Heart Rate Zones, Oxalates, & More

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It’s Q&A Day at 10almonds!

Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!

In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!

So, no question/request too big or small

❝I think the heart may be an issue for lots of us. I know it is for me due to AFib. When I’m in my training zone like on a treadmill, I’m usually around 110 to 120. But there are occasionally times when I’m at 140 or 150. How dangerous is that? If I use that formula of 180 minus age, thats 103. I get nothing from that. My resting heart rate is in the 50 to 60 range.❞

First, for safety, let us draw attention to our medical disclaimer at the bottom of each email, and also specifically note that we are not cardiologists here, let alone your cardiologist. There’s a lot we can’t know or advise about. However, as general rules of thumb:

For people without serious health conditions, it is considered good and healthful for one’s heart rate to double (from its resting rate) during exercise, with even more than 2.5x resting rate being nothing more than a good cardio workout.

As for “180 minus age” (presuming you mean: to calculate the safe maximum heart rate), more common (and used by the American Heart Association) is 220 minus age. In your case, that’d give 143.

Having atrial fibrillation may change this however, and we can’t offer medical advice.

We can point to this AHA “AFib Resources For Patients and Professionals”, including this handy FAQ sheet which says:

“Am I able to exercise?” / “Yes, as long as you’re cleared by your doctor, you can perform normal activities of daily living that you can tolerate” (accompanied by a little graphic of a person using an exercise bike)

You personally probably know this already, of course, but it’s quite an extensive collection of resources, so we thought we’d include it.

It’s certainly a good idea for everyone to be aware of their healthy heart rate ranges, regardless of having a known heart condition or not, though!

American Heart Association: Target Heart Rates Chart

❝I would like to see some articles on osteoporosis❞

You might enjoy this mythbusting main feature we did a few weeks ago!

The Bare-Bones Truth About Osteoporosis

❝Interesting, but… Did you know spinach is high in oxylates? Some people are sensitive and can cause increased inflammation, joint pain or even kidney stones. Moderation is key. My sister and I like to eat healthy but found out by experience that too much spinach salad caused us joint and other aches.❞

It’s certainly good to be mindful of such things! For most people, a daily serving of spinach shouldn’t cause ill effects, and certainly there are other greens to eat.

We wondered whether there was a way to reduce the oxalate content, and we found:

How to Reduce Oxalic Acid in Spinach: Neutralizing Oxalates

…which led us this product on Amazon:

Nephure Oxalate Reducing Enzyme, Low Oxalate Diet Support

We wondered what “nephure” was, and whether it could be trusted, and came across this “Supplement Police” article about it:

Nephure Review – Oxalate Reducing Enzyme Powder Health Benefits?

…which honestly, seems to have been written as a paid advertisement. But! It did reference a study, which we were able to look up, and find:

In vitro and in vivo safety evaluation of Nephure™

…which seems to indicate that it was safe (for rats) in all the ways that they checked. They did not, however, check whether it actually reduced oxalate content in spinach or any other food.

The authors did declare a conflict of interest, in that they had a financial relationship with the sponsor of the study, Captozyme Inc.

All in all, it may be better to just have kale instead of spinach:

We turn the tables and ask you a question!

We’ll then talk about this tomorrow:

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  • I can’t afford olive oil. What else can I use?

    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.

    If you buy your olive oil in bulk, you’ve likely been in for a shock in recent weeks. Major supermarkets have been selling olive oil for up to A$65 for a four-litre tin, and up to $26 for a 750 millilitre bottle.

    We’ve been hearing about the health benefits of olive oil for years. And many of us are adding it to salads, or baking and frying with it.

    But during a cost-of-living crisis, these high prices can put olive oil out of reach.

    Let’s take a look at why olive oil is in demand, why it’s so expensive right now, and what to do until prices come down.

    Joyisjoyful/Shutterstock

    Remind me, why is olive oil so good for you?

