eyes are moving), your vision momentarily shuts down—making you effectively blind for (in total, if we add them all up) about two hours every day (according to this video, anyway; our calculations find it to be more than that, but you get the idea). Your brain stitches together the visual input, creating a seamless experience that feels continuous (much like an animation reel composed of still images).
Why does it do this?
It’s because your senses operate at different speeds—light reaches your eyes in nanoseconds, sound in milliseconds, and touch signals in tens of milliseconds. However, your brain processes these inputs together, creating the illusion of a smooth and simultaneous experience. In reality, what you perceive as the present is actually a delayed and selectively edited version of the past.
Instead of showing you the world as it is, your brain predicts what will happen next. In high-speed situations, such as playing table tennis, if your brain relied on past sensory data, you wouldn’t react in time. Instead, it estimates an object’s future position and presents that prediction as your visual reality.
This also means that because your brain effectively sees things slightly sooner than you do, your brain has already prepared multiple possible responses and when an event occurs, it quickly selects the most likely course of action, deleting the alternatives before you are even aware of them. By the time you think you’ve made a decision, your body has already acted.
This goes for more than just the things we think of as requiring quick reactions!
Walking is a complex task that involves multiple time layers—your brain processes past feedback, assesses your current state, and predicts future movements. That’s why it was something that cyberneticists found difficult to recreate for a very long time. If something unexpected happens, like slipping cartoon-style on a banana peel, your body reacts before you consciously notice the danger. Your spinal cord and brainstem trigger emergency reflexes to stabilize you before your conscious mind even catches up.
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like:
This Main Feature Should Take You Two Minutes (and 18 Seconds) To Read ← There’s a problem nobody wants to talk about when it comes to speed-reading; can you guess what it is based on what we just talked about above?
Take care!
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Natto vs Tofu – Which is Healthier?
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Our Verdict
When comparing nattō to tofu, we picked the nattō.
Why?
In other words, in the comparison of fermented soy to fermented soy, we picked the fermented soy. But the relevant difference here is that nattō is fermented whole soybeans, while tofu is fermented soy milk of which the coagulated curds are then compressed into a block—meaning that the nattō is the one that has “more food per food”.
Looking at the macros, it’s therefore no surprise that nattō has a lot more fiber to go with its higher carb count; it also has slightly more protein. You may be wondering what tofu has more of, and the answer is: water.
In terms of vitamins, nattō has more of vitamins B2, B4, B6, C, E, K, and choline, while tofu has more of vitamins A, B3, and B9. So, a 7:3 win for nattō, even before considering that that vitamin C content of nattō is 65x more than what tofu has.
When it comes to minerals, nattō has more copper, iron, magnesium, manganese, potassium, and zinc, while tofu has more calcium, phosphorus, and selenium. So, a 6:3 win for nattō, and yes, the margins of difference are comparable (being 2–3x more for most of these minerals).
In short, both of these foods are great, but nattō is better.
Want to learn more?
You might like to read:
21% Stronger Bones in a Year at 62? Yes, It’s Possible (No Calcium Supplements Needed!)
Take care!
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Wildfires ignite infection risks, by weakening the body’s immune defences and spreading bugs in smoke
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Over the past several days, the world has watched on in shock as wildfires have devastated large parts of Los Angeles.
Beyond the obvious destruction – to landscapes, homes, businesses and more – fires at this scale have far-reaching effects on communities. A number of these concern human health.
We know fire can harm directly, causing injuries and death. Tragically, the death toll in LA is now at least 24.
But wildfires, or bushfires, can also have indirect consequences for human health. In particular, they can promote the incidence and spread of a range of infections.
Effects on the immune system
Most people appreciate that fires can cause burns and smoke inhalation, both of which can be life-threatening in their own right.
What’s perhaps less well known is that both burns and smoke inhalation can cause acute and chronic changes in the immune system. This can leave those affected vulnerable to infections at the time of the injury, and for years to come.
Burns induce profound changes in the immune system. Some parts go into overdrive, becoming too reactive and leading to hyper-inflammation. In the immediate aftermath of serious burns, this can contribute to sepsis and organ failure.
Other parts of the immune system appear to be suppressed. Our ability to recognise and fight off bugs can be compromised after sustaining burns. Research shows people who have experienced serious burns have an increased risk of influenza, pneumonia and other types of respiratory infections for at least the first five years after injury compared to people who haven’t experienced burns.
Wildfire smoke is a complex mixture containing particulate matter, volatile organic compounds, ozone, toxic gases, and microbes. When people inhale smoke during wildfires, each of these elements can play a role in increasing inflammation in the airways, which can lead to increased susceptibility to respiratory infections and asthma.
Research published after Australia’s Black Summer of 2019–20 found a higher risk of COVID infections in areas of New South Wales where bushfires had occurred weeks earlier.
