All of your hepatitis B vaccine questions answered
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Hepatitis B is a viral infection that can cause liver disease in people of any age or background. Vaccination is 95 percent effective against the virus. But in recent years, false claims, rumors, and myths about the hepatitis B vaccine have become increasingly common.
Here’s everything you need to know about the lifesaving hepatitis B vaccine.
What is hepatitis B?
Hepatitis B is a liver infection caused by the hepatitis B virus. The virus attacks the liver, causing severe short-term and long-term infections.
Short-term hepatitis B infections may cause “fever, fatigue, loss of appetite, nausea, vomiting, jaundice (yellow skin or eyes, dark urine, clay-colored bowel movements), and pain in the muscles, joints, and stomach,” according to the Centers for Disease Control and Prevention.
A long-term hepatitis B infection occurs when the virus stays in the body beyond the initial infection, causing chronic illness. Hepatitis B infections become chronic in 90 percent of infected infants, half of infected young children, and between 5 to 10 percent of infected adults.
“Most people who go on to develop chronic hepatitis B do not have symptoms, but it is still very serious and can lead to liver damage (cirrhosis), liver cancer, and death. Chronically infected people can spread hepatitis B virus to others, even if they do not feel or look sick themselves,” says the CDC.
How does the hepatitis B virus spread?
The hepatitis B virus is spread through body fluids, including blood, semen, and saliva. It can also be transmitted from birthing parent to child during pregnancy and childbirth.
“While hepatitis B is an infection that lives in bodily fluids, it can survive outside the human body for several days, which means that sharing contaminated household products is a possible source of infection,” said Dr. Christopher Labos, a McGill University cardiologist and epidemiologist, in a 2019 article.
In 2022, over 250 million people worldwide had chronic hepatitis B, and 1.1 million died from the disease. Most of the deaths were from liver damage and liver cancer. Less than 15 percent of people living with hepatitis B have been diagnosed.
How well does the vaccine protect against hepatitis B?
Hepatitis B vaccination is up to 95 percent effective, providing lasting—and possibly lifelong—protection against the virus. Depending on when the first dose is given, the complete vaccine series consists of two to three doses.
The vaccine is most effective for infants and children. The CDC recommends that infants receive it at birth for the most protection.
The first dose is followed by two to three additional doses administered before 18 months. Children, adolescents, and adults who weren’t vaccinated as infants should also receive the vaccine.
Vaccination is particularly important for high-risk groups, including health workers and those who are in close contact with individuals living with chronic hepatitis B, people who use intravenous drugs, and people receiving blood transfusions, dialysis, or organ transplants.
Is the vaccine safe?
Vaccines against hepatitis B were first developed in the 1980s, and they have been proven safe for decades. They have a low risk of serious side effects and are safe enough to be given to newborns, pregnant people, and immunocompromised people.
We also know hepatitis B vaccines work: “Between 1990 (about the time when universal hepatitis B vaccinations started) and 2006, the rate of hepatitis B infection fell by 81 percent to the lowest level ever recorded, and the decline was greatest among children,” added Labos.
Hepatitis B rates have continued to decline across all age groups, with the U.S. exceeding its goal of reducing new hepatitis B infections by 20 percent.
Why do doctors recommend the vaccine for babies?
Hepatitis B vaccination helps protect infants from a lifetime of potentially life-threatening infections and complications. Nine out of 10 unvaccinated infants infected with hepatitis B will develop chronic infections, which increases their risk of liver failure and liver cancer.
The hepatitis B vaccine is administered at birth to help prevent the virus from being transmitted from birthing parent to child. It also helps protect infants who might be in close contact with someone with hepatitis B. This is particularly important because most people who have hepatitis are undiagnosed.
Have more questions? Talk to your health care provider to learn more about hepatitis B vaccination.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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How To Kill Laziness
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Laziness Is A Scooby-Doo Villain.
Which means: to tackle it requires doing a Scooby-Doo unmasking.
You know, when the mystery-solving gang has the “ghost” or “monster” tied to a chair, and they pull the mask off, to reveal that there was no ghost etc, and in fact it was a real estate scammer or somesuch.
