The Paleo Diet
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What’s The Real Deal With The Paleo Diet?
The Paleo diet is popular, and has some compelling arguments for it.
Detractors, meanwhile, have derided Paleo’s inclusion of modern innovations, and have also claimed it’s bad for the heart.
But where does the science stand?
First: what is it?
The Paleo diet looks to recreate the diet of the Paleolithic era—in terms of nutrients, anyway. So for example, you’re perfectly welcome to use modern cooking techniques and enjoy foods that aren’t from your immediate locale. Just, not foods that weren’t a thing yet. To give a general idea:
Paleo includes:
- Meat and animal fats
- Eggs
- Fruits and vegetables
- Nuts and seeds
- Herbs and spices
Paleo excludes:
- Processed foods
- Dairy products
- Refined sugar
- Grains of any kind
- Legumes, including any beans or peas
Enjoyers of the Mediterranean Diet or the DASH heart-healthy diet, or those with a keen interest in nutritional science in general, may notice they went off a bit with those last couple of items at the end there, by excluding things that scientific consensus holds should be making up a substantial portion of our daily diet.
But let’s break it down…
First thing: is it accurate?
Well, aside from the modern cooking techniques, the global market of goods, and the fact it does include food that didn’t exist yet (most fruits and vegetables in their modern form are the result of agricultural engineering a mere few thousand years ago, especially in the Americas)…
…no, no it isn’t. Best current scientific consensus is that in the Paleolithic we ate mostly plants, with about 3% of our diet coming from animal-based foods. Much like most modern apes.
Ok, so it’s not historically accurate. No biggie, we’re pragmatists. Is it healthy, though?
Well, health involves a lot of factors, so that depends on what you have in mind. But for example, it can be good for weight loss, almost certainly because of cutting out refined sugar and, by virtue of cutting out all grains, that means having cut out refined flour products, too:
Diet Review: Paleo Diet for Weight Loss
Measured head-to-head with the Mediterranean diet for all-cause mortality and specific mortality, it performed better than the control (Standard American Diet, or “SAD”), probably for the same reasons we just mentioned. However, it was outperformed by the Mediterranean Diet:
So in lay terms: the Paleo is definitely better than just eating lots of refined foods and sugar and stuff, but it’s still not as good as the Mediterranean Diet.
What about some of the health risk claims? Are they true or false?
A common knee-jerk criticism of the paleo-diet is that it’s heart-unhealthy. So much red meat, saturated fat, and no grains and legumes.
The science agrees.
For example, a recent study on long-term adherence to the Paleo diet concluded:
❝Results indicate long-term adherence is associated with different gut microbiota and increased serum trimethylamine-N-oxide (TMAO), a gut-derived metabolite associated with cardiovascular disease. A variety of fiber components, including whole grain sources may be required to maintain gut and cardiovascular health.❞
Bottom line:
The Paleo Diet is an interesting concept, and certainly can be good for short-term weight loss. In the long-term, however (and: especially for our heart health) we need less meat and more grains and legumes.
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11 Things That Can Change Your Eye Color
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Eye color is generally considered so static that iris scans are considered a reasonable security method. However, it can indeed change—mostly for reasons you won’t want, though:
Ringing the changes
Putting aside any wishes of being a manga protagonist with violet eyes, here are the self-changing options:
- Aging in babies: babies are often born with lighter eyes, which can darken as melanocytes develop during the first few months of life. This is similar to how a small child’s blonde hair can often be much darker by the time puberty hits!