    Including olive oil in your diet can reduce your risk of developing type 2 diabetes and improve heart health through more favourable blood pressure, inflammation and cholesterol levels.

    This is largely because olive oil is high in monounsaturated fatty acids and polyphenols (antioxidants).

    Some researchers have suggested you can get these benefits from consuming up to 20 grams a day. That’s equivalent to about five teaspoons of olive oil.

    Why is olive oil so expensive right now?

    A European heatwave and drought have limited Spanish and Italian producers’ ability to supply olive oil to international markets, including Australia.

    This has been coupled with an unusually cold and short growing season for Australian olive oil suppliers.

    The lower-than-usual production and supply of olive oil, together with heightened demand from shoppers, means prices have gone up.

    Green olives on tree
    We’ve seen unfavourable growing conditions in Europe and Australia. KaMay/Shutterstock

    How can I make my olive oil go further?

    Many households buy olive oil in large quantities because it is cheaper per litre. So, if you have some still in stock, you can make it go further by:

    • storing it correctly – make sure the lid is on tightly and it’s kept in a cool, dark place, such as a pantry or cabinet. If stored this way, olive oil can typically last 12–18 months
    • using a spray – sprays distribute oil more evenly than pourers, using less olive oil overall. You could buy a spray bottle to fill from a large tin, as needed
    • straining or freezing it – if you have leftover olive oil after frying, strain it and reuse it for other fried dishes. You could also freeze this used oil in an airtight container, then thaw and fry with it later, without affecting the oil’s taste and other characteristics. But for dressings, only use fresh oil.

    I’ve run out of olive oil. What else can I use?

    Here are some healthy and cheaper alternatives to olive oil:

    • canola oil is a good alternative for frying. It’s relatively low in saturated fat so is generally considered healthy. Like olive oil, it is high in healthy monounsaturated fats. Cost? Up to $6 for a 750mL bottle (home brand is about half the price)
    • sunflower oil is a great alternative to use on salads or for frying. It has a mild flavour that does not overwhelm other ingredients. Some studies suggest using sunflower oil may help reduce your risk of heart disease by lowering LDL (bad) cholesterol and raising HDL (good) cholesterol. Cost? Up to $6.50 for a 750mL bottle (again, home brand is about half the price)
    • sesame oil has a nutty flavour. It’s good for Asian dressings, and frying. Light sesame oil is typically used as a neutral cooking oil, while the toasted type is used to flavour sauces. Sesame oil is high in antioxidants and has some anti-inflammatory properties. Sesame oil is generally sold in smaller bottles than canola or sunflower oil. Cost? Up to $5 for a 150mL bottle.
    Rows of vegetable oil bottles
    There are plenty of alternative oils you can use in salads or for frying. narai chal/Shutterstock

    How can I use less oil, generally?

    Using less oil in your cooking could keep your meals healthy. Here are some alternatives and cooking techniques:

    • use alternatives for baking – unless you are making an olive oil cake, if your recipe calls for a large quantity of oil, try using an alternative such as apple sauce, Greek yoghurt or mashed banana
    • use non-stick cookware – using high-quality, non-stick pots and pans reduces the need for oil when cooking, or means you don’t need oil at all
    • steam instead – steam vegetables, fish and poultry to retain nutrients and moisture without adding oil
    • bake or roast – potatoes, vegetables or chicken can be baked or roasted rather than fried. You can still achieve crispy textures without needing excessive oil
    • grill – the natural fats in meat and vegetables can help keep ingredients moist, without using oil
    • use stock – instead of sautéing vegetables in oil, try using vegetable broth or stock to add flavour
    • try vinegar or citrus – use vinegar or citrus juice (such as lemon or lime) to add flavour to salads, marinades and sauces without relying on oil
    • use natural moisture – use the natural moisture in ingredients such as tomatoes, onions and mushrooms to cook dishes without adding extra oil. They release moisture as they cook, helping to prevent sticking.

