How Much Does A Vegan Diet Affect Biological Aging?
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Slow Your Aging, One Meal At A Time
This one’s a straightforward one today, and the ““life hack” can be summed up:
Enjoy a vegan diet to enjoy younger biological age.
First, what is biological age?
Biological age is not one number, but a collection of numbers, as per different biomarkers of aging, including:
- Visual markers of aging (e.g. wrinkles, graying hair)
- Performative markers of aging (e.g. mobility tests)
- Internal functional markers of aging (e.g. tests for cognitive decline, eyesight, hearing, etc)
- Cellular markers of aging (e.g. telomere length)
We wrote more about this here:
Age & Aging: What Can (And Can’t) We Do About It?
A vegan diet may well impact multiple of those categories of aging, but today we’re highlighting a study (hot off the press; published only a few days ago!) that looks at its effect on that last category: cellular markers of aging.
There’s an interesting paradox here, because this category is:
- the most easily ignorable; because we all feel it if our knees are giving out or our skin is losing elasticity, but who notices if telomeres’ T/S ratio changed by 0.0407? ← the researchers, that’s who, as this difference is very significant
- the most far-reaching in its impact, because cellular aging in turn has an effect on all the other markers of aging
Second, how much difference does it make, and how do we know?
The study was an eight-week interventional identical twin study. This means several things, to start with:
- Eight weeks is a rather short period of time to accumulate cellular aging, let alone for an intervention to accumulate a significant difference in cellular aging—but it did. So, just imagine what difference it might make in a year or ten!
- Doing an interventional study with identical twin pairs already controlled for a lot of factors, that are usually confounding variables in population / cohort / longitudinal / observational studies.
Factors that weren’t controlled for by default by using identical twins, were controlled for in the experiment design. For example, twin pairs were rejected if one or more twin in a given pair already had medical conditions that could affect the outcome:
❝Inclusion criteria involved participants aged ≥18, part of a willing twin pair, with BMI <40, and LDL-C <190 mg/dL. Exclusions included uncontrolled hypertension, metabolic disease, diabetes, cancer, heart/renal/liver disease, pregnancy, lactation, and medication use affecting body weight or energy.
Eligibility was determined via online screening, followed by an orientation meeting and in-person clinic visit. Randomization occurred only after completing baseline visits, dietary recalls, and questionnaires for both twins❞
~ Dr. Varun Dwaraka et al. ← there’s a lot of “et al.” to this one; the paper had 16 collaborating authors!
As to the difference it made over the course of the 8 weeks…
❝Various measures of epigenetic age acceleration (PC GrimAge, PC PhenoAge, DunedinPACE) were assessed, along with system-specific effects (Inflammation, Heart, Hormone, Liver, and Metabolic).
Distinct responses were observed, with the vegan cohort exhibiting significant decreases in overall epigenetic age acceleration, aligning with anti-aging effects of plant-based diets. Diet-specific shifts were noted in the analysis of methylation surrogates, demonstrating the influence of diet on complex trait prediction through DNA methylation markers.❞
~ Ibid.
You can read the whole paper here (it goes into a lot more detail than we have room to here, and also gives infographics, charts, numbers, the works):
Were they just eating more healthily, though?
Well, arguably yes, as the results show, but to be clear:
The omnivorous diet compared to the vegan diet in this study was also controlled; both groups were given a healthy meal plan for their respective diet. So this wasn’t a case of “any omnivorous diet vs healthy vegan diet”, but rather “healthy omnivorous diet vs healthy vegan diet”.
Again, the paper itself has the full details—a short version is that it involved a healthy meal kit delivery service, followed by ongoing dietician involvement in an equal and carefully-controlled fashion.
So, aside from that one group had an omnivorous meal plan and the other vegan, both groups received the same level of “healthy eating” support, guidance, and oversight.
But isn’t [insert your preferred animal product here] healthy?
Quite possibly! For general health, general scientific consensus is that eating at least mostly plants is best, red meat is bad, poultry is neutral in moderation, fish is good in moderation, dairy is good in moderation if fermented, eggs are good in moderation if not fried.
This study looked at the various biomarkers of aging that we listed, and not every possible aspect of health—there’s more science yet to be done, and the researchers themselves are calling for it.
