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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Reverse Inflammation Naturally – by Dr. Michelle Honda
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This book is in some ways not as marketable as some; it doesn’t have lots of colorful healthy food on the cover; it doesn’t even have a “woman laughing alone with salad” (you know the stock photo trope), let alone someone looking glamorous in a labcoat with a stethoscope draped over their shoulder despite listening to hearts not being a regular part of their job as an immunologist or such.
What it does have, instead, is a lot of very useful information, and much more than you’ll usually find in a book for laypeople.
For example, you probably know that for fighting inflammation, a green salad is better than a cheeseburger, say, and a black coffee is better than a glass of wine.
But do you know about the roles, for good or ill, of prostaglandins and linoleic fats vs dietary fats? How about delta-6-desaturase? Neu5Gc and arachidonic acid?
Dr. Honda demystifies all of these and more, as well as talking about the impacts of very many foods and related habits on various different inflammation-based disease. And of course, almost all disease involves some kind of inflammation (making fighting inflammation one of the best things you can do for your overall disease-avoidance strategy!), but she singles out some of the most relevant, as per the list on the front cover.
She also talks a lot of “pharmacy in your kitchen”, in other words, what herbs, spices, and plant extracts we can enjoy for (evidence-based!) benefits on top of our default healthy diet free (or at least mostly free, for surely none of us are perfect) from inflammatory agents.
Not content with merely giving a huge amount of information, she also gives recipes and a meal plan, but honestly, it’s the informational chapters that are the real value of the book.
Bottom line: if you’d like to reduce your body’s inflammation levels (and/or perhaps those of a loved one for whom you cook), then this book will be an invaluable resource.
Click here to check out Reverse Inflammation Naturally, and reverse inflammation naturally!
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Mythbusting The Big O
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“Early To Bed…”
In yesterday’s newsletter, we asked you for your (health-related) views on orgasms.
But what does the science say?
Orgasms are essential to good health: True or False?
False, in the most literal sense. One certainly won’t die without them. Anorgasmia (the inability to orgasm) is a condition that affects many postmenopausal women, some younger women, and some men. And importantly, it isn’t fatal—just generally considered unfortunate:
Anorgasmia Might Explain Why You’re Not Orgasming When You Want To
That article focuses on women; here’s a paper focusing on men:
Orgasms are good for the health, but marginally: True or False?
True! They have a wide array of benefits, depending on various factors (including, of course, one’s own sex). That said, the benefits are so marginal that we don’t have a flock of studies to cite, and are reduced to pop-science sources that verbally cite studies that are, alas, nowhere to be found, for example:
- For women: 9 Orgasm Benefits That Might Surprise You
- For men: 9 Ways Orgasms May Benefit Your Health
Doubtlessly the studies do exist, but are sparse enough that finding them is a nightmare as the keywords for them will bring up a lot of studies about orgasms and health that aren’t answering the above question (usually: health’s affect on orgasms, rather than the other way around).
There is some good science for post-menopausal women, though! Here it is:
Misconceptions About Sexual Health in Older Women
(if you have the time to read this, this also covers many very avoidable things that can disrupt sexual function, in ways that people will errantly chalk up to old age, not knowing that they are missing out needlessly)
Orgasms are good or bad, depending on being male or female: True or False
False, broadly. The health benefits are extant and marginal for almost everyone, as indicated above.
What’s that “almost” about, then?
There are a very few* people (usually men) for whom it doesn’t go well. In such cases, they have a chronic and lifelong problem whereby orgasm is followed by 2–7 days of flu-like and allergic symptoms. Little is known about it, but it appears to be some sort of autoimmune disorder.
Read more: Post-orgasmic illness syndrome: history and current perspectives
*It’s hard to say for sure how few though, as it is surely under-reported and thus under-diagnosed; likely even misdiagnosed if the patient doesn’t realize that orgasms are the trigger for such episodes, and the doctor doesn’t think to ask. Instead, they will be busy trying to eliminate foods from the diet, things like that, while missing this cause.