    Lauren Ball, Professor of Community Health and Wellbeing, The University of Queensland and Emily Burch, Accredited Practising Dietitian and Lecturer, Southern Cross University

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • This Naked Mind – by Annie Grace

    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.

    We’ve all read about the many, many, dangers of drinking. We’ve also probably all read about how to make the change to not drinking. Put things out of sight, tell your friends, have this rule, have this excuse (for not drinking) ready to give to people who challenge you, consider a support group, and so on.

    What Annie Grace offers in this #1 bestseller is different:

    A blend of mostly psychology and sociology, to examine the “liminal thinking” stages that funnel us to drink in the first place… and where that leads, and how to clamber back out of the pitcher plant we weren’t necessarily aware we were sliding into.

    While she kicks off citing Jung, from a psychological perspective more of this book is CBTish, as it pertains a lot to examining the process of:

    • belief—held and defended, based on the…
    • conclusion—drawn, often irrationally, from the…
    • experience—that we had upon acting on an…
    • observation—often mistaking an illusion for the underlying…
    • reality

    …and how we can and often do go wrong at each step, and how little of the previous steps we can perceive at any given time.

    What does this mean for managing/treating alcoholism or a tendency towards alchoholism?

    It means interrupting those processes in a careful, surgically precise fashion, so that suddenly… The thing has no more power over us.

    Whether you or a loved one struggle with a tendency to addiction (any addiction, actually, the advice goes the same), or are just curious about the wider factors at hand in the epidemiology of addiction, this book is for you.

    Get a copy of “This Naked Mind” from Amazon today!

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  • Grain Brain – by Dr. David Perlmutter

    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.

    If you’re a regular 10almonds reader, you probably know that refined flour, and processed food in general, is not great for the health. So, what does this book offer more?

    Dr. Perlmutter sets out the case against (as the subtitle suggests) wheat, carbs, and sugar. Yes, including wholegrain wheat, and including starchy vegetables such as potatoes and parsnips. Fruit does also come under scrutiny, a clear distinction is made between whole fruits and juices. In the latter case, the lack of fiber (along with the more readily absorbable liquid state) allows for those sugars to zip straight into our blood.

    The book includes lots of stats and facts, and many study citations, along with infographics and clear explanations.

    If the book has a weakness, it’s when it forgets to clarify something that was obvious to the author. For example, when he talks about our ancestors’ diets being 75% fat and 5% carbs, he neglects to mention that this is 75% by calorie count, not by mass or volume. This makes a huge difference! It’s the difference between a fat-guzzling engine, and someone who eats mostly fruit and oily nuts but also some very high-fat meat/organs.

    The book’s strengths, on the other hand, are found in its explanation, backed by good science, of what wheat, along with excessive carbohydrates (especially sugar) can do to our body, including (and most focusedly, hence the title) our brain, leading the way to not just obvious metabolic disorders like diabetes, but also inflammatory diseases like Alzheimer’s.

    Bottom line: you don’t have to completely revamp your diet if it’s working for you, but data is data, and this book has lots, making it well-worth a read.

    Click here to check out Grain Brain, and learn about how to avoid inflaming yours!

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Related Posts

  • What Are “Adaptogens” Anyway? (And Other Questions Answered)
  • The Dark Side Of Memory (And How To Make Your Life Better)

    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.

    How To Stop Revisiting Those Memories

    We’ve talked before about putting the brakes on negative thought spirals (and that’s a really useful technique, so if you weren’t with us yet for that one, we do recommend hopping back and reading it!).

    We’ve also talked about optimizing memory, to include making moments unforgettable.

    But what about the moments we’d rather forget?

    First, a quick note: we have no pressing wish or need to re-traumatize any readers, so if you’ve a pressing reason to think your memories you’d rather forget are beyond the scope of a few hundred words “one quick trick” in a newsletter, feel free to skip this section today.

    One more quick note: it is generally not considered healthy to repress important memories. Some things are best worked through consciously in therapy with a competent professional.

    Today’s technique is more for things in the category of “do you really need to keep remembering that one time you did something embarrassing 20 years ago?”

