Swordfish vs Tuna – Which is Healthier?

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Our Verdict

When comparing swordfish to tuna, we picked the tuna.

Why?

Today in “that which is more expensive is not necessarily the healthier”…

Considering the macros first, swordfish has more than 8x more total fat, about 9x more saturated fat, and yes, more cholesterol. On the other hand, tuna has more protein. An easy win for tuna.

In terms of vitamins, swordfish has more of vitamins A, B5, D, and E, while tuna has more of vitamins B1, B2, B3, B6, and B12. A marginal win for tuna, unless you want to weight the other vitamins more heavily, in which case, more likely a tie, or maybe even an argument for swordfish if you have a particular vitamin deficiency on that side.

When it comes to minerals, swordfish has more calcium and zinc, while tuna has more iron, magnesium, manganese, phosphorus, potassium, and selenium. A clear win for tuna.

One other thing: they’re both very rich in mercury, and while tuna is bad for that, swordfish has nearly 3x as much.

In short, both have a good spread of vitamins and minerals, and both are quite tainted with mercury, but in relative terms, there’s a clear winner even before considering the very different macros, and the winner is tuna.

Want to learn more?

You might like to read:

Farmed Fish vs Wild Caught: Important Differences

Take care!

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  • The Vagus Nerve’s Power for Weight Loss

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    Dr. Arun Dhir is a university lecturer, a gastrointestinal surgeon, an author, and a yoga and meditation instructor, and he has this to say:

    Gut feelings

    The vagus nerve is the 10th cranial nerve, also known as “vagus” (“the wanderer”), because it travels from the brain to many other body parts, including the ears, throat, heart, respiratory system, gut, pancreas, liver, and reproductive system. It’s no surprise then, that it plays a key role in brain-gut communication and metabolism regulation.

    The vagus nerve is part of the parasympathetic nervous system, responsible for rest, digestion, and counteracting the stress response. Most signals through the vagus nerve travel from the gut to the brain, though there is communication in both directions.

    You may be beginning to see how this works and its implications for weight management: the vagus nerve senses metabolites from the liver, pancreas, and small intestine, and regulates insulin production by stimulating beta cells in the pancreas, which is important for avoiding/managing insulin resistance and metabolic syndrome in general.

    Dr. Dhir cites a study in which vagus nerve stimulation (originally used for treating epilepsy and depression) was shown to cause unintentional weight loss (6-11%) in patients, revealing a link to weight management. Of course, that is quite a specific sample, so more research is needed to say for sure, but because the principle is very sound and the mechanism of action is clear, it’s not being viewed as a controversial conclusion.

    As for how get these benefits, here are seven ways:

    1. Cold water on the face: submerge your face in cold water in the morning while holding water in your mouth, or cover your face with a cold wet washcloth (while holding your breath please; no need to waterboard yourself!), which activates the “mammalian dive response” in which your body activates the parasympathetic nervous system in order to remain calm and thus survive for longer underwater
    2. Alternate hot and cold showers: switch between hot and cold water during showers for 10-second intervals; this creates eustress and activates the process of hormesis, improving your overall stress management and reducing any chronic stress response you may otherwise have going on
    3. Humming and gargling: the vibrations in the throat stimulate the nearby vagus nerve
    4. Deep breathing (pranayama): yoga breathing exercises, especially combined with somatic exercises such as the sun salutation, can stimulate the vagus nerve
    5. Intermittent fasting: helps recalibrate the metabolism and indirectly improves vagus nerve function
    6. Massage and acupressure: stimulates lymphatic channels and the vagus nerve
    7. Long walks in nature (“forest bathing”): helps trigger relaxation in general

    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 to read:

    The Vagus Nerve (And How You Can Make Use Of It)

    Take care!

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  • Science-Based Alternative Pain Relief

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    When Painkillers Aren’t Helping, These Things Might

    Maybe you want to avoid painkillers, or maybe you’ve already maxed out what you can have, and want more options as an extra help against the pain.

    Today we’ll look at some science-backed alternative pain relief methods:

    First: when should we try to relieve pain?

    There is no such thing as “this pain is not too much”. The correct amount of pain is zero. Maybe your body won’t let you reach zero, but more than that is “too much” already.

    You don’t have to be suffering off the scale to deserve relief from pain!

    So: if it hurts, then if you can safely get relief from the pain, it’s already wise to do so.