Orgasms are better avoided for optimal health: True or False?
Aside from the above, False. There is a common myth for men of health benefits of “semen retention”, but it is not based in science, just tradition. You can read a little about it here:
The short version is: do it if you want; don’t if you don’t; the body will compensate either way so it won’t make a meaningful difference to anything for most people, healthwise.
Small counterpoint: while withholding orgasm (and ejaculation) is not harmful to health, what does physiologically need draining sometimes is prostate fluid. But that can also be achieved mechanically through prostate milking, or left to fend for itself (as it will in nocturnal emissions, popularly called wet dreams). However, if you have problems with an enlarged prostate, it may not be a bad idea to take matters into your own hands, so to speak. As ever, do check with your doctor if you have (or think you may have) a condition that might affect this.
One final word…
We’re done with mythbusting for today, but we wanted to share this study that we came across (so to speak) while researching, as it’s very interesting:
On which note: if you haven’t already, consider getting a “magic wand” style vibe; you can thank us later (this writer’s opinion: everyone should have one!).
Top tip: do get the kind that plugs into the wall, not rechargeable. The plug-into-the-wall kind are more powerful, and last much longer (both “in the moment”, and in terms of how long the device itself lasts).
Enjoy!
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Polyphenol Paprika Pepper Penne
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This one’s easier to promptly prepare than it is to pronounce unprepared! Ok, enough alliteration: this dish is as full of flavor as it is full of antioxidants, and it’s great for digestive health and heart health too.
You will need
- 4 large red bell peppers, diced
- 2 red onions, roughly chopped
- 1 bulb garlic, finely chopped
- 2 cups cherry tomatoes, halved
- 10oz wholemeal penne pasta
- 1 tbsp nutritional yeast
- 1 tbsp smoked paprika
- 1 tbsp black pepper
- Extra virgin olive oil for drizzling
Method
(we suggest you read everything at least once before doing anything)
1) Preheat the oven to 200℃ / 400℉ / Gas mark 6
2) Put the vegetables in a roasting tin; drizzle with oil, sprinkle with the seasonings (nooch, paprika, black pepper), stir well to mix and distribute the seasonings evenly, and roast for 20–25 minutes, stirring/turning occasionally. When the edges begin to caramelize, turn off the heat, but leave to keep warm.
3) Cook the penne al dente (this should take 7–8 minutes in boiling salted water). Rinse in cold water, then pass a kettle of hot water over them to reheat. This process removed starch and lowered the glycemic index, before reheating the pasta so that it’s hot to serve.
4) Place the roasted vegetables in a food processor and blitz for just a few seconds. You want to produce a very chunky sauce—but not just chunks or just sauce.
5) Combine the sauce and pasta to serve immediately.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Which Bell Peppers To Pick? A Spectrum Of Specialties ← note how red bell peppers are perfect for this, as their lycopene quadruples in bioavailability when cooked
- Black Pepper’s Impressive Anti-Cancer Arsenal (And More)
- The Many Health Benefits Of Garlic
- What Matters Most For Your Heart? Eat More (Of This) For Lower Blood Pressure
Take care!
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Healthy Recipes When There Are A Lot Of Restrictions
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
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 need to cook for a family event and the combined dietary restrictions are: vegetarian, no lactose, no gluten, no nuts, including peanuts and coconuts, no discernible carbs, including lentils and chickpeas, no garlic or onions, no cabbage, no soup, and it can’t be remotely spicy. The nut allergy is of course absolute and we are vegetarian, the other things may be slightly negotiable but I’d like a stress-free dinner. Ideas?❞
That is indeed quite restrictive! But a challenge is (almost) always fun.
To answer generally first: one approach is to do buffet-style dining, with many small dishes. While nuts will still need to be absent, because of the nature of nut allergies, the rest can just be skipped on a per-person basis.
But, let’s see what we can do with a one-dish-fits-all approach!
The biggest challenge seems to be getting protein and flavor. Protein options are more limited without meat, lactose, or legumes, and flavor requires some attention without being able to rely on spices.