    That said… sometimes, even when it does come to the management of serious PTSD, therapy can (intentionally, reasonably) throw in the towel on processing all of something big, and instead seek to simply look at minimizing its effect on ongoing life. Again, that’s best undertaken with a well-trained professional, however.

    For more trivial annoyances, meanwhile…

    Two Steps To Forgetting

    The first step:

    You may remember that memories are tied to the senses, and the more senses are involved, the more easily and fully we remember a thing. To remember something, therefore, we make sure to pay full attention to all the sensory experience of the memory, bringing in all 5 senses if possible.

    To forget, the reverse is true. Drain the memory of color, make it black and white, fuzzier, blurrier, smaller, further away, sterile, silent, gone.

    You can make a habit of doing this automatically whenever your unwanted memory resurfaces.

    The second missing step:

    This is the second step, but it’s going to be a missing step. Memories, like paths in a forest, are easier to access the more often we access them. A memory we visit every day will have a well-worn path, easy to follow. A memory we haven’t visited for decades will have an overgrown, sometimes nearly impossible-to-find path.

    To labor the metaphor a little: if your memory has literal steps leading to it, we’re going to remove one of the steps now, to make it very difficult to access accidentally. Don’t worry, you can always put the step back later if you want to.

    Let’s say you want to forget something that happened once upon a time in a certain workplace. Rather than wait for the memory in question to come up, we’re going to apply the first step that we just learned, to the entire workplace.

    So, in this example, you’d make the memory of that workplace drained of color, made black and white, fuzzier, blurrier, smaller, further away, sterile, silent, gone.

    Then, you’d make a habit of doing that whenever that workplace nearly comes to mind.

    The result? You’re unlikely to accidentally access a memory that occurred in that workplace, if even mentally wandering to the workplace itself causes it to shrivel up and disappear like paper in fire.

    Important reminder

    The above psychological technique is to psychological trauma what painkillers are to physical pain. It can ease the symptom, while masking the cause. If it’s something serious, we recommend enlisting the help of a professional, rather than “self-medicating” in this fashion.

    If it’s just a small annoying thing, though, sometimes it’s easier to just be able to refrain from prodding and poking it daily, forget about it, and enjoy life.

    Don’t Forget…

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  • Fruit, Fiber, & Leafy Greens… On A Low-FODMAP Diet!

    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.

    Fiber For FODMAP-Avoiders

    First, let’s quickly cover: what are FODMAPs?

    FODMAPs are fermentable oligosaccharides, disaccharides, monosaccharides, and polyols.

    In plainer English: they’re carbohydrates that are resistant to digestion.

    This is, for most people most of the time, a good thing, for example:

    When Is A Fiber Not A Fiber? When It’s A Resistant Starch.

    Not for everyone…

    However, if you have inflammatory bowel syndrome (IBS), including ulcerative colitis, Crohn’s disease, or similar, then suddenly a lot of common dietary advice gets flipped on its head:

    Dietary Intolerances & More

    While digestion-resistant carbohydrates making it to the end parts of our digestive tract are good for our bacteria there, in the case of people with IBS or similar, it can be a bit too good for our bacteria there.

    Which can mean gas (a natural by-product of bacterial respiration) accumulation, discomfort, water retention (as the pseudo-fiber draws water in and keeps it), and other related symptoms, causing discomfort, and potentially disease such as diarrhea.

    Again: for most people this is not so (usually: quite the opposite; resistant starches improve things down there), but for those for whom it’s a thing, it’s a Big Bad Thing™.

    Hold the veg? Hold your horses.

    A common knee-jerk reaction is “I will avoid fruit and veg, then”.

    Superficially, this can work, as many fruit & veg are high in FODMAPs (as are fermented dairy products, by the way).

    However, a diet free from fruit and veg is not going to be healthy in any sustainable fashion.

