Canned Tuna vs Canned Sardines – Which is Healthier?
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Our Verdict
When comparing canned tuna to canned sardines, we picked the sardines.
Why?
This comparison is unfair, but practical—because both are sold next to each other in the supermarket and often used for similar things.
It’s unfair because in a can of tuna, there is tuna meat, whereas in a can of sardines, there is sardine meat, skin, and bones.
Consequently, sardines outperform tuna in almost everything, because a lot of nutrients are in the skin and bones.
To be completely unambiguous:
Sardines have more vitamins and minerals by far (special shout-out to calcium, of which sardines contain 6000% more), and more choline (which is sometimes reckoned as a vitamin, sometimes not).
Tuna does have marginally more protein, and less fat. If you are trying to limit your cholesterol intake, then that could be an argument for choosing tuna over sardines.
All in all: the sardines are more nutrient dense by far, are good sources of vitamins and minerals that tuna contains less of (and in many cases only trace amounts of), and for most people this will more than offset the difference in cholesterol, especially if having not more than one can per day.
About that skin and bones…
That’s where the real benefit for your joints lies, by the way!
See: We Are Such Stuff As Fish Are Made Of
Enjoy!
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Play Bold – by Magnus Penker
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This book is very different to what you might expect, from the title.
We often see: “play bold, believe in yourself, the universe rewards action” etc… Instead, this one is more: “play bold, pay attention to the data, use these metrics, learn from what these businesses did and what their results were”, etc.
We often see: “here’s an anecdote about a historical figure and/or celebrity who made a tremendous bluff and it worked out well so you should too” etc… Instead, this one is more: “see how what we think of as safety is actually anything but! And how by embracing change quickly (or ideally: proactively), we can stay ahead of disaster that may otherwise hit us”.
Penker’s background is also relevant here. He has decades of experience, having “launched 10 start-ups and acquired, turned around, and sold over 30 SMEs all over Europe”. Importantly, he’s also “still in the game”… So, unlike many authors whose last experience in the industry was in the 1970s and who wonder why people aren’t reaping the same rewards today!
Penker is the therefore opposite of many who advocate to “play bold” but simply mean “fail fast, fail often”… While quietly relying on their family’s capital and privilege to leave a trail of financial destruction behind them, and simultaneously gloating about their imagined business expertise.
In short: boldness does not equate to foolhardiness, and foolhardiness does not equate to boldness.
As for telling the difference? Well, for that we recommend reading the book—It’s a highly instructive one.
Take The First Bold Step Of Checking Out This Book On Amazon!
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Bird Flu: Children At High Risk; Older Adults Not So Much
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In this week’s news roundup…
Children at highest risk for bird flu
When a new infectious disease comes out, we get used to hearing the usual refrain, “children, the elderly, those with compromised immune systems” are those considered at greatest risk, and therefore first in line for vaccines.
In this case, however, it seems that older adults appear to be rather more resilient to bird flu than children, and it’s noted that early childhood influenza exposure can elicit immune responses that last a lifetime. For those whose lifetime was not curtailed by the initial infection, that means they may enjoy extra defenses now.
You may be wondering whether this headline statement is just a hypothesis based on that, and no, it’s not. It’s a (albeit tentative, like most things in any emerging science, as responses to a novel infection will always be) conclusion based on blood samples from a little over 150 people born between 1927 and 2026 (so, quite a range), and examining the antibodies found therein; adults born prior to 1968 are the ones who are most likely to have been exposed to H1N1 or H2N2 in childhood, resulting in them now having antibodies that work against the H5N1 virus (but still, by all means please do take all sensible precautions anyway!):
Read in full: Older adults might be more resistant to bird flu infections than children, research finds
Related: What you need to know about H5N1 bird flu
GLP-1 Receptor Agonists? They work, but at what cost?
We’re not talking about the side effects this time! Nor even the “what happens if you stop taking it” problems.
Rather, the “cost” in this case is the literal financial cost; out of a selection of weight loss drugs examined, semaglutide (such as Ozempic and Wegovy) and tirzepatide (such as Zepbound and Eli Lilly) were the only ones deemed to not be cost-effective for patients:
Read in full: Semaglutide, tirzepatide not deemed cost-effective obesity therapies despite benefits
Related: Most People Who Start GLP-1 RAs Quit Them Within A Year (Here’s Why)
Inflammation now, brittle bones later
Chronic inflammation is a root cause of many diseases (due in part to how it weakens the immune system, but also because of how the body functions so badly in general when it’s constantly at war with itself, as is the case in chronic inflammation), and it worsens many diseases that it doesn’t outright cause.