- Aging in adults: eyes may continue to darken until adulthood, while aging into the elderly years can cause them to lighten due to conditions like arcus senilis
- Horner’s syndrome: a nerve disorder that can cause the eyes to become lighter due to loss of pigment
- Fuchs heterochromic iridocyclitis: an inflammation of the iris that leads to lighter eyes over time
- Pigment dispersion syndrome: the iris rubs against eye fibers, leading to pigment loss and lighter eyes
- Kayser-Fleischer rings: excess copper deposits on the cornea, often due to Wilson’s disease, causing larger-than-usual brown or grayish rings around the iris
- Iris melanoma: a rare cancer that can darken the iris, often presenting as brown spots
- Cancer treatments: chemotherapy for retinoblastoma in children can result in lighter eye color and heterochromia
- Medications: prostaglandin-based glaucoma treatments can darken the iris, with up to 23% of patients seeing this effect
- Vitiligo: an autoimmune disorder that destroys melanocytes, mostly noticed in the skin, but also causing patchy loss of pigment in the iris
- Emotional and pupil size changes: emotions and trauma can affect pupil size, making eyes appear darker or lighter temporarily by altering how much of the iris is visible
For more about all these, and some notes about more voluntary changes (if you have certain kinds of eye surgery), enjoy:
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Want to learn more?
You might also like to read:
Understanding And Slowing The Progression Of Cataracts
Take care!
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ADHD… As An Adult?
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ADHD—not just for kids!
Consider the following:
- If a kid has consistent problems paying attention, it’s easy and common to say “Aha, ADHD!”
- If a young adult has consistent problems paying attention, it’s easy and common to say “Aha, a disinterested ne’er-do-well!”
- If an older adult has consistent problems paying attention, it’s easy and common to say “Aha, a senior moment!”
Yet, if we recognize that ADHD is fundamentally a brain difference in children (and we do; there are physiological characteristics that we can test), and we can recognize that as people get older our brains typically have less neuroplasticity (ability to change) than when we are younger rather than less, then… Surely, there are just as many adults with ADHD as kids!
After all, that rather goes with the linear nature of time and the progressive nature of getting older.
So why do kids get diagnoses so much more often than adults?
Parents—and schools—can find children’s ADHD challenging, and it’s their problem, so they look for an explanation, and ADHD isn’t too difficult to find as a diagnosis.
Meanwhile, adults with ADHD have usually developed coping mechanisms, have learned to mask and/or compensate for their symptoms, and we expect adults to manage their own problems, so nobody’s rushing to find an explanation on their behalf.
Additionally, the stigma of neurodivergence—especially something popularly associated with children—isn’t something that many adults will want for themselves.
But, if you have an ADHD brain, then recognizing that (even if just privately to yourself) can open the door to much better management of your symptoms… and your life.
So what does ADHD look like in adults?
ADHD involves a spread of symptoms, and not everyone will have them all, or have them in the same magnitude. However, very commonly most noticeable traits include:
- Lack of focus (ease of distraction)
- Conversely: high focus (on the wrong things)
- To illustrate: someone with ADHD might set out to quickly tidy the sock drawer, and end up Marie Kondo-ing their entire wardrobe… when they were supposed to doing something else
- Conversely: high focus (on the wrong things)
- Poor time management (especially: tendency to procrastinate)
- Forgetfulness (of various kinds—for example, forgetting information, and forgetting to do things)
Want To Take A Quick Test? Click Here ← this one is reputable, and free. No sign in required; the test is right there.
Wait, where’s the hyperactivity in this Attention Deficit Hyperactivity Disorder?
It’s often not there. ADHD is simply badly-named. This stems from how a lot of mental health issues are considered by society in terms of how much they affect (and are observable by) other people. Since ADHD was originally noticed in children (in fact being originally called “Hyperkinetic Reaction of Childhood”), it ended up being something like:
“Oh, your brain has an inconvenient relationship with dopamine and you are driven to try to correct that by shifting attention from boring things to stimulating things? You might have trouble-sitting-still disorder”
Hmm, this sounds like me (or my loved one); what to do now at the age of __?
Some things to consider:
- If you don’t want medication (there are pros and cons, beyond the scope of today’s article), you might consider an official diagnosis not worth pursuing. That’s fine if so, because…
- More important than whether or not you meet certain diagnostic criteria, is whether or not the strategies recommended for it might help you.