    There are, however, options for low-FODMAP fruit & veg, such as:

    Fruits: bananas (if not overripe), kiwi, grapefruit, lemons, limes, melons, oranges, passionfruit, strawberries

    Vegetables: alfalfa, bell peppers, bok choy, carrots, celery, cucumbers, eggplant, green beans, kale, lettuce, olives, parsnips, potatoes (and sweet potatoes, yams etc), radishes, spinach, squash, tomatoes*, turnips, zucchini

    *our stance: botanically it’s a fruit, but culinarily it’s a vegetable.

    For more on the science of this, check out:

    Strategies for Producing Low FODMAPs Foodstuffs: Challenges and Perspectives ← table 2 is particularly informative when it comes to the above examples, and table 3 will advise about…

    Bonus

    Grains: oats, quinoa, rice, tapioca

    …and wheat if the conditions in table 3 (linked above) are satisfied

    (worth mentioning since grains also get a bad press when it comes to IBS, but that’s mostly because of wheat)

    See also: Gluten: What’s The Truth?

    Enjoy!

    Don’t Forget…

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  • All In Your Head (Which Is Where It’s Supposed To Be)

    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.

    Today’s news is all about things above the neck, and mostly in the brain. From beating depression to beating cognitive decline, from mindfulness against pain to dentistry nightmares to avoid:

    Transcranial ultrasound stimulation

    Transcranial magnetic stimulation is one of those treatments that sounds like it’s out of a 1950s sci-fi novel, and yet, it actually works (it’s very well-evidenced against treatment-resistant depression, amongst other things). However, a weakness of it is that it’s difficult to target precisely, making modulation of most neurological disorders impossible. Using ultrasound instead of a magnetic field allows for much more finesse, with very promising initial results across a range of neurological disorders

    Read in full: Transcranial ultrasound stimulation: a new frontier in non-invasive brain therapy

    Related: Antidepressants: Personalization Is Key!

    This may cause more pain and damage, but at least it’s more expensive too…

    While socialized healthcare systems sometimes run into the problem of not wanting to spend money where it actually is needed, private healthcare systems have the opposite problem: there’s a profit incentive to upsell to more expensive treatments. Here’s how that’s played out in dentistry:

    Read in full: Dentists are pulling healthy and treatable teeth to profit from implants, experts warn

    Related: Tooth Remineralization: How To Heal Your Teeth Naturally

    Mindfulness vs placebo, for pain

    It can be difficult with some “alternative therapies” to test against placebo, for example “and control group B will merely believe that they are being pierced with needles”, etc. However, in this case, mindfulness meditation was tested as an analgesic vs sham meditation (just deep breathing) and also vs placebo analgesic cream, vs distraction (listening to an audiobook). Mindfulness meditation beat all of the other things:

    Read in full: Mindfulness meditation outperforms placebo in reducing pain

    Related: No-Frills, Evidence-Based Mindfulness

    Getting personal with AI doctors

    One of the common reasons that people reject AI doctors is the “lack of a human touch”. However, human and AI doctors may be meeting in the middle nowadays, as humans are pressed to see more patients in less time, and AI is trained to be more personal—not just a friendlier affect, but also, such things as remembering the patient’s previous encounters (again, something with which overworked human doctors sometimes struggle). This makes a big difference to patient satisfaction:

    Read in full: Personalization key to patient satisfaction with AI doctors

    Related: AI: The Doctor That Never Tires?

    Combination brain therapy against cognitive decline

    This study found that out of various combinations trialled, the best intervention against cognitive decline was a combination of 1) cognitive remediation (therapeutic interventions designed to improve cognitive functioning, like puzzles and logic problems), and 2) transcranial direct current stimulation (tDCS), a form of non-invasive direct brain stimulation, similar to the magnetic or ultrasound methods we mentioned earlier today. Here’s how it worked:

    Read in full: Study reveals effective combination therapy to slow cognitive decline in older adults

    Related: How To Reduce Your Alzheimer’s Risk

    Take care!

    Don’t Forget…

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