We need more research to understand the magnitude of these increased risks, how long they persist after exposure, and the mechanisms. But these effects are thought to be due to sustained changes to the immune response.
Microbes travel in smoky air
Another opportunity for infection arises from the fire-induced movement of microbes from niches they usually occupy in soils and plants in natural areas, into densely populated urban areas.
Recent evidence from forest fires in Utah shows microbes, such as bacteria and fungal spores, can be transported in smoke. These microbes are associated with particles from the source, such as burned vegetation and soil.
There are thousands of different species of microbes in smoke, many of which are not common in background, non-smoky air.
Only a small number of studies on this have been published so far, but researchers have shown the majority of microbes in smoke are still alive and remain alive in smoke long enough to colonise the places where they eventually land.
How far specific microbes can be transported remains an open question, but fungi associated with smoke particles have been detected hundreds of miles downwind from wildfires, even weeks after the fire.
So does this cause human infections?
A subset of these airborne microbes are known to cause infections in humans.
Scientists are probing records of human fungal infections in relation to wildfire smoke exposure. In particular, they’re looking at soil-borne infectious agents such as the fungi Coccidioides immitis and Coccidioides posadasii which thrive in dry soils that can be picked up in dust and smoke plumes.
These fungi cause valley fever, a lung infection with symptoms that can resemble the flu, across arid western parts of the United States.
A study of wildland firefighters in California showed high rates of valley fever infections, which spurred occupational health warnings including recommended use of respirators when in endemic regions.
A California-based study of the wider population showed a 20% increase in hospital admissions for valley fever following any amount of exposure to wildfire smoke.
However, another found only limited evidence of excess cases after smoke exposure in wildfire-adjacent populations in California’s San Joaquin Valley.
These contrasting results show more research is needed to evaluate the infectious potential of wildfire smoke from this and other fungal and bacterial causes.
Staying safe
Much remains to be learned about the links between wildfires and infections, and the multiple pathways by which wildfires can increase the risk of certain infections.
There’s also a risk people gathering together after a disaster like this, such as in potentially overcrowded shelters, can increase the transmission of infections. We’ve seen this happen after previous natural disasters.
Despite the gaps in our knowledge, public health responses to wildfires should encompass infection prevention (such as through the provision of effective masks) and surveillance to enable early detection and effective management of any outbreaks.
Christine Carson, Senior Research Fellow, School of Medicine, The University of Western Australia and Leda Kobziar, Professor of Wildland Fire Science, University of Idaho
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Other Circadian Rhythms
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We’ve talked before about how circadian rhythm pertains not just to when it is ideal for us to sleep or be awake, but also at what times it is best to eat, exercise, and so forth:
The Circadian Rhythm: Far More Than Most People Know
Most people just know about the light consideration, per for example:
- How light can shift your mood and mental health, and
- How light tells you when to sleep, focus and poo
When your body parts clock on and off at the wrong time…
Now, new research has brought attention to how these things and more are governed by different physiological clocks within our bodies—and what this means for our health. In other words, if you are doing the various things at different times than you “should”, you will be training the different parts of your body (each with their independent clocks) to be on a different schedule, and so the different parts of your body will out of temporal sync with each other.
To put this in jet-lag terms: if your brain is in New York, while your heart is in Istanbul (not Constantinople) and your gut is in Tokyo, then this arrangement is not good for the health.
As for how it is not good for your health (i.e. the consequences) there’s still research to be done on some of the longer-term implications, but in the short term, one of the biggest effects is on our mood—most notably, increasing depression scores significantly.
And even more importantly, this is in the real world. That is to say, until quite recently, most data we had from studies on the circadian rhythm was from sleep clinic laboratories, which is great for RCTs but will always have as a limitation that someone sleeping in a lab is going to have some differences than someone sleeping in their own bed at home.
As the researchers said:
❝A critical step to addressing this is the noninvasive collection of physiological time-series data outside laboratory settings in large populations. Digital tools offer promise in this endeavor. Here, using wearable data, we first quantify the degrees of circadian disruption, both between different internal rhythms and between each internal rhythm and the sleep-wake cycle. Our analysis, based on over 50,000 days of data from over 800 first-year training physicians, reveals bidirectional links between digital markers of circadian disruption and mood both before and after they began shift work, while accounting for confounders such as demographic and geographic variables. We further validate this by finding clinically relevant changes in the 9-item Patient Health Questionnaire score.❞
Read in full: The real-world association between digital markers of circadian disruption and mental health risks
That questionnaire by the way sounds like an arbitrary thing they just made up, but the PHQ-9 (as it is known to its friends) is in fact the current intentional gold standard for measuring depression; we share it at the top of our article about depression, here:
The Mental Health First-Aid That You’ll Hopefully Never Need ← the test takes 2 minutes and you get immediate results
Want to know more?
