What Your Brain Is Really Doing When You’re Doing “Nothing”
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Unless we are dead, our brain is never truly inactive. And it’s not just a matter of regulating autonomic functions, either…
Default Mode Network
When the brain is at rest but not necessarily asleep, the Default Mode Network (DMN) engages. This makes up for around 20% of the brain’s overall activity, and contributes to complex cognitive processes.
What constitutes “at rest”: the DMN activates when external tasks stop and is engaged during self-reflection, mind-wandering, and relaxed memory recall (i.e. reminiscing, rather than answering questions in a difficult test, for example).
As for its neurophysiology, the DMN is connected to the hippocampus and plays a key role in episodic, prospective, and semantic memory (memories of experiences, future plans, and general knowledge), as well as being involved in self-reflection, social cognition, and understanding others’ thoughts (theory of mind). The DMN thus also helps integrate memories and thoughts to create a cohesive internal narrative and sense of self.
However, it doesn’t work alone: the DMN interacts with other networks like the salience network, which switches attention to external stimuli. Disruptions between these networks are linked to psychiatric disorders (e.g., schizophrenia, Alzheimer’s, depression), in various different ways depending on the nature of the disruption.
Sometimes, for some people in some circumstances, the option to disrupt the DMN is useful. For example, research shows that psilocybin disrupts the DMN, leading to changes in brain activity and potential therapeutic benefits for depression* and other psychiatric disorders by enhancing neuroplasticity.
*Essentially, kicking the brain out of the idling gear it got stuck in, and into action
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 Wandering Mind – by Dr. Michael Corballis ← a book, largely about the DMN and how to use it beneficially
- Taking A Trip Through The Evidence On Psychedelics ← for a shorter read, touching on psilocybin
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Which Plant Milk?
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Plant-based milks—what’s best?
You asked us to look at some popular plant milks and their health properties, and we said we’d do a main feature, so here it is!
We’ll also give a quick nod to environmental considerations at the end too (they might not be quite what you expect!). That said, as a health and productivity newsletter, we’ll be focusing on the health benefits.
While we can give a broad overview, please note that individual brands may vary, especially in two important ways:
- Pro: many (most?) brands of plant milks fortify their products with extra vitamins and minerals, especially vitamin D and calcium.
- Con: some brands also add sugar.
So, by all means use this guide to learn about the different plants’ properties, and/but still do check labels later.
Alternatively, consider making your own!
- Pros: no added sugar + cheaper
- Cons: no added vitamins and minerals + some equipment required
Almond milk
Almond milk is low in carbs and thus good for a carb-controlled diet. It’s also high in vitamin E and a collection of minerals.
Oat milk
Oats are one of the healthiest “staple foods” around, and while drinking oat milk doesn’t convey all the benefits, it does a lot. It also has one of the highest soluble fiber contents of any milk, which is good for reducing LDL (bad) cholesterol levels.
See for example: Consumption of oat milk for 5 weeks lowers serum cholesterol and LDL cholesterol in free-living men with moderate hypercholesterolemia
Coconut milk
Coconut has a higher fat content than most plant milks, but also contains medium-chain triglycerides (MCTs). These raise HDL (good) cholesterol levels.
Read the study: How well do plant based alternatives fare nutritionally compared to cow’s milk?
Hemp milk
Being made from hemp seeds that contain a lot of protein and healthy fats (including omega-3 and omega-6), hemp milk packs a nutritious punch. It’s carb-free. It’s also THC-free, in case you were wondering, which means no, it does not have psychoactive effects.
Pea milk
It’s very high in protein, and contains an array of vitamins and minerals. It’s not very popular yet, so there isn’t as much research about it. This 2021 study found that it had the nutritional profile the closest to cow’s milk (beating soy by a narrow margin) and praised it as a good alternative for those with a soy allergy.