- Whether or not you talk to other people about it is entirely up to you. Maybe it’s a stigma you’d rather avoid… Or maybe it’ll help those around you to better understand and support you.
- Either way, you might want to learn more about ADHD in adults. Today’s article was about recognizing it—we’ll write more about managing it another time!
In the meantime… We recommended a great book about this a couple of weeks ago; you might want to check it out:
Click here to see our review of “The Silent Struggle: Taking Charge of ADHD in Adults”!
Note: the review is at the bottom of that page. You’ll need to scroll past the video (which is also about ADHD) without getting distracted by it and forgetting you were there to see about the book. So:
- Click the above link
- Scroll straight to the review!
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Recognize The Early Symptoms Of Parkinson’s Disease
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Parkinson’s disease is a degenerative condition with wide-reaching implications for health. While there is currently no known cure, there are treatments, so knowing about it sooner rather than later is important.
Spot The Signs
There are two main kinds of symptoms, motor and non-motor.
Motor symptoms include:
- trembling that occurs when muscles are relaxed; often especially visible in the fingers
- handwriting changes—not just because of the above, but also often getting smaller
- blank expression, on account of fewer instruction signals getting through to the face
- frozen gait—especially difficulty starting walking, and a reduced arm swing
Non-motor symptoms include:
- loss of sense of smell—complete, or a persistent reduction of
- sleepwalking, or sleep-talking, or generally acting out dreams while asleep
- constipation—on an ongoing basis
- depression/anxiety, especially if there was no prior history of these conditions
For more detail on each of these, as well as what steps you might want to take, check out what Dr. Luis Zayas has to say:
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Want to learn more?
You might also like to read:
Citicoline vs Parkinson’s (And More)
Take care!
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100 No-Equipment Workouts – by Neila Rey
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For those of us who for whatever reason prefer to exercise at home rather than at the gym, we must make do with what exercise equipment we can reasonably install in our homes. This book deals with that from the ground upwards—literally!
If you have a few square meters of floorspace (and a ceiling that’s not too low, for exercises that involve any kind of jumping), then all 100 of these zero-equipment exercises are at-home options.
As to what kinds of exercises they are, they each marked as being one or both of “cardio” and “strength”.
They’re also marked as being of “difficulty level” 1, 2, or 3, so that someone who hasn’t exercised in a while (or hasn’t exercised like this at all), can know where best to start, and how best to progress.
The exercises come with clear explanations in the text, and clear line-drawing illustrations of how to do each exercise. Really, they could not be clearer; this is top quality pragmatism, and reads like a military manual.
Bottom line: whatever your strength and fitness goals, this book can see you well on your way to them (if not outright get you there already in many cases). It’s also an excellent “all-rounder” for full-body workouts.
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High Histamine Foods To Avoid (And Low Histamine Foods To Eat Instead)
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Nour Zibdeh is an Integrative and Functional Dietician, and she helps people overcome food intolerances. Today, it’s about getting rid of the underdiagnosed condition that is histamine intolerance, by first eliminating the triggers, and then not getting stuck on the low-histamine diet
The recommendations
High histamine foods to avoid include:
- Alcohol (all types)
- Fermented foods—normally great for the gut, but bad in this case
- That includes most cheeses and yogurts
- Aged, cured, or otherwise preserved meat
- Some plants, e.g. tomato, spinach, eggplant, banana, avocado. Again, normally all great, but not in this case.
Low histamine foods to eat include:
- Fruits and vegetables not mentioned above
- Minimally processed meat and fish, either fresh from the butcher/fishmonger, or frozen (not from the chilled food section of the supermarket), and eaten the same day they were purchased or defrosted, because otherwise histamine builds up over time (and quite quickly)
- Grains, but she recommends skipping gluten, given the high likelihood of a comorbid gluten intolerance. So instead she recommends for example quinoa, oats, rice, buckwheat, millet, etc.