It also bears mentioning that for some (relatively few, but not insignificantly few) people, extant health conditions may make a vegan diet unhealthy or otherwise untenable. Do speak with your own doctor and/or dietician if unsure.
See also: Do We Need Animal Products To Be Healthy?
We would hypothesize, by the way, that the anti-aging benefits of a vegan diet are probably proportional to abstention from animal products—meaning that even if you simply have some “vegan days”, while still consuming animal products other days, you’ll still get benefit for the days you abstained. That’s just our hypothesis though.
Take care!
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Only walking for exercise? Here’s how to get the most out of it
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We’re living longer than in previous generations, with one in eight elderly Australians now aged over 85. But the current gap between life expectancy (“lifespan”) and health-adjusted life expectancy (“healthspan”) is about ten years. This means many of us live with significant health problems in our later years.
To increase our healthspan, we need planned, structured and regular physical activity (or exercise). The World Health Organization recommends 150–300 minutes of moderate-intensity exercise – such as brisk walking, cycling and swimming – per week and muscle strengthening twice a week.
Yet few of us meet these recommendations. Only 10% meet the strength-training recommendations. Lack of time is one of the most common reasons.
Walking is cost-effective, doesn’t require any special equipment or training, and can be done with small pockets of time. Our preliminary research, published this week, shows there are ways to incorporate strength-training components into walking to improve your muscle strength and balance.
Why walking isn’t usually enough
Regular walking does not appear to work as muscle-strengthening exercise.
In contrast, exercises consisting of “eccentric” or muscle-lengthening contractions improve muscle strength, prevent muscle wasting and improve other functions such as balance and flexibility.
Typical eccentric contractions are seen, for example, when we sit on a chair slowly. The front thigh muscles lengthen with force generation.
When you sit down slowly on a chair, the front thigh muscles lengthen.
buritora/ShutterstockOur research
Our previous research found body-weight-based eccentric exercise training, such as sitting down on a chair slowly, improved lower limb muscle strength and balance in healthy older adults.
We also showed walking down stairs, with the front thigh muscles undergoing eccentric contractions, increased leg muscle strength and balance in older women more than walking up stairs. When climbing stairs, the front thigh muscles undergo “concentric” contractions, with the muscles shortening.
It can be difficult to find stairs or slopes suitable for eccentric exercises. But if they could be incorporated into daily walking, lower limb muscle strength and balance function could be improved.
This is where the idea of “eccentric walking” comes into play. This means inserting lunges in conventional walking, in addition to downstairs and downhill walking.
In our new research, published in the European Journal of Applied Physiology, we investigated the effects of eccentric walking on lower limb muscle strength and balance in 11 regular walkers aged 54 to 88 years.
The intervention period was 12 weeks. It consisted of four weeks of normal walking followed by eight weeks of eccentric walking.
The number of eccentric steps in the eccentric walking period gradually increased over eight weeks from 100 to 1,000 steps (including lunges, downhill and downstairs steps). Participants took a total of 3,900 eccentric steps over the eight-week eccentric walking period while the total number of steps was the same as the previous four weeks.
We measured the thickness of the participants’ front thigh muscles, muscle strength in their knee, their balance and endurance, including how many times they could go from a sitting position to standing in 30 seconds without using their arms. We took these measurements before the study started, at four weeks, after the conventional walking period, and at four and eight weeks into the eccentric walking period.
We also tested their cognitive function using a digit symbol-substitution test at the same time points of other tests. And we asked participants to complete a questionnaire relating to their activities of daily living, such as dressing and moving around at home.
Finally, we tested participants’ blood sugar, cholesterol levels and complement component 1q (C1q) concentrations, a potential marker of sarcopenia (muscle wasting with ageing).
Regular walking won’t contract your muscles in the same way as eccentric walking.
alexei_tm/ShutterstockWhat did we find?
We found no significant changes in any of the outcomes in the first four weeks when participants walked conventionally.
From week four to 12, we found significant improvements in muscle strength (19%), chair-stand ability (24%), balance (45%) and a cognitive function test (21%).
Serum C1q concentration decreased by 10% after the eccentric walking intervention, indicating participants’ muscles were effectively stimulated.
The sample size of the study was small, so we need larger and more comprehensive studies to verify our findings and investigate whether eccentric walking is effective for sedentary people, older people, how the different types of eccentric exercise compare and the potential cognitive and mental health benefits.