This is Research Review Monday so we try to stick to pure science, but for your interest… here’s an interesting pop-science article (ostensibly in affiliation with the pea milk brand, Ripple) about the nutritional qualities of their pea milk specifically, which uses particularly nutrient-dense yellow peas, plus some extra vitamin and mineral fortifications:
Read: Ripple Milk: 6 Reasons Why You Should Try Pea Milk
Soy milk
Perhaps the most popular plant milk, and certainly usually the cheapest in stores. It’s high in protein, similar to cow’s milk. In fact, nutritionally, it’s one of the closest to cow’s milk without involving cows as a middleman. (Did you know three quarters of all soy in the world is grown to feed to livestock, not humans? Now you do).
And no, gentlemen-readers, it won’t have any feminizing effects. The human body can’t use the plant estrogens in soy for that. It does give some isoflavone benefits though, which are broadly good for everyone’s health. See for example this research review with 439 sources of its own:
Read: Soy and Health Update: Evaluation of the Clinical and Epidemiologic Literature
Quick note on flavor: nut milks have the flavor of the nut they were made from. Coconut milk tastes of coconut. The other milks listed above don’t have much of a flavor—which in many cases may be what you want.
Note on environmental considerations:
A lot of us try to be as socially responsible as reasonably possible in our choices, so this may be an influencing factor. In a nutshell:
- Oats and Soy are generally grown as vast monocrops, and these are bad for the environment
- They are still better for the environment than cow’s milk though, as for example most soy is grown to feed to cows, not humans. So including cows in the process means four times as much monocrop farming, plus adds several other environmental issues that are beyond the scope of this newsletter.
- Almonds are particularly resource-intensive when it comes to water use.
- Still nowhere near as much as cows, though.
- Peas are grown in places that naturally have very high rainfall, so are a good option here. Same generally goes for rice, which didn’t make the cut today. (Nor did hazelnuts, sorry—we can only include so much!)
- Hemp is by far and away the most environmentally friendly, assuming it is grown in a climate naturally conducive to such.
- Making plant milk at home is usually most environmentally friendly, depending on where your ingredients came from.
- Literally any plant milk is much more environmentally friendly than cow’s milk.
See the science for yourself: Reducing food’s environmental impacts through producers and consumers
See also (if you like graphs and charts): Environmental footprints of dairy and plant-based milks
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Brussels Sprouts vs Broccoli – Which is Healthier?
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Our Verdict
When comparing sprouts to broccoli, we picked the sprouts.
Why?
First let’s note that we have an interesting comparison today, because these two plants are the exact same species (and indeed, also the exact same species as cabbage, cauliflower. and kale)—just a different cultivar. All of these plants and more are simply cultivars of Brassica oleracea.
Them being the same species notwithstanding, there are nutritional differences:
In terms of macros, sprouts have slightly more protein, carbohydrates, and fiber, whereas broccoli has slightly more water weight. An easy win for sprouts here.
In the category of vitamins, sprouts have more of vitamins A, B1, B3, B6, C, E, and K, while broccoli has more of vitamins B2 and B5. Another easy win for sprouts.
When it comes to minerals, sprouts again lead with more copper, iron, magnesium, manganese, phosphorus, and potassium, while broccoli has more calcium and selenium.
A note on oxalates: while oxalates are not a problem for most people, it is important to be mindful of them if one has kidney problems. You may know that spinach (a fellow green vegetable high in vitamins and minerals, as well as being a fellow oleracea, albeit of a different genus, so not the same species for once) is high in oxalates, but these two Brassica oleracea we compared today are amongst the lowest in oxalates (source 1 | source 2), making them an ideal way to get vitamins, minerals, and fiber on an oxalate-controlled diet.
Since both are also high in polyphenols, especially kaempferol and quercetin, we’ll mention that sprouts have more lignans while broccoli has more flavonoids. In short: they’re both very good, just different.
As ever, enjoy both! But if you’re going to pick one for total best nutritional density, it’s sprouts.
Want to learn more?
You might like to read:
Sprout Your Seeds, Grains, Beans, Etc ← sprout your Brassica oleracea, too!
Take care!
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How Useful Are Our Dreams
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What’s In A Dream?
We were recently asked:
❝I have a question or a suggestion for coverage in your “Psychology Sunday”. Dreams: their relevance, meanings ( if any) interpretations? I just wondered what the modern psychological opinions are about dreams in general.❞
~ 10almonds subscriber
There are two main schools of thought, and one main effort to reconcile those two. The third one hasn’t quite caught on so far as to be considered a “school of thought” yet though.