To give a sample à la carte menu… With these things in mind, we’ve selected three of our recipes from the recipes section of our site, that will require only minor modifications:
1) Invigorating Sabzi Khordan: skip the walnuts and either partition or omit the scallions, and ensure the cheese is lactose-free (most supermarkets stock lactose-free cheeses, nowadays).
With regard to the flatbreads, you can either skip, or use our gluten-free Healthy Homemade Flatbreads recipe, though it does use chickpea flour and quinoa flour, so the “no discernible carbs” person(s) might still want to skip them. If it’s not an issue on the carbs front, then you might also consider, in lieu of one of the more traditional cheeses, using our High-Protein Paneer recipe which, being vegan, is naturally lactose-free. Also, which is not traditional but would work fine, you might want to add cold hard-boiled halved eggs, since the next course will be light on protein:
2) Speedy Easy Ratatouille: skip the red chili and garlic; that’s all for this one!
3) Black Forest Chia Pudding: the glycemic index of this should hopefully be sufficient to placate the “no discernible carbs” person(s), but if it’s not, we probably don’t have a keto-friendlier dessert than this. And obviously, when it comes to the garnish of “a few almonds, and/or berries, and/or cherries and/or cacao nibs”, don’t choose the almonds.
Want to know more?
For any who might be curious:
Gluten: What’s The Truth? ← this also discusses the differences between an allergy/intolerance/sensitivity—it’s more than just a matter of severity!
Take care!
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100 Hikes of a Lifetime – by Kate Siber
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This is published by National Geographic, so you can imagine the quality of the photos throughout.
Inside, and after a general introduction and guide to gear and packing appropriately, it’s divided into continents, with a diverse array of “trips of a lifetime” for anyone who enjoys hiking.
It’s not a narrative book, rather, it is a guide, a little in the style of “Lonely Planet”, with many “know before you go” tips, information about the best time to go, difficult level, alternative routes if you want to get most of the enjoyment while having an easier time of it (or, conversely, if you want to see some extra sights along the way), and what to expect at all points.
Where the book really excels is in balancing inspiration with information. There are some books that make you imagine being in a place, but you’ll never actually go there. There are other books that are technical manuals but not very encouraging. This one does both; it provides the motivation and the “yes, you really can, here’s how” information that, between them, can actually get you packing and on your way.
Bottom line: if you yearn for breathtaking views and time in the great outdoors, but aren’t sure where to start, this will give you an incredible menu to choose from, and give you the tools to go about doing it.
Click here to check out 100 Hikes Of A Lifetime, and live it!
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Can You Gain Muscle & Lose Fat At The Same Time?
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
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 😎
❝Is it possible to lose fat and gain muscle at the same time, or do we need to focus on one and then the other, and if so, which order is best?❞
Contrary to popular belief, you can do both simultaneously! However, it’s not as easy as doing just one or the other, which is why most bodybuilders, for example, have a “building phase” and a “cutting phase”.
The reason it’s difficult is because of the diet. Growing muscle doesn’t just take protein and micronutrients; it takes energy as well, which must come from carbohydrates and/or fats. Therefore, it is tricky to eat enough to build muscle and to fuel the workouts that are required to build the muscle (you can’t hit the gym in a state of rabbit starvation* and expect to perform well at your workout), while at the same time not eating enough carbs/fats to have any excess to store as fat.
*So-called because rabbit-meat is very lean, such that when during times of famine, European peasants tried to subsist off mostly rabbits, their health quickly plummeted for lack of energy. It’s also been called “salmon starvation”, apparently, for the same reason:
In French it’s called “Mal de caribou” (caribou sickness), by the way. But you get the idea: eat too much lean protein without enough carbs/fats, and woe shall befall.
So, if you want to do both at once, you need to be incredibly on top of your macros, and the bad news is, only you (or a coach working directly with you) can work out what precise macros requirements your body has, because it depends on your body and your activities.