But, in the meantime, “eccentric walking” appears to be a beneficial exercise that will extend your healthspan. It may look a bit eccentric if we insert lunges while walking on the street, but the more people do it and benefit from it, the less eccentric it will become.
Ken Nosaka, Professor of Exercise and Sports Science, Edith Cowan University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Relieve GERD and Acid Reflux with Stretches and Exercises
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Looking for relief from GERD or acid reflux? Today we’re featuring an amazing video by Dr. Jo, packed with stretches and exercises designed to ease those symptoms.
Here’s a quick rundown, in case you don’t have time to watch the whole video.
If you’re not familiar with GERD, you can find our simple explanation of GERD here. Or, if you’re on the other end of the spectrum and want to do a deeper dive on the topic, we reviewed a great book on the topic).
1. Mobilize Your SEM Muscle
The sternocleidomastoid (SEM) muscle, if tight, can aggravate acid reflux. Dr. Jo shows how to gently mobilize this muscle by turning your head while holding the SEM in place. It’s simple but effective.
2. Portrait Pose Stretch
Stretch out that SEM with the Portrait Pose. Place your hand on your collarbone, turn your head away, side bend, and look up. Hold for 30 seconds. You’ll feel the tension melting away.
3. Seated Cat-Cow Motion
Open up your stomach area with this easy exercise. Sit down, roll your body forward, arch your back (Cow), then curl your spine and tuck your chin (Cat). Alternate for 30 seconds and feel the difference.
4. Quadruped Cat-Cow with Breathing
Similar to the seated cat-cow, the quadruped cat-cow focuses on flexing the lower spine whilst on all fours. Bonus tip: focus on deep belly breathing during the exercise. This helps improve digestion and ease reflux symptoms.
5. Exaggerated Pelvic Tilt
Lie on your back and tilt your pelvis back and forth. This loosens up the abdominal area and helps everything flow better.
6. Trunk Rotation
Lie down, bend your knees, and rotate them to one side. Hold for 30 seconds, then switch sides. It’s a great way to relax and stretch your abdominal muscles.
We know this is a quick overview (sorry if it seems rushed!), but if you have a few more minutes on your hand you can watch the whole video below.
Feel better soon! And if you have any favorite tips or videos to share, email us at 10almonds.
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Turmeric: Raw Root, Powder, Tea, Or…?
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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 turmeric infused water better or chewing half an inch of raw turmeric better? I am trying to work on my immunity as this year I have suffered the most with my allergies in the last 20 years. In case you can guide me, I will be thankful.❞
Great question! First of all, a quick recap of the properties of turmeric (and its relevant active compound, curcumin)
Let’s do a quick run-down:
- It fights inflammation, and thus helps fight many diseases where inflammation is a factor (ranging from atherosclerosis to arthritis to Alzheimer’s and more)
- It has powerful antioxidant effects too
- It boosts brain-derived neurotropic factor (BDNF) and thus improves memory and attention
- It helps protect against heart disease…
- …and can give a 65% decreased risk of experiencing a heart attack
- It can help prevent cancer, and reduce cancerous lesions by 40%
- It’s also good against depression
- It even slows aging
If you take curcumin with black pepper, it allows your body to use the curcumin around 2,000% better. This goes whether you’re cooking with both, or take them as a supplement (they’re commonly sold as a combo-capsule for this reason).
Note: you mentioned an infusion or chewing the root, so perhaps you are not having black pepper with either of those. That’s fine, but try to have it near to black pepper (for example, perhaps while cooking a meal in which you use black pepper, so you take the turmeric and then you eat the meal).
Extra note: in fact, that’s ideal, because curcumin is fat-soluble, so having it with (or near in time to) consuming fats (such as perhaps used in cooking) is a great way to do it.
Curcumin vs allergies, specifically
For any thinking “that wasn’t on the list”… It was hidden! It comes with curcumin’s anti-inflammatory and antioxidant powers.