    A couple of things we covered previously

    CBD and THC are technically drugs, but are generally considered “alternative” pain relief, so we’ll give a quick mention here:

    Short version:

    • CBD can treat some kinds of treatment-resistant pain well (others, not so much—try it and find out if it works for you)
    • THC can offer some people respite not found from other methods—but beware, because there are many health risks to consider.

    Acupuncture

    Pain relief appears to be its strongest suit:

    Pinpointing The Usefulness Of Acupuncture

    Cloves

    Yes, just like you can get from the supermarket.

    In its medicinal uses, it’s most well-known as a toothache remedy, but it has a local analgesic effect wherever you put it (i.e., apply it topically to where the pain is), thanks to its eugenol content:

    Syzygium aromaticum L. (Myrtaceae): Traditional Uses, Bioactive Chemical Constituents, Pharmacological and Toxicological Activities

    Boswellia (frankincense)

    The resin of the Boswellia serrata tree, this substance has an assortment of medicinal properties, including pain relief, anti-inflammatory effect, and psychoactive (anxiolytic and antidepressant) effects:

    Frankincense is psychoactive: new class of antidepressants might be right under our noses

    And as for physical pain? Here’s how it faired against the pain of osteoarthritis (and other OA symptoms, but we’re focusing on pain today), for example:

    Effectiveness of Boswellia and Boswellia extract for osteoarthritis patients: a systematic review and meta-analysis

    Here’s an example product on Amazon, but feel free to shop around as there are many options, including for example this handy roll-on

    Further reading

    Intended for chronic pain, but in large part applicable to acute pain also:

    Managing Chronic Pain (Realistically!)

    Take care!

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  • What Curiosity Really Kills

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    Curiosity Kills The Neurodegeneration

    Of the seven things that Leonardo da Vinci considered most important for developing and maintaining the mind, number one on his list was curiosity, and we’re going to be focussing on that today.

    In case you are curious about what seven things made Leonardo’s* list, they were:

    1. Curiosità: an insatiably curious approach to life and an unrelenting quest for continuous learning
    2. Dimostrazione: a commitment to test knowledge through experience, persistence, and a willingness to learn from mistakes
    3. Sensazione: the continual refinement of the senses, especially sight, as a means to enliven experience
    4. Sfumato: (lit: “gone up in smoke”) a willingness to embrace ambiguity, paradox, and uncertainty
    5. Arte/Scienza: the curated balance of art and science, imagination and logic
    6. Corporalità: the cultivation of physical grace, ambidexterity, and fitness
    7. Connessione: a recognition of and appreciation for the interconnectedness of phenomena (systems-based thinking)

    *In case you are curious why we wrote “Leonardo” and not “da Vinci” as per our usual convention of shortening names to last names, da Vinci is not technically a name, in much the same way as “of Nazareth” was not a name.

    You can read more about all 7 of these in a book that we’ve reviewed previously:

    How to Think Like Leonardo da Vinci: Seven Steps to Genius Every Day – by Michael J. Gelb

    But for now, let’s take on “curiosity”!

    If you need an extra reason to focus on growing and nurturing your curiosity, it was also #1 of Dr. Daniel Levitin’s list of…

    The Five Keys Of Aging Healthily

    …and that’s from a modern-day neuroscientist whose research focuses on aging, the brain, health, productivity, and creativity.

    But how do we foster curiosity in the age of Google?

    Curiosity is like a muscle: use it or lose it

    While it’s true that many things can be Googled to satisfy one’s curiosity in an instant…

    • do you? It’s only useful if you do use it
    • is the top result on Google reliable?
    • there are many things that aren’t available there

    In short: douse “fast food information” sources, but don’t rely on them! Not just for the sake of having correct information, but also: for the actual brain benefits which is what we are aiming for here with today’s article.

    If you want the best brain benefits, dive in, and go deep

    Here at 10almonds we often present superficial information, with links to deeper information (often: scholarly articles). We do this because a) there’s only so much we can fit in our articles and b) we know you only have so much time available, and/but may choose to dive deeper.

    Think of it in layers, e.g:

    • Collagen is good for joints and bones
    • Collagen is a protein made of these amino acids that also requires these vitamins and minerals to be present in order to formulate it
    • Those amino acids are needed in these quantities, of which this particular one is usually the weakest link that might need supplementing, and those vitamins and minerals need to be within this period of time, but not these ones at the exact same time, or else it will disrupt the process of collagen synthesis

    (in case you’re curious, we covered this here and here and offered a very good, very in-depth book about it here)

    Now, this doesn’t mean that to have a healthy brain you need to have the equivalent knowledge of an anatomy & physiology degree, but it is good to have that level of curiosity in at least some areas of your life—and the more, the better.