The easier “half-way house”
We will get to the “building phase” and “cutting phase” of bodybuilders, but first, here’s an option that’s very worthy of consideration, and it is: forget about your weight and just focus on health while incidentally doing regular resistance exercises and HIIT.
What will happen if you do this (assuming a healthy balanced diet, nothing special and without counting anything, but we’re talking at least mostly whole-foods, and at least mostly plants; the Mediterranean diet is great for this, as it is for most things) is:
- The dietary approach described will gradually improve your metabolic health if it wasn’t already good. If it was already good, it’ll likely just maintain it, rather than improve it.
- The resistance exercises will, if engaged with seriously (it has to be difficult to do, or your muscles won’t have any reason to grow), gradually build muscle. This will be very gradual, because you’re not eating for bodybuilding, nor optimizing your general lifestyle for same. Historically many women have feared lifting weights because they don’t want to “look like a weightlifter”, but the kinds of bodies that word brings to mind are not the kind that happen by accident (especially for women, with our different hormones guiding our bodies to a different composition); it takes a lot of single-minded dedication to specifically optimize size gains, for a long time.
- The high-intensity interval training (HIIT) will more rapidly improve your metabolic health, and unlike most forms of exercise, it will actually result in a gradual reduction of fat, if you have superfluous fat to lose. This is because whereas most forms of cardio exercise increase the heartrate for a while but then have a corresponding metabolic slump afterwards to make up for it, HIIT confuses the heart (in a good way) which results in it having to grow stronger, and not doing any compensatory metabolic slump:
How To Do HIIT (Without Wrecking Your Body) ← as well as the “how to”, this also gives some of the science behind it, too
This will, thus, result in gradual gain of muscle and loss of fat—or if you take it easier with the exercise, then you can easily settle into just maintaining your body composition as it is, but that wasn’t the question today.
So, there you have it, that’s how to do both at once! Now, if you want more dramatic results, then more dramatic methods are called for:
What bodybuilders (mostly) do
Matters of genetic predisposition and commonplace use of steroids aside, here’s how bodybuilders get that “lots of muscle, no fat” figure:
- First, get into “moderate” shape if not already there.
- Bulk up: eat amounts of food that will seem unreasonable to a non-bodybuilder; eating 2x or even 3x the “recommended” daily calorie amount is common; focus is typically on getting adequate (for bodybuilding purposes) protein while also carb-loading for workouts and getting at least enough fats for fat-soluble vitamins to work. In the gym, focus on doing sets of very few reps with the heaviest weights one can safely lift, while doing minimal cardio, and also sleeping a lot (9–12hrs per day), which is essential because this is putting a huge strain on the body and it needs a chance to recover and rebuild.
- Cut down: maintain protein intake (to at least mostly maintain muscles) while keeping carbs and fats low, doing cardio work (HIIT is still ideal) and running a calorie deficit for a short while (there is no use in trying to maintain a long-term calorie deficit; your body will try to save you from starvation by storing any fat it can and slowing your metabolism).
Phases 2 and 3 are then cycled, alternating every month, or every 6 weeks, or every 2 months or so, depending on personal preferences and scheduling considerations (bodybuilders will often have competitions they are working towards, so they need to time things to be at the end of a cutting phase to look their “best” by bodybuilder standards).
Disclaimer: bodybuilding is complex, and can be ruinous to the health if practised inexpertly, because of its extreme nature. We don’t recommend serious bodybuilding per se in general, but if you are going to do it, please consult with a professional bodybuilding coach, and do not rely on a few paragraphs from us that are intended only to give the most basic overview of how bodybuilders can approach the “gain muscle, lose fat” problem.
Want to know more?
We’ve written on some related topics previously; here’s a three-part series:
- How To Lose Weight (Healthily!)
- How To Build Muscle (Healthily!)
- How To Gain Weight (Healthily!) ← this one’s specifically about gaining healthy levels of fat, for any who want/need that
And also:
Can We Do Fat Redistribution? ← yes we can, but there are caveats
Take care!
Don’t Forget…
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