See for example:
- Modulation of the Immune Response to Allergies Using Alternative Functional Foods ← turmeric is one of the functional foods discussed
- Turmeric extract alleviates airway inflammation via oxidative stress-driven MAPKs/MMPs pathway ← this is important to dial down an inappropriate immune response, e.g. an allergy
- Dietary Polyphenols, Plant Metabolites, and Allergic Disorders: A Comprehensive Review ← again, turmeric is a key player
- Development of fast-dissolving sublingual nanofibers containing allergen and curcumin for immune response modulation in a mouse model of allergic rhinitis ← allergic rhinitis = “seasonal allergies” and similar respiratory allergic responses
- DES/O microemulsion for solubilizing and delivering curcumin via the nasal administration to treat acute asthma ← similar mechanism of action
food vs supplement
You didn’t ask this, but it’ll be helpful for understanding if we quickly cover this first.
- Turmeric root is just that: a root, which contains abundant phytochemicals, and/but is not at all standardized in dosage
- Curcumin extract, on the other hand, have been standardized, optimized, and are metabolized much more quickly
…which latter can be a problem, because it’s been taken apart and used for scrap metabolites faster than the body could actually make use of the curcumin as-is.
The black pepper hack fixes this, by the way, because of how it improves absorption.
You may be thinking: isn’t this going to cause the same problem you were just talking about, and cause it to be metabolized too quickly? And the answer is: no! How piperine works is almost the opposite; it protects the curcumin in the turmeric from our digestive enzymes, and thus allows them to get absorbed without being broken down too quickly—thus increasing the bioavailability by slowing the process down.
In short: food is best, but supplements are fine for anyone whose local supermarkets don’t sell turmeric root. Make sure to get it from a vendor who has transparency about their processes and has reputable certifications against heavy metal contamination though, because that’s especially common in cheap turmeric/curcumin supplements.
The different ways of taking it
There are a few more options than those you mentioned, so let’s quickly note:
- Infusion: the chopped/grated root is steeped in hot water, and then we drink the hot water (sometimes called “turmeric tea”) and discard the solids
- Suspension: the dried, powdered root is mixed in water, which we then drink in its entirety
- Decoction: the finely chopped/grated root is steeped in hot water, and then we consume this in its entirety, which most people don’t find pleasant
- Mastication only: chewing the root, spitting out the fibrous remnants
- Solid ingestion: eating the root
All of these will allow you to gain the benefits of curcumin (wherever that yellow-red pigment goes, so goes the curcumin), but only those which include consuming the solids will give you the full benefit (as otherwise, you are discarding a large amount of the curcumin with the solids that you discard).
So, we can remove both of the methods that you mentioned (infusion and chewing, assuming you meant chewing only, and not eating).
Things tend to lose potency with drying and grinding processes, not to mention long-term storage, so we can also remove suspension from the list.
That leaves decoction and solid ingestion. Since solid ingestion is not comfortable for most people without cooking the root, that leaves decoction as the superior method unless you personally are happy to just eat raw turmeric root.
However!
Out of the two you presented, infusion can be improved if a) you make the infusion very strong, by grating the root before steeping, and letting it steep for a good while, and b) if practical, throw the grated root (after pouring the tea) into a dish where its flavor will be appropriate. If this seems strange, like throwing a waste product into your meal, then remember that that’s only a matter of convention: physically, what it is is cooked (boiling is cooking!) grated turmeric, nothing more nor less.
At the end of the day though, the way that works best will be the way that you enjoy most (or if that’s not an option, dislike least), and thus will do more often.
Want to know more?
Check out:
Turmeric (Curcumin) Dos and Don’ts With Dr. Kim
Enjoy!
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Genius Foods – by Max Lugavere
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There is a lot of seemingly conflicting (or sometimes: actually conflicting!) information out there with regard to nutrition and various aspects of health. Why, for example, are we told:
- Be sure to get plenty of good healthy fats from nuts and seeds, for metabolic health and brain health too!
- But these terrible nut and seed oils lead to heart disease and dementia! Avoid them at all costs!
Max Lugavere demystifies this and more.
His science-led approach is primarily focused on avoiding dementia, and/but is at least not bad when it comes to other areas of health too.
He takes us on a tour of different parts of our nutrition, including:
- Perhaps the clearest explanation of “healthy” vs “unhealthy” fats this reviewer has read
- Managing carbs (simple and complex) for healthy glucose management—essential for good brain health
- What foods to improve or reduce—a lot you might guess, but this is a comprehensive guide to brain health so it’d be remiss to skip it
- The role that intermittent fasting can play as a bonus extra
While the main thrust of the book is about avoiding cognitive impairment in the long-term (including later-life dementia), he makes good, evidence-based arguments for how this same dietary plan improves cognitive function in the short-term, too.