The Top-Down Model (Psychoanalysts)
Psychoanalysts broadly follow the theories of Freud, or at least evolved from there. Freud was demonstrably wrong about very many things. Most of his theories have been debunked and ditched—hence the charitable “or at least evolved from there” phrasing when it comes to modern psychoanalytic schools of thought. Perhaps another day, we’ll go into all the ways Freud went wrong. However, for today, one thing he wasn’t bad at…
According to Freud, our dreams reveal our subconscious desires and fears, sometimes directly and sometimes dressed in metaphor.
Examples of literal representations might be:
- sex dreams (revealing our subconscious desires; perhaps consciously we had not thought about that person that way, or had not considered that sex act desirable)
- getting killed and dying (revealing our subconscious fear of death, not something most people give a lot of conscious thought to most of the time)
Examples of metaphorical representations might be:
- dreams of childhood (revealing our subconscious desires to feel safe and nurtured, or perhaps something else depending on the nature of the dream; maybe a return to innocence, or a clean slate)
- dreams of being pursued (revealing our subconscious fear of bad consequences of our actions/inactions, for example, responsibilities to which we have not attended, debts are a good example for many people; or social contact where the ball was left in our court and we dropped it, that kind of thing)
One can read all kinds of guides to dream symbology, and learn such arcane lore as “if you dream of your teeth crumbling, you have financial worries”, but the truth is that “this thing means that other thing” symbolic equations are not only highly personal, but also incredibly culture-bound.
For example:
- To one person, bees could be a symbol of feeling plagued by uncountable small threats; to another, they could be a symbol of abundance, or of teamwork
- One culture’s “crow as an omen of death” is another culture’s “crow as a symbol of wisdom”
- For that matter, in some cultures, white means purity; in others, it means death.
Even such classically Freudian things as dreaming of one’s mother and/or father (in whatever context) will be strongly informed by one’s own waking-world relationship (or lack thereof) with same. Even in Freud’s own psychoanalysis, the “mother” for the sake of such analysis was the person who nurtured, and the “father” was the person who drew the nurturer’s attention away, so they could be switched gender roles, or even different people entirely than one’s parents.
The only real way to know what, if anything, your dreams are trying to tell you, is to ask yourself. You can do that…
- by reflection and personal interrogation (see for example: The Easiest Way To Take Up Journaling)
- or by externalising parts of your subconscious (as in Internal Family Systems therapy)
- or by talking directly to your subconscious where it is, by means of lucid dreaming.
The idea with lucid dreaming is that since any dream character is a facet of your subconscious generated by your own mind, by talking to that character you can ask questions directly of your subconscious (the popular 2010 movie “Inception” was actually quite accurate in this regard, by the way).
To read more about how to do this kind of self-therapy through lucid dreaming, you might want to check out this book we reviewed previously; it is the go-to book of lucid dreaming enthusiasts, and will honestly give you everything you need in one go:
Lucid Dreaming: A Concise Guide to Awakening in Your Dreams and in Your Life – by Dr. Stephen LaBerge
The Bottom-Up Model (Neuroscientists)
This will take a lot less writing, because it’s practically a null hypothesis (i.e., the simplest default assumption before considering any additional evidence that might support or refute it; usually some variant of “nothing unusual going on here”).
The Bottom-Up model holds that our brains run regular maintenance cycles during REM sleep (a biological equivalent of defragging a computer), and the brain interprets these pieces of information flying by and, because of the mind’s tendency to look for patterns, fills in the rest (much like how modern generative AI can “expand” a source image to create more of the same and fill in the blanks), resulting in the often narratively wacky, but ultimately random, vivid hallucinations that we call dreams.
The Hybrid Model (per Cartwright, 2012)
This is really just one woman’s vision, but it’s an incredibly compelling one, that takes the Bottom-Up model and asks “what if we did all that bio-stuff, and then our subconscious mind influenced the interpretation of the random patterns, to create dreams that are subjectively meaningful, and thus do indeed represent our subconscious?