For more about these (and more examples), as well as how to then phase safely off the low histamine diet, enjoy:
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Further reading
Food intolerances often gang up on a person (i.e., comorbidity is high), so you might also like to read about:
- Gluten: What’s The Truth?
- Fiber For FODMAP-Avoiders
- Foods For Managing Hypothyroidism (incl. Hashimoto’s)
- Crohn’s, Food Intolerances, & More
Take care!
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Rebalancing Dopamine (Without “Dopamine Fasting”)
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Rebalancing Dopamine (Without “Dopamine Fasting”)
Credit Steve Fisch This is Dr. Anna Lembke. She’s a professor of psychiatry at Stanford, and chief of the Stanford Addiction Medicine Dual Diagnosis Clinic—as well as running her own clinical practice, and serving on the board of an array of state and national addiction-focused organizations.
Today we’re going to look at her work on dopamine management…
Getting off the hedonic treadmill
For any unfamiliar with the term, the “hedonic treadmill” is what happens when we seek pleasure, enjoy the pleasure, the pleasure becomes normalized, and now we need to seek a stronger pleasure to get above our new baseline.
In other words, much like running on a reciprocal treadmill that just gets faster the faster we run.
What Dr. Lembke wants us to know here: pleasure invariably leads to pain
This is not because of some sort of extrinsic moral mandate, nor even in the Buddhist sense. Rather, it is biology.
Pleasure and pain are processed by the same part of the brain, and if we up one, the other will be upped accordingly, to try to keep a balance.
Consequently, if we recklessly seek “highs”, we’re going to hit “lows” soon enough. Whether that’s by drugs, sex, or just dopaminergic habits like social media overuse.
Dr. Lembke’s own poison of choice was trashy romance novels, by the way. But she soon found she needed more, and more, and the same level wasn’t “doing it” for her anymore.
So, should we just give up our pleasures, and do a “dopamine fast”?
Not so fast!
It depends on what they are. Dopamine fasting, per se, does not work. We wrote about this previously:
Short On Dopamine? Science Has The Answer
However, when it comes to our dopaminergic habits, a short period (say, a couple of weeks) of absence of that particular thing can help us re-find our balance, and also, find insight.
Lest that latter sound wishy-washy: this is about realizing how bad an overuse of some dopaminergic activity had become, the better to appreciate it responsibly, going forwards.
So in other words, if your poison is, as in Dr. Lembke’s case, trashy romance novels, you would abstain from them for a couple of weeks, while continuing to enjoy the other pleasures in life uninterrupted.
Substances that create a dependency are a special case
There’s often a popular differentiation between physical addictions (e.g. alcohol) and behavioral addictions (e.g. video games). And that’s fair; physiologically speaking, those may both involve dopamine responses, but are otherwise quite different.
However, there are some substances that are physical addictions that do not create a physical dependence (e.g. sugar), and there are substances that create a physical dependence without being addictive (e.g. many antidepressants)
See also: Addiction and physical dependence are not the same thing
In the case of anything that has created a physical dependence, Dr. Lembke does not recommend trying to go “cold turkey” on that without medical advice and supervision.
Going on the counterattack
Remember what we said about pleasure and pain being processed in the same part of the brain, and each rising to meet the other?
While this mean that seeking pleasure will bring us pain, the inverse is also true.
Don’t worry, she’s not advising us to take up masochism (unless that’s your thing!). But there are very safe healthy ways that we can tip the scales towards pain, ultimately leading to greater happiness.
Cold showers are an example she cites as particularly meritorious.
As a quick aside, we wrote about the other health benefits of these, too:
A Cold Shower A Day Keeps The Doctor Away?
Further reading
Want to know more? You might like her book:
Dopamine Nation: Finding Balance in the Age of Indulgence
Enjoy!
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