Social psychologist Dr. Devon Price wrote about this (not with that metaphor though) in a book we haven’t reviewed yet, but will one of these days:
Laziness Does Not Exist – by Dr. Devon Price (book)
In the meantime, and perhaps more accessibly, he gave a very abridged summary for Medium:
Medium | Laziness Does Not Exist… But unseen barriers do (11mins read)
Speaking of barriers, Medium added a paywall to that (the author did not, in fact, arrange the paywall as Medium claim), so in case you don’t have an account, he kindly made the article free on its own website, here:
Devon Price | Laziness Does Not Exist… But unseen barriers do (same article; no paywall)
He details problems that people get into (ranging from missed deadlines to homelessness), that are easily chalked up to laziness, but in fact, these people are not lazily choosing to suffer, and are usually instead suffering from all manner of unchosen things, ranging from…
- imposter syndrome / performance anxiety,
- perfectionism (which can overlap a lot with the above),
- social anxiety and/or depression (these also can overlap for some people),
- executive dysfunction in the brain, and/or
- just plain weathering “the slings and arrows of outrageous fortune [and] the heartache and the thousand natural shocks that flesh is heir to”, to borrow from Shakespeare, in ways that aren’t always obviously connected—these things can be great or small, it could be a terminal diagnosis of some terrible disease, or it could be a car breakdown, but the ripples spread.
And nor are you, dear reader, choosing to suffer (even if sometimes it appears otherwise)
Unless you’re actually a masochist, at least, in which case, you do you. But for most of us, what can look like laziness or “doing it to oneself” is usually a case of just having one or more of the above-mentioned conditions in place.
Which means…
That grace we just remembered above to give to other people?
Yep, we should give that to ourselves too.
Not as a free pass, but in the same way we (hopefully) would with someone else, and ask: is there some problem I haven’t considered, and is there something that would make this easier?
Here are some tools to get you started:
- Imposter Syndrome (And Why Almost Everyone Has It)
- Perfectionism, And How To Make Yours Work For You
- How To Set Anxiety Aside
- Mental Health First-Aid (To Get Yourself Or A Loved One Through Depression)
- Procrastination, And How To Pay Off The To-Do List Debt
- Take This Two-Minute Executive Dysfunction Test
Take care!
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Does This New Machine Cure Depression?
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Let us first talk briefly about the slightly older tech that this may replace, transcranial magnetic stimulation (TMS).
TMS involves electromagnetic fields to stimulate the left half of the brain and inhibit the right half of the brain. It sounds like something from the late 19th century—“cure your melancholy with the mystical power of magnetism”—but the thing is, it works:
The main barriers to its use are that the machine itself is expensive, and it has to be done in a clinic by a trained clinician. Which, if it were treating one’s heart, say, would not be so much of an issue, but when treating depression, there is a problem that depressed people are not the most likely to commit to (and follow through with) going somewhere probably out-of-town regularly to get a treatment, when merely getting out of the door was already a challenge and motivation is thin on the ground to start with.
Thus, antidepressant medications are more often the go-to for cost-effectiveness and adherence. Of course, some will work better than others for different people, and some may not work at all in the case of what is generally called “treatment-resistant depression”:
Antidepressants: Personalization Is Key!
Transcranial stimulation… At home?
Move over transcranial magnetic stimulation; it’s time for transcranial direct-current stimulation (tDCS).
First, what it’s not: electroconvulsive therapy (ECT). Rather, it uses a very low current.
What it is: a small and portable headset (as opposed to the big machine to go sit in for TMS) that one can use at home. Here’s an example product on Amazon, though there are more stylish versions around, this is the same basic technology.
In a recent study, 45% of those who received treatment with this device experienced remission in 10 weeks, significantly beating placebo (bearing in mind that placebo effect is strongest when it comes to invisible ailments such as depression).
See also: How To Leverage Placebo Effect For Yourself ← this explains more about how the placebo effect works, to the extent that it can even be an adjuvant tool to augment “real” therapies
And as for the study, here it is:
…which rather cuts through the “depressed people don’t make it to the clinic consistently, if at all” problem. Of course, it still requires adherence to its use at home, for example three 30-minute sessions per week, but honestly, “lie/sit still” is likely within the abilities of the majority of depressed people. However…
Important note: you remember we said “in 10 weeks”? That may be critical, because shorter studies (e.g. 6 weeks) have previously returned without such glowing results:
Home-Use Transcranial Direct Current Stimulation for the Treatment of a Major Depressive Episode
This means that if you get this tech for yourself or a loved one, it’ll be necessary to persist for likely 10 weeks, certainly more than 6 weeks, and not abandon it after a few sessions when it hasn’t been life-changing yet. And that may be more of a challenge for a depressed person, so likely an “accountability buddy” of some kind is in order (partner, close friend, etc) to help ensure adherence and generally bug you/them into doing it consistently.