In this case, the new science is that chronic inflammation also makes changes to bone density over time.
Spoiler: the changes are not good changes
Furthermore, this holds true for young people also, not just people in the usual demographic that one would expect for brittle bones (especially: older women with untreated menopause, but also just anyone older than middle-aged in general, as most people start losing about 1% of bone density per year after their mid-30s).
Read in full: Inflammation proteins linked to bone density changes over time
Related: The Bare-Bones Truth About Osteoporosis
Take care!
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Parsnips vs Potatoes – Which is Healthier?
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Our Verdict
When comparing parsnips to potatoes, we picked the parsnips.
Why?
To be more specific, we’re looking at russet potatoes, and in both cases we’re looking at cooked without fat or salt, skin on. In other words, the basic nutritional values of these plants in edible form, without adding anything. With this in mind, once we get to the root of things, there’s a clear winner:
Looking at the macros first, potatoes have more carbs while parsnips have more fiber. Potatoes do have more protein too, but given the small numbers involved when it comes to protein we don’t think this is enough of a plus to outweigh the extra fiber in the parsnips.
In the category of vitamins, again a champion emerges: parsnips have more of vitamins B1, B2, B5, B9, C, E, and K, while potatoes have more of vitamins B3, B6, and choline. So, a 7:3 win for parsnips.
When it comes to minerals, parsnips have more calcium copper, manganese, selenium, and zinc, while potatoes have more iron and potassium. Potatoes do also have more sodium, but for most people most of the time, this is not a plus, healthwise. Disregarding the sodium, this category sees a 5:2 win for parsnips.
In short: as with most starchy vegetables, enjoy both in moderation if you feel so inclined, but if you’re picking one, then parsnips are the nutritionally best choice here.
Want to learn more?
You might like to read:
- Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
- Should You Go Light Or Heavy On Carbs?
Take care!
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Red Bell Peppers vs Tomatoes – 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 red bell peppers to tomatoes, we picked the peppers.
Why?
In terms of macronutrients, these two fruits-that-get-used-as-vegetables are similar in most respects; they’re mostly water, negligible protein and fat, similar amounts of carbs, even a similar carb breakdown (mostly fructose and glucose). One thing that does set them apart is that peppers* have about 2x the fiber, which difference results in peppers having the lower Glycemic Index—though tomatoes are quite low in GI too.
*for brevity we’re just going to write “peppers”, but we are still talking about sweet red bell peppers throughout. This is important, as different color peppers have different nutrient profiles.
In the category of vitamins, peppers have much more of vitamins A, B1, B2, B3, B5, B6, B9, C, and E. In contrast, tomatoes have more vitamin K. An easy win for peppers.
When it comes to minerals, the margins are narrower, but peppers have more iron, zinc, and selenium, while tomatoes have more calcium and copper. They’re approximately equal on other minerals they both contain, making this category a slight (3:2) win for peppers.
As for phytochemical benefits, both are good sources of lycopene (both better when cooked) and other carotenes (for example lutein), and both have an array of assorted flavonoids.
All in all, a win for peppers, but both are great!
Want to learn more?
You might like to read:
- Brain Food? The Eyes Have It!
- Bell Peppers: A Spectrum Of Specialties
- Lycopene’s Benefits For The Gut, Heart, Brain, & More
Take care!
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Is thirst a good predictor of dehydration?
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Water is essential for daily functioning and health, and we can only survive a few days without it. Yet we constantly lose water through sweat, urination and even evaporation when we breathe.
This is why we have evolved a way to regulate and maintain water in our bodies. Like other animals, our survival relies on a strong biological drive that tells us to find and drink water to balance fluid loss.
This is thirst – a sensation of dryness in the mouth signalling we need to have a drink. This basic physiological mechanism is controlled mainly by part of the brain’s “control centre”, called the hypothalamus. The hypothalamus receives signals from various regions of the body and in return, releases hormones that act as a messenger to signal the thirst sensation.
KieferPix/Shutterstock What is dehydration?
Staying hydrated (having enough water in our bodies) is important for several reasons, including:
- regulating body temperature through sweat and respiration
- lubricating joints and eyes
- preventing infections
- digesting and absorbing nutrients
- flushing out waste (via the kidneys)
- preventing constipation
- brain function (including memory and concentration)
- mood and energy levels
- physical performance and recovery from exercise
- skin health.