Speaking of that dietary plan: he does give a step-by-step guide in a “make this change first, then this, then this” fashion, and offers some sample recipes too. This is by no means a recipe book though—most of the book is taking us through the science, not the kitchen.
Bottom line: this is the book for getting unconfused with regard to diet and brain health, making a lot of good science easy to understand. Which we love!
Click here to check out “Genius Foods” on Amazon today, give your brain a boost!
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The Easiest Way To Take Up Journaling
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Dear Diary…
It’s well-established that journaling is generally good for mental health. It’s not a magical panacea, as evidenced by The Diaries of Franz Kafka for example (that man was not in good mental health). But for most of us, putting our thoughts and feelings down on paper (or the digital equivalent) is a good step for tidying our mind.
And as it can be said: mental health is also just health.
But…
What to write about?
It’s about self-expression (even if only you will read it), and…
❝Writing about traumatic, stressful or emotional events has been found to result in improvements in both physical and psychological health, in non-clinical and clinical populations.
In the expressive writing paradigm, participants are asked to write about such events for 15–20 minutes on 3–5 occasions.
Those who do so generally have significantly better physical and psychological outcomes compared with those who write about neutral topics.❞
Source: Emotional and physical health benefits of expressive writing
In other words, write about whatever moves you.
Working from prompts
If you read the advice above and thought “but I don’t know what moves me”, then fear not. It’s perfectly respectable to work from prompts, such as:
- What last made you cry?
- What last made you laugh?
- What was a recent meaningful moment with family?
- What is a serious mistake that you made and learned from?
- If you could be remembered for just one thing, what would you want it to be?
In fact, sometimes working from prompts has extra benefits, precisely because it challenges us to examine things we might not otherwise think about.
If a prompt asks “What tends to bring you most joy recently?” and the question stumps you, then a) you now are prompted to look at what you can change to find more joy b) you probably wouldn’t have thought of this question—most depressed people don’t, and if you cannot remember recent joy, then well, we’re not here to diagnose, but let’s just say that’s a symptom.
A quick aside: if you or a loved oneare prone to depressive episodes, here’s a good resource, by the way:
The Mental Health First-Aid That You’ll Hopefully Never Need
And in the event of the mental health worst case scenario:
The six prompts we gave earlier are just ideas that came to this writer’s mind, but they’re (ok, some bias here) very good ones. If you’d like more though, here’s a good resource:
550+ Journal Prompts: The Ultimate List
The Good, The Bad, and The Ugly
While it’s not good to get stuck in ruminative negative thought spirals, it is good to have a safe outlet to express one’s negative thoughts/feelings:
Remember, your journal is (or ideally, should be) a place without censure. If you fear social consequences should your journal be read, then using an app with a good security policy and encryption options can be a good idea for journaling
Finch App is a good free option if it’s not too cutesy for your taste, because in terms of security:
- It can’t leak your data because your data never leaves your phone (unless you manually back up your data and then you choose to put it somewhere unsafe)
- It has an option to require passcode/biometrics etc to open the app
As a bonus, it also has very many optional journaling prompts, and also (optional) behavioral activation prompts, amongst more other offerings that we don’t have room to list here.
Take care!
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The Power of Fun – by Catherine Price
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It’s said that nobody’s dying regret is to wish they’d spent more time at the office, yet many of don’t make enough time for fun.
This book has been published with two different subtitles:
- Why fun is the key to a happy and healthy life
- How to feel alive again
One offers a sensible reason to read this book; the other offers a deeply emotional reason. Both are entirely valid.
Catherine Price sets out in this work to identify what fun actually is (she puts it at the intersection of playfulness, connection and flow) and how to have more of it (she gives a five-step method to build and integrate it into life).
In the category of criticism, this 334-page book is (in this reviewer’s opinion) a little padded and could have been an article instead. But the advice contained within it is sound, and the impact it can have might be profound.
Bottom line: if you find you’ve settled into a routine that’s perhaps comfortable, but not actually that much fun, this book will help you to liven things up.
Click here to check out The Power Of Fun, and feel more alive!
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