For more about getting one’s entire self back into temporal sync (hey, wasn’t that the plot of a Star Trek episode?), sleep specialist Dr. Michael Breus wrote this excellent book that we reviewed a little while back:
Enjoy!
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‘Emergency’ or Not, Covid Is Still Killing People. Here’s What Doctors Advise to Stay Safe.
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With around 20,000 people dying of covid in the United States since the start of October, and tens of thousands more abroad, the covid pandemic clearly isn’t over. However, the crisis response is, since the World Health Organization and the Biden administration ended their declared health emergencies last year.
Let’s not confuse the terms “pandemic” and “emergency.” As Abraar Karan, an infectious disease physician and researcher at Stanford University, said, “The pandemic is over until you are scrunched in bed, feeling terrible.”
Pandemics are defined by neither time nor severity, but rather by large numbers of ongoing infections worldwide. Emergencies are acute and declared to trigger an urgent response. Ending the official emergency shifted the responsibility for curbing covid from leaders to the public. In the United States, it meant, for example, that the government largely stopped covering the cost of covid tests and vaccines.
But the virus is still infecting people; indeed, it is surging right now.
With changes in the nature of the pandemic and the response, KFF Health News spoke with doctors and researchers about how to best handle covid, influenza, and other respiratory ailments spreading this season.
A holiday wave of sickness has ensued as expected. Covid infections have escalated nationwide in the past few weeks, with analyses of virus traces in wastewater suggesting infection rates as high as last year’s. More than 73,000 people died of covid in the U.S. in 2023, meaning the virus remains deadlier than car accidents and influenza. Still, compared with last year’s seasonal surge, this winter’s wave of covid hospitalizations has been lower and death rates less than half.
“We’re seeing outbreaks in homeless shelters and in nursing homes, but hospitals aren’t overwhelmed like they have been in the past,” said Salvador Sandoval, a doctor and health officer at the Merced County public health department in California. He attributes that welcome fact to vaccination, covid treatments like Paxlovid, and a degree of immunity from prior infections.
While a new coronavirus variant, JN.1, has spread around the world, the current vaccines and covid tests remain effective.
Other seasonal illnesses are surging, too, but rates are consistent with those of previous years. Between 9,400 and 28,000 people died from influenza from Oct. 1 to Jan. 6, estimates the Centers for Disease Control and Prevention, and millions felt so ill from the flu that they sought medical care. Cases of pneumonia — a serious condition marked by inflamed lungs that can be triggered by the flu, covid, or other infections — also predictably rose as winter set in. Researchers are now less concerned about flare-ups of pneumonia in China, Denmark, and France in November and December, because they fit cyclical patterns of the pneumonia-causing bacteria Mycoplasma pneumoniae rather than outbreaks of a dangerous new bug.
Public health researchers recommend following the CDC guidance on getting the latest covid and influenza vaccines to ward off hospitalization and death from the diseases and reduce chances of getting sick. A recent review of studies that included 614,000 people found that those who received two covid vaccines were also less likely to develop long covid; often involving fatigue, cognitive dysfunction, and joint pain, the condition is marked by the development or continuation of symptoms a few months after an infection and has been debilitating for millions of people. Another analysis found that people who had three doses of covid vaccines were much less likely to have long covid than those who were unvaccinated. (A caveat, however, is that those with three doses might have taken additional measures to avoid infections than those who chose to go without.)
It’s not too late for an influenza vaccine, either, said Helen Chu, a doctor and epidemiologist at the University of Washington in Seattle. Influenza continues to rise into the new year, especially in Southern states and California. Last season’s shot appeared to reduce adults’ risk of visits to the emergency room and urgent care by almost half and hospitalization by more than a third. Meanwhile, another seasonal illness with a fresh set of vaccines released last year, respiratory syncytial virus, appears to be waning this month.
Another powerful way to prevent covid, influenza, common colds, and other airborne infections is by wearing an N95 mask. Many researchers say they’ve returned to socializing without one but opt for the masks in crowded, indoor places when wearing one would not be particularly burdensome. Karan, for example, wears his favorite N95 masks on airplanes. And don’t forget good, old-fashioned hand-washing, which helps prevent infections as well.
If you do all that and still feel sick? Researchers say they reach for rapid covid tests. While they’ve never been perfect, they’re often quite helpful in guiding a person’s next steps.
When President Joe Biden declared the end of the public health emergency last year, many federally funded testing sites that sent samples to laboratories shut their doors. As a result, people now mainly turn to home covid tests that signal an infection within 15 minutes and cost around $6 to $8 each at many pharmacies. The trick is to use these tests correctly by taking more than one when there’s reason for concern. They miss early infections more often than tests processed in a lab, because higher levels of the coronavirus are required for detection — and the virus takes time to multiply in the body. For this reason, Karan considers other information. “If I ran into someone who turned out to be sick, and then I get symptoms a few days later,” he said, “the chance is high that I have whatever they had, even if a test is negative.”