And then, of course, you/they might still be in the 55% of people for whom it didn’t work. And that does suck, but random antidepressant medications (i.e., not personalized) don’t fare much better, statistically.
Want something else against depression meanwhile?
Here are some strategies that not only can significantly help, but also are tailored to be actually doable while depressed:
The Mental Health First-Aid You’ll Hopefully Never Need ← written by your writer who has previously suffered extensively from depression and knows what it is like
Take care!
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The Five Pillars Of Longevity
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The Five Pillars Of Longevity
This is Dr. Mark Hyman. He’s a medical doctor, and he’s the board president of clinical affairs of the Institute for Functional Medicine. He’s also the founder and medical director of the UltraWellness Center!
What he’d like you to know about is what he calls the “Five Pillars of Longevity”.
Now, here at 10almonds, we often talk about certain things that science finds to be good for almost any health condition, and have made a habit of referencing what we call “The Usual Five Things™” (not really a trademark, by the way—just a figure of speech), which are:
- Have a good diet
- Get good exercise
- Get good sleep
- Reduce (or eliminate) alcohol consumption
- Don’t smoke
…and when we’re talking about a specific health consideration, we usually provide sources as to why each of them are particularly relevant, and pointers as to the what/how associated with them (ie what diet is good, how to get good sleep, etc).
Dr. Hyman’s “Five Pillars of Longevity” are based on observations from the world’s “Blue Zones”, the popular name for areas with an unusually high concentration of supercentenarians—Sardinia and Okinawa being famous examples, with a particular village in each being especially exemplary.
These Five Pillars of Longevity partially overlap with ours for three out of five, and they are:
- Good nutrition
- Optimized workouts
- Reduce stress
- Get quality sleep
- Find (and live) your purpose
We won’t argue against those! But what does he have to say, for each of them?
Good nutrition
Dr. Hyman advocates for a diet he calls “pegan”, which he considers to combine the paleo and vegan diets. Here at 10almonds, we generally advocate for the Mediterranean Diet because of the mountains of evidence for it, but his approach may be similar in some ways, since it looks to consume a majority plant diet, with some unprocessed meats/fish, limited dairy, and no grains.
By the science, honestly, we stand by the Mediterranean (which includes whole grains), but if for example your body may have issues of some kind with grains, his approach may be a worthy consideration.
Optimized workouts
For Dr. Hyman, this means getting in three kinds of exercise regularly:
- Aerobic/cardio, to look after your heart health
- Resistance training (e.g. weights or bodyweight strength-training) to look after your skeletal and muscular health
- Yoga or similar suppleness training, to look after your joint health
Can’t argue with that, and it can be all too easy to fall into the trap of thinking “I’m healthy because I do x” while forgetting y and/or z! Thus, a three-pronged approach definitely has its merits.
Reduce stress
Acute stress (say, a cold shower) is can confer some health benefits, but chronic stress is ruinous to our health and it ages us. So, reducing this is critical. Dr. Hyman advocates for the practice of mindfulness and meditation, as well as journaling.
Get quality sleep
Quality here, not just quantity. As well as the usual “sleep hygiene” advices, he has some more unorthodox methods, such as the use of binaural beats to increase theta-wave activity in the brain (and thus induce more restful sleep), and the practice of turning off Wi-Fi, on the grounds that Wi-Fi signals interfere with our sleep.
We were curious about these recommendations, so we checked out what the science had to say! Here’s what we found:
- Minimal Effects of Binaural Auditory Beats for Subclinical Insomnia: A Randomized Double-Blind Controlled Study
- Spending the night next to a router – Results from the first human experimental study investigating the impact of Wi-Fi exposure on sleep
In short: probably not too much to worry about in those regards. On the other hand, worrying less, unlike those two things, is a well-established way improve sleep!