    Top tips for developing a habit of curiosity

    As you probably know, most of our endeavors as humans go best when they are habits:

    How To Really Pick Up (And Keep!) Those Habits

    And as for specifically building a habit of curiosity:

    1. Make a deal with yourself that when someone is excited to tell you what they know about something (no matter whether it is your grandkid, or the socially awkward nerd at a party, or whoever), listen and learn, no matter the topic.
    2. Learn at least one language other than your native language (presumably English for most of our readers). Not only does learning a language convey a lot of brain benefits of its own, but also, it is almost impossible to separate language learning from cultural learning, and so you will learn a lot about another culture too, and have whole new worlds opened up to you. Again, more is better, but one second language is already a lot better than none.
    3. Make a regular habit of going to your local library, and picking out a non-fiction book to take home and read. This has an advantage over a bookshop, by the way (and not just that the library is free): since library books must be returned, you will keep going back, and build a habit of taking out books.
    4. Pick a skill that you’d like to make into a fully-fledged hobby, and commit to continually learning as much about it as you can. We already covered language-learning above, but others might include: gardening (perhaps a specific kind), cooking (perhaps a specific kind), needlecraft (perhaps a specific kind), dance (perhaps a specific kind). You could learn a musical instrument. Or it could be something very directly useful, like learning to be a first responder in case of emergencies, and committing to continually learning more about it (because there is always more to learn).

    And when it comes to the above choices… Pick things that excite you, regardless of how practical or not they are. Because that stimulation that keeps on driving you? That’s what keeps your brain active, healthy, and sharp.

    Enjoy!

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Related Posts

  • Tuna vs Catfish – Which is Healthier?
  • Apricot vs Banana – Which is Healthier?

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Our Verdict

    When comparing apricot to banana, we picked the banana.

    Why?

    Both are great, and it was close!

    In terms of macros, apricot has more protein, while banana has more carbs and fiber; both are low glycemic index foods, and we’ll call this category a tie.

    In the category of vitamins, apricot has more of vitamins A, C, E, and K, while banana has more of vitamins B1, B2, B3, B5, B6, B7, B9, and choline, giving banana the win by strength of numbers. It’s worth noting though that apricots are one of the best fruits for vitamin A in particular.

    When it comes to minerals, apricot has slightly more calcium, iron, and zinc, while banana has a lot more magnesium, manganese, potassium, and selenium, meaning a moderate win for banana here.

    Adding up the sections makes for an overall win for banana—but of course, by all means enjoy either or both!

    Want to learn more?

    You might like to read:

    Top 8 Fruits That Prevent & Kill Cancer ← we argue for apricots as bonus number 9 on the list

    Take care!

    Don’t Forget…

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  • When BMI Doesn’t Measure Up

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    When BMI Doesn’t Quite Measure Up

    Last month, we did a “Friday Mythbusters” edition of 10almonds, tackling many of the misconceptions surrounding obesity. Amongst them, we took a brief look at the usefulness (or lack thereof) of the Body Mass Index (BMI) scale of weight-related health for individuals. By popular subscriber request, we’re now going to dive a little deeper into that today!

    The wrong tool for the job

    BMI was developed as a tool to look at large-scale demographic trends, stemming from a population study of white European men, who were for the purpose of the study (the widescale health of the working class in that geographic area in that era), considered a reasonable default demographic.

    In other words: as a system, it’s now being used in a way it was never made for, and the results of that misappropriation of an epidemiological tool for individual health are predictably unhelpful.

    If you want to know yours…

    Here’s the magic formula for calculating your BMI:

    • Metric: divide your weight in kilograms by your height in square meters
    • Imperial: divide your weight in pounds by your height in square inches and then multiply by 703

    “What if my height doesn’t come in square meters or square inches, because it’s a height, not an area?”

    We know. Take your height and square it anyway. If this seems convoluted and arbitrary, yes, it is.

    But!

    While on the one hand it’s convoluted and arbitrary… On the other hand, it’s also a gross oversimplification. So, yay for the worst of both worlds?

    If you don’t want to grab a calculator, here’s a quick online tool to calculate it for you.

    So, how did you score?

    According to the CDC, a BMI score…

    • Under 18.5 is underweight
    • 18.5 to 24.9 is normal
    • 25 to 29.9 is overweight
    • 30 and over is obese

    And, if we’re looking at a representative sample of the population, where the representation is average white European men of working age, that’s not a bad general rule of thumb.