Dehydration occurs when our body doesn’t have enough water. Even slight drops in fluid levels have noticeable consequences, such as headaches, feeling dizzy, lethargy and struggling to concentrate.
Chronic dehydration can pose more serious health risks, including urinary tract infections, constipation and kidney stones.
What does the evidence say?
Despite thirst being one of the most basic biological drivers for good hydration, science suggests our feelings of thirst and subsequent fluid intake don’t always correlate with hydration levels.
For example, a recent study explored the impact of thirst on fluid intake and hydration status. Participants attended a lab in the morning and then later in the afternoon to provide markers of hydration status (such as urine, blood samples and body weight). The relationship between levels of thirst in the morning and afternoon hydration status was negligible.
Further, thirst may be driven by environmental factors, such as access to water. For example, one study looked at whether ample access to water in a lab influenced how much people drank and how hydrated they were. The link between how thirsty they felt and how hydrated they were was weak, suggesting the availability of water influenced their fluid intake more than thirst.
Exercise can also change our thirst mechanism, though studies are limited at this stage.
Being thirsty doesn’t necessarily mean we’re dehydrated. puhhha/Shutterstock Interestingly, research shows women experience thirst more strongly than men, regardless of hydration status. To understand gender differences in thirst, researchers infused men and women with fluids and then measured their thirst and how hydrated they were. They found women generally reported thirst at a lower level of fluid loss. Women have also been found to respond more to feeling thirsty by drinking more water.
Other ways to tell if you need to drink some water
While acknowledging some people will need to drink more or less, for many people, eight cups (or two litres) a day is a good amount of water to aim for.
But beyond thirst, there are many other ways to tell whether you might need to drink more water.
1. urine colour: pale yellow urine typically indicates good hydration, while darker, concentrated urine suggests dehydration
2. frequency of going to the toilet: urinating regularly (around four to six times a day) indicates good hydration. Infrequent urination can signal dehydration
3. skin turgor test: gently pinching the skin (for example, on the back of the hand) and observing how quickly the skin returns to its normal position can help assess hydration. Slow return may indicate dehydration
If skin stays elevated after pinching it may be a sign of dehydration. SusaZoom/Shutterstock 4. mouth and lips: a dry mouth or cracked lips can be early signs of dehydration
5. headaches and fatigue: frequent headaches, dizziness, or unexplained fatigue can be signs of inadequate hydration
6. sweating: in physically active people, monitoring how much they sweat during activity can help estimate fluid loss and hydration needs. Higher levels of sweat may predispose a person to dehydration if they are unable to replace the fluid lost through water intake
These indicators, used together, provide a more comprehensive picture of hydration without solely depending on the sensation of thirst.
Of course, if you do feel thirsty, it’s still a good idea to drink some water.
Lauren Ball, Professor of Community Health and Wellbeing, The University of Queensland and Kiara Too, PhD candidate, School of Human Movement and Nutrition Sciences, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Optimism Seriously Increases Longevity!
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Always look on the bright side for life
❝I’m not a pessimist; I’m a realist!❞
~ every pessimist ever
To believe self-reports, the world is divided between optimists and realists. But how does your outlook measure up, really?
Below, we’ve included a link to a test, and like most free online tests, this is offered “as-is” with the usual caveats about not being a clinical diagnostic tool, this one actually has a fair amount of scientific weight behind it:
❝Empirical testing has indicated the validity of the Optimism Pessimism Instrument as published in the scientific journal Current Psychology: Research and Reviews.
The IDRlabs Optimism/Pessimism Test (IDR-OPT) was developed by IDRlabs. The IDR-OPT is based on the Optimism/Pessimism Instrument (OPI) developed by Dr. William Dember, Dr. Stephanie Martin, Dr. Mary Hummer, Dr. Steven Howe, and Dr. Richard Melton, at the University of Cincinnati.❞
Take This Short (1–2 mins) Test
How did you score? And what could you do to improve on that score?
We said before that we’d do a main feature on this sometime, and today’s the day! Fits with the theme of Easter too, as for those who observe, this is a time for a celebration of hope, new beginnings, and life stepping out of the shadows.
On which note, before we go any further, let’s look at a very big “why” of optimism…
There have been many studies done regards optimism and health, and they generally come to the same conclusion: optimism is simply good for the health.