(Surprised we disagreed with our featured expert on a piece of advice? Please know: you can always rely on us to stand by what the science says; we pride ourselves on being as reliable as possible!)
Find (and live!) your purpose
This one’s an ikigai thing, to borrow a word from Japanese, or finding one’s raison d’être, as we say in English using French, because English is like that. It’s about having purpose.
Dr. Hyman’s advice here is consistent with what many write on the subject, and it’d be an interesting to have more science on, but meanwhile, it definitely seems consistent with commonalities in the Blue Zone longevity hotspots, where people foster community, have a sense of belonging, know what they are doing for others and keep doing it because they want to, and trying to make the world—or even just their little part of it—better for those who will follow.
Being bitter, resentful, and self-absorbed is not, it seems a path to longevity. But a life of purpose, or even just random acts of kindness, may well be.
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Death by Sitting – by Carolyne Thompson
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You may be wondering: is this a lot of words to say “sit down less”?
And the answer is: there’s a lot more in here than that. Of course, yes, “sit down less” is an important take-away, but there’s a lot about the specific problems caused by sitting in chairs, the health risks are that are increased and how, and the early warning signs to watch out for.
After these chapters of woe, most of the book is given over to solutions; about taking standing and walking breaks, tying movement to productivity, why exercise alone is not enough to offset the damage of sitting, relearning ergonomic posture in the context of mitigating the harm, psychological shifts to break the habit of sitting, redefining social norms around sitting and socializing, rewiring one’s body and retraining better movements as well as postures to always immediately move out of if one finds oneself in, and much much more.
The style is light and easy to read, while still including scientific research as appropriate along with practical, actionable advice.
Bottom line: if you’d like to do better for your body than slowly killing it for however many hours a day, then this book has a wealth of advice far beyond the obvious (but important!) “sit less”.
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“The Longevity Vitamin” (That’s Not A Vitamin)
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The Magic of Mushrooms
“The Longevity Vitamin that’s not a vitamin” is a great tagline for what’s actually an antioxidant amino acid nutraceutical, but in this case, we’re not the ones spearheading its PR, but rather, the Journal of Nutritional Science:
Is ergothioneine a “longevity vitamin” limited in the American diet?
It can be found in all foods, to some extent, but usually in much tinier amounts than would be useful. The reason for this is that it’s synthesized by a variety of microbes (mostly fungi and actinobacteria), and enters the food chain via vegetables that are grown in soil that contain such (which is basically all soil, unless you were to go out of your way to sterilize it, or something really unusually happened).
About those fungi? That includes common popular edible fungi, where it is found quite generously. An 85g (3oz) portion of (most) mushrooms contains about 5mg of ergothioneine, the consumption of which is associated with a 16% reduced all-cause mortality:
However… Most Americans don’t eat that many mushrooms, and those polled averaged 1.1mg/day ergothioneine (in contrast with, for example, Italians’ 4.6mg/day average).
Antioxidant properties
While its antioxidant properties aren’t the most exciting quality, they are worth a mention, on account of their potency:
The biology of ergothioneine, an antioxidant nutraceutical
This is also part of its potential bid to get classified as a vitamin, because…
❝Decreased blood and/or plasma levels of ergothioneine have been observed in some diseases, suggesting that a deficiency could be relevant to the disease onset or progression❞
Source: Ergothioneine: a diet-derived antioxidant with therapeutic potential
Healthy aging
Building on from the above, ergothioneine has been specifically identified as being associated with healthy aging and the prevention of cardiometabolic diseases:
❝An increasing body of evidence suggests ergothioneine may be an important dietary nutrient for the prevention of a variety of inflammatory and cardiometabolic diseases and ergothioneine has alternately been suggested as a vitamin, “longevity vitamin”, and nutraceutical❞
~ Dr. Bernadette Moore et al., citing more references every few words there
Source: Ergothioneine: an underrecognised dietary micronutrient required for healthy ageing?
Good for the heart = good for the brain
As a general rule of thumb, “what’s good for the heart is good for the brain” is almost always true, and it appears to be so in this case, too:
❝Ergothioneine crosses the blood–brain barrier and has been reported to have beneficial effects in the brain. In this study, we discuss the cytoprotective and neuroprotective properties of ergotheioneine, which may be harnessed for combating neurodegeneration and decline during aging.❞
Source: Ergothioneine: A Stress Vitamin with Antiaging, Vascular, and Neuroprotective Roles?