A negative result with a rapid test might mean simply that an infection hasn’t progressed enough to be detected, that the test had expired, or that it was conducted wrong. To be sure the culprit behind symptoms like a sore throat isn’t covid, researchers suggest testing again in a day or two. It often takes about three days after symptoms start for a test to register as positive, said Karan, adding that such time estimates are based on averages and that individuals may deviate from the norm.
If a person feels healthy and wants to know their status because they were around someone with covid, Karan recommends testing two to four days after the exposure. To protect others during those uncertain days, the person can wear an N95 mask that blocks the spread of the virus. If tests remain negative five days after an exposure and the person still feels fine, Chu said, they’re unlikely to be infected — and, if they are, viral levels would be so low that they would be unlikely to pass the disease to others.
Positive tests, on the other hand, reliably flag an infection. In this case, people can ask a doctor whether they qualify for the antiviral drug Paxlovid. The pills work best when taken immediately after symptoms begin so that they slash levels of the virus before it damages the body. Some studies suggest the medicine reduces a person’s risk of long covid, too, but the evidence is mixed. Another note on tests: Don’t worry if they continue to turn out positive for longer than symptoms last; the virus may linger even if it’s no longer replicating. After roughly a week since a positive test or symptoms, studies suggest, a person is unlikely to pass the virus to others.
If covid is ruled out, Karan recommends tests for influenza because they can guide doctors on whether to prescribe an antiviral to fight it — or if instead it’s a bacterial infection, in which case antibiotics may be in order. (One new home test diagnoses covid and influenza at the same time.) Whereas antivirals and antibiotics target the source of the ailment, over-the-counter medications may soothe congestion, coughs, fevers, and other symptoms. That said, the FDA recently determined that a main ingredient in versions of Sudafed, NyQuil, and other decongestants, called phenylephrine, is ineffective.
Jobs complicate a personal approach to staying healthy. Emergency-era business closures have ended, and mandates on vaccination and wearing masks have receded across the country. Some managers take precautions to protect their staff. Chu, for example, keeps air-purifying devices around her lab, and she asks researchers to stay home when they feel sick and to test themselves for covid before returning to work after a trip.
However, occupational safety experts note that many employees face risks they cannot control because decisions on if and how to protect against outbreaks, such as through ventilation, testing, and masking, are left to employers. Notably, people with low-wage and part-time jobs — occupations disproportionately held by people of color — are often least able to control their workplace environments.
Jessica Martinez, co-executive director of the National Council for Occupational Safety and Health, said the lack of national occupational standards around airborne disease protection represents a fatal flaw in the Biden administration’s decision to relinquish its control of the pandemic.
“Every workplace needs to have a plan for reducing the threat of infectious disease,” she said. “If you only focus on the individual, you fail workers.”
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
Subscribe to KFF Health News’ free Morning Briefing.
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Hormone Replacement
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It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
❝I cant believe 10 Almonds addresses questions. Thanks. I see the word symptoms for menopause. I don’t know what word should replace it but maybe one should be used or is symptom accurate? And I recently read that there was a great disservice for women in my era as they were denied/scared of hormones replacement. Unnecessarily❞
You’d better believe it! In fact we love questions; they give us things to research and write about.
“Symptom” is indeed an entirely justified word to use, being:
- General: any phenomenon or circumstance accompanying something and serving as evidence of it.
- Medical: any phenomenon that arises from and accompanies a particular disease or disorder and serves as an indication of it.
If the question is more whether the menopause can be considered a disease/disorder, well, it’s a naturally occurring and ultimately inevitable change, yes, but then, so is cancer (it’s in the simple mathematics of DNA replication and mutation that, unless a cure for cancer is found, we will always eventually get cancer, if nothing else kills us first).
So, something being natural/inevitable isn’t a reason to not consider it a disease/disorder, nor a reason to not treat it as appropriate if it is causing us harm/discomfort that can be safely alleviated.
Moreover, and semantics aside, it is medical convention to consider menopause to be a medical condition, that has symptoms. Indeed, for example, the US’s NIH (and its constituent NIA, the National Institute of Aging) and the UK’s NHS, both list the menopause’s symptoms, using that word:
- NIA (NIH): What are the signs and symptoms of menopause?
- NHS: Common symptoms of menopause and perimenopause
With regard to fearmongering around HRT, certainly that has been rife, and there were some very flawed (and later soundly refuted) studies a while back that prompted this—and even those flawed studies were not about the same (bioidentical) hormones available today, in any case. So even if they had been correct (they weren’t), it still wouldn’t be a reason to not get treatment nowadays, if appropriate!
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