Here’s an example. It’s a longitudinal study, and it followed 121,700 women (what a sample size!) for eight years. It controlled for all kinds of other lifestyle factors (especially smoking, drinking, diet, and exercise habits, as well as pre-existing medical conditions), so this wasn’t a case of “people who are healthy are more optimistic as a result. And, in the researchers’ own words…
❝We found strong and statistically significant associations of increasing levels of optimism with decreasing risks of mortality, including mortality due each major cause of death, such as cancer, heart disease, stroke, respiratory disease, and infection.
Importantly, findings were maintained after close control for potential confounding factors, including sociodemographic characteristics and depression❞
Read: Optimism and Cause-Specific Mortality: A Prospective Cohort Study
So that’s the why. Now for the how…
Positive thinking is not what you think it is
A lot of people think of “think positive thoughts” as a very wishy-washy platitude, but positive thinking isn’t about ignoring what’s wrong, or burying every negative emotion.
Rather, it is taking advantage of the basic CBT, DBT, and, for that matter, NLP principles:
- Our feelings are driven by our thoughts
- Our thoughts can be changed by how we frame things
This is a lot like the idea that “there’s not such thing as bad weather; only the wrong clothes”. Clearly written by someone who’s never been in a hurricane, but by and large, the principle stands true.
For example…
- Most problems can be reframed as opportunities
- Replace “I have to…” with “I get to…”
- Will the task be arduous? It’ll be all the better looking back on it.
- Did you fail abjectly? Be proud that you lived true to your values anyway.
A lot of this is about focusing on what you can control. If you live your life by your values (first figure out what they are, if you haven’t already), then that will become a reassuring thing that you can always count on, no matter what.
Practice positive self-talk (eliminate the negative)
We often learn, usually as children, to be self deprecatory so as to not appear immodest. While modesty certainly has its place, we don’t have to trash ourselves to do that!
There are various approaches to this, for example:
- Replacing a self-criticism (whether it was true or not) with a neutral or positive statement that you know is true. “I suck at xyz” is just putting yourself down, “Xyz is a challenge for me” asks the question, how will you rise to it?
- Replacing a self-criticism with irony. It doesn’t matter how dripping with sarcasm your inner voice is, the words will still be better. “Glamorous as ever!” after accidentally putting mascara in your eye. “So elegant and graceful!” after walking into furniture. And so on.
Practice radical acceptance
This evokes the “optimistic nihilism” approach to life. It’s perhaps not best in all scenarios, but if you’re consciously and rationally pretty sure something is going to be terrible (and/or know it’s completely outside of your control), acknowledging that possibility (or even, likelihood) cheerfully. Borrowing from the last tip, this can be done with as much irony as you find necessary. For example:
Facing a surgery the recovery from which you know categorically will be very painful: with a big smile “Yep, I am going to be in a lot of pain, so that’s going to be fun!” (fun fact: psychological misery will not make the physical pain any less painful, so you might as well see the funny side) ← see link for additional benefits laughter can add to health-related quality of life)
Plan for the future with love
You know the whole “planting trees in whose shade you’ll never sit”, thing, but: actually for yourself too. Plan (and act!) now, out of love and compassion for your future self.
Simple example: preparing (or semi-preparing, if appropriate) breakfast for yourself the night before, when you know in the morning you’ll be tired, hungry, and/or pressed for time. You’ll wake up, remember that you did that, and…
Tip: at moments like that, take a moment to think “Thanks, past me”. (Or call yourself by your name, whatever works for you. For example I, your writer here, might say to myself “Thanks, past Nastja!”)
This helps to build a habit of gratitude for your past self and love for your future self.
This goes for little things like the above, but it also goes for things whereby there’s much longer-term delayed gratification, such as:
- Healthy lifestyle changes (usually these see slow, cumulative progress)
- Good financial strategies (usually these see slow, cumulative progress)
- Long educational courses (usually these see slow, cumulative progress)
Basically: pay it forward to your future self, and thank yourself later!
Some quick ideas of systems and apps that go hard on the “long slow cumulative progress” approach that you can look back on with pride:
- Noom—nutritional program with a psychology-based approach to help you attain and maintain your goals, long term
- You Need A Budget—we’ve recommended it before and we’ll recommend it again. This is so good. If you click through, you can see a short explanation of what makes it so different to other budgeting apps.
- Duolingo—the famously persistence-motivational language learning app
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