Want to get some?
You can just eat a portion of mushrooms per day! But if you don’t fancy that, it is available as a supplement in convenient 1/day capsule form too.
We don’t sell it, but for your convenience, here is an example product on Amazon
Enjoy!
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Better Than BMI
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BMI is a very flawed system, and there are several more useful ways of measuring our bodies. Let’s take a look at them!
What’s wrong with BMI?
Oof, what isn’t wrong with BMI?
In short, it was developed as a demographic-based tool to specifically chart the weight-related health of working-age European white men a little under 200 years ago.
This means that if you are, perchance, not a working-age European white man in 1830 or so, then it’s not so useful. It’d be like first establishing height norms based on NBA basketball players, and then applying it to the general population, and thus coming to the conclusion that someone who is 6’2″ is very short.
In long, we did a deep-dive into it here, and in particular what things go dangerously wrong when it’s applied to women, non-white people, athletic people, pregnant people, people under 16 or over 65 and more:
When BMI Doesn’t Quite Measure Up
What we usually recommend instead
For heart disease risk and diabetes risk both, waist circumference is a much more universally reliable indicator. And since those two things tend to affect a lot of other health risks, it becomes an excellent starting point for being aware of many aspects of health.
Pregnancy will still throw off waist circumference a little (measure below the bump, not around it!), but it will nevertheless be more helpful than BMI even then, as it becomes necessary to just increase the numbers a little, according to gestational month and any confounding factors e.g. twins, triplets, etc. Ask your obstetrician about this, as it’s beyond the scope of our article today!
As to what’s considered a risk:
- Waist circumference of more than 35 inches for women
- Waist circumference of more than 40 inches for men
These numbers are considered applicable across demographics of age, ethnicity, and lifestyle.
Bonus extra measurement based on the above
Important also is waist to hip ratio.
How to calculate it:
- measure your waist circumference
- measure your hip circumference
- divide the first measurement by the second one
Because it’s a ratio, it doesn’t matter what units you use (e.g. inches, cm, etc) so long as you use the same units for both measurements.
The World Health Organization offers the following chart:
Health risk Women Men Low 0.80 or lower 0.95 or lower Moderate 0.81–0.85 0.96–1.0 High 0.86 or higher 1.1 or higher Source: Waist Circumference and Waist-Hip Ratio: Report of a WHO Expert Consultation
This is especially relevant for cardiovascular disease risk:
…and also holds true for all-cause mortality:
Waist-Hip-Ratio as a Predictor of All-Cause Mortality in High-Functioning Older Adults
An ancient contender that’s still more useful than BMI
Remember Archimedes? The (perhaps apocryphal) story of his “Eureka” moment in the bathtub when he realized that water displacement could be used to measure the volume of an irregular shape?
Just like Archimedes (who, the story goes, had been hired to determine the composition of a crown that might or might not have been pure gold), we can use this method to determine body composition, because we have references for how much a given volume of a given substance will weigh, so combing what we know about a body’s weight and volume will tell us about its composition in ways that neither metric could give us alone.
Indeed, it’s one of the commonly-mentioned flaws of BMI that muscle weighs more than fat, and Archimedes’ method not only avoids that problem, but also, actually turns that knowledge (muscle weighs more than fat) to our advantage.
It’s called “hydrostatic weighing” now:
You may be wondering: what about bones? Or internal organs?
The fact is that those are slightly confounding factors that do get in the way of a truly accurate analysis, but the variation in how much one person’s skeleton weighs vs another’s, or one person’s set of organs weigh than another’s, is too small to make an important difference to the health implications.
Lastly…
Hydrostatic weighing isn’t the only way to work out how much of our body is made of fat; if you have for example a smart scale at home (like this one) that tells you your body fat percentage, that is an estimate based on bioelectrical impedance analysis.
It’s less accurate than the hydrostatic method, but easier to do at home!
As to what percentages are “best”, healthy body fat percentages are (assuming normal hormones) generally considered to be in the range of 20–25% for women and 15–20% for men.
You can read more about this here:
Is A Visible Six-Pack Obtainable Regardless Of Genetic Predisposition?
Take care!
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