    For the rest of us, not so representative

    BMI is a great and accurate tool as a rule of thumb, except for…

    Women

    An easily forgotten demographic, due to being a mere 51% of the world’s population, women generally have a higher percentage of body fat than men, and this throws out BMI’s usefulness.

    If pregnant or nursing

    A much higher body weight and body fat percentage—note that these are two things, not one. Some of the extra weight will be fat to nourish the baby; some will be water weight, and if pregnant, some will be the baby (or babies!). BMI neither knows nor cares about any of these things. And, this is a big deal, because BMI gets used by healthcare providers to judge health risks and guide medical advice.

    People under the age of 16 or over the age of 65

    Not only do people below and above those ages (respectively) tend to be shorter—which throws out the calculations and mean health risks may increase before the BMI qualifies as overweight—but also:

    • BMI under 23 in people over the age of 65 is associated with a higher health risk
    • A meta-analysis showed that a BMI of 27 was the best in terms of decreased mortality risk for the over-65 age group

    This obviously flies in the face of conventional standards regards BMI—as you’ll recall from the BMI brackets we listed above.

    Read the science: BMI and all-cause mortality in older adults: a meta-analysis

    Athletic people

    A demographic often described in scientific literature as “athletes”, but that can be misleading. When we say “athletes”, what comes to mind? Probably Olympians, or other professional sportspeople.

    But also athletic, when it comes to body composition, are such people as fitness enthusiasts and manual laborers. Which makes for a lot more people affected by this!

    Athletic people tend to have more lean muscle mass (muscle weighs more than fat), and heavier bones (can’t build strong muscles on weak bones, so the bones get stronger too, which means denser)… But that lean muscle mass can actually increase metabolism and help ward off many of the very same things that BMI is used as a risk indicator for (e.g. heart disease, and diabetes). So people in this category will actually be at lower risk, while (by BMI) getting told they are at higher risk.

    If not white

    Physical characteristics of race can vary by more than skin color, relevant considerations in this case include, for example:

    • Black people, on average, not only have more lean muscle mass and less fat than white people, but also, have completely different risk factors for diseases such as diabetes.
    • Asian people, on average, are shorter than white people, and as such may see increased health risks before BMI qualifies as overweight.
    • Hispanic people, on average, again have different physical characteristics that throw out the results, in a manner that would need lower cutoffs to be even as “useful” as it is for white people.

    Further reading on this: BMI and the BIPOC Community

    In summary:

    If you’re an average white European working-age man, BMI can sometimes be a useful general guide. If however you fall into one or more of the above categories, it is likely to be inaccurate at best, if not outright telling the opposite of the truth.

    What’s more useful, then?

    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 today’s newsletter!

    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, sex, ethnicity, and lifestyle.

    Source: Waist circumference as a vital sign in clinical practice: a Consensus Statement from the IAS and ICCR Working Group on Visceral Obesity

    There are more options than just waist circumference though; we delve into them in detail here:

    Better Than BMI

    Take care!

    Don’t Forget…

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  • Big Think’s #1 Antidote To Aging

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    Why This Video Is Important

    A lot of what we talk about here at 10almonds is focused on healthy aging. We want you – our lovely readers – to not only live for a long time, but also be healthy enough to enjoy that “long time”.

    We’ve talked about anything from Dr. Greger’s eight anti-aging interventions, to the specific benefits of resveratrol or metformin in combatting aging, to even reducing stress-induced aging.

    So, why is this video important? It goes beyond just talking about what we know about living longer, but also focuses on how we should live longer; there’s a big difference between living a long life but never leaving your house vs. living a long life beyond your front door.

    The Takeaways

    The core message that Big Think wants to convey is that our lifestyle is our best bet in slowing the aging process. Our bodies are adaptive systems, responding positively to healthy lifestyle choices. They focus on exercise: regular physical activity increases healthspan, consequently extending lifespan.

    A key takeaway is the difference between physical activity and exercise. While any movement counts as physical activity, exercise is a deliberate, health-focused activity. It benefits the brain by releasing growth factors that strengthen critical areas like the hippocampus and prefrontal cortex.

    The video encourages embracing physical activity in any form available to you, from gardening to walking. The goal isn’t to hit a specific number of steps but to stay active in a way that suits your lifestyle.

    Science may not solve death. Yet. But focusing on maintaining a healthy, functioning state for as long as possible is the real victory in the battle against aging. And, at the moment, exercise seems to be our best bet:

    How did you find that video? If you’ve discovered any great videos yourself that you’d like to share with fellow 10almonds readers, then please do email them to us!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

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