It’s best explained in her own words, though, so it’s time for another book recommendation (we’ve reviewed this one before, too):
Enjoy!
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Dodging Dengue In The US
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Dengue On The Rise
We wrote recently about dengue outbreaks in the Americas, with Puerto Rico declaring an epidemic. Cases are now being reported in Florida too, and are likely to spread, so it’s good to be prepared, if your climate is of the “warm and humid” kind.
If you want to catch up on the news first, here you go:
- UN health agency cites tenfold increase in reported cases of dengue over the last generation
- Puerto Rico has declared an epidemic following a spike in dengue cases
- Dengue fever confirmed in Florida Keys as US on watch for rise in mosquito illness
Note: dengue is far from unheard of in Florida, but the rising average temperatures in each year mean that each year stands a good chance of seeing more cases than the previous. It’s been climbing since at least 2017, took a dip during the time of COVID restrictions keeping people at home more, and then for the more recent years has been climbing again since.
What actually is it?
Dengue is a viral, mosquito-borne disease, characterized by fever, vomiting, muscle pain, and a rash, in about 1 in 4 cases.
Which can sound like “you’ll know if you have it”, but in fact it’s usually asymptomatic for a week or more after infection, so, watch out!
What next, if those symptoms appear?
The good news is: the fever will usually last less than a week
The bad news is: a day or so after that the fever subsided, the more serious symptoms are likely to start—if they’re going to.
If you’re unlucky enough to be one of the 1 in 20 who get the serious symptoms, then you can expect abdominal cramps, repeat vomiting, bleeding from various orifices (you may not get them all, but all are possible), and (hardly surprising, given the previous items) “extreme fatigue and restlessness”.
If you get those symptoms, then definitely get to an ER as soon as possible, as dengue can become life-threatening within hours of such.
Read more: CDC | Symptoms of Dengue and Testing
While there is not a treatment for dengue per se, the Emergency Room will be better able to manage your symptoms and thus keep you alive long enough for them to pass.
If you’d like much more detail (on symptoms, seriousness, at-risk demographics, and prognosis) than what the CDC offers, then…
Read more: BMJ | Dengue Fever
Ok, so how do we dodge the dengue?
It sounds flippant to say “don’t get bitten”, but that’s it. However, there are tips are not getting bitten:
- Use mosquito-repellent, but it has to contain >20% DEET, so check labels
- Use mosquito nets where possible (doors, windows, etc, and the classic bed-tent net is not a bad idea either)
- Wear clothing that covers your skin, especially during the day—it can be light clothing; it doesn’t need to be a HazMat suit! But it does need to reduce the area of attack to reduce the risk of bites.
- Limit standing water around your home—anything that can hold even a small amount of standing water is a potential mosquito-breeding ground. Yes, even if it’s a crack in your driveway or a potted bromeliad.
Further reading
You might also like to check out:
Stickers and wristbands aren’t a reliable way to prevent mosquito bites. Here’s why
…and in case dengue wasn’t bad enough:
Mosquitoes can spread the flesh-eating Buruli ulcer. Here’s how you can protect yourself
Take care!
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Dates vs Banana – Which is Healthier?
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Our Verdict
When comparing dates to banana, we picked the dates.
Why?
It was close, and bananas do have some strengths too! We pitted these two against each other as they’re both sweet fruits often used as a sweetening and consistency-altering ingredient in desserts and sweet snacks, so if you’re making a choice between them, here are the things to consider:
In terms of macros, dates have more than 3x the fiber, more than 2x the protein, and a little over 3x the carbs. You may be wondering how this adds up in terms of glycemic index: dates have the lower GI. So, we pick dates, here, for that reason and overall nutritional density too.
When it comes to vitamins, bananas have their moment, albeit barely: dates have more of vitamins B1, B3, B5, and K, while bananas have more of vitamins A, B6, C, E, and choline, making for a marginal victory for bananas in this category.
Looking at minerals next, however, it’s quite a different story: dates have more calcium, copper, iron, magnesium, phosphorus, potassium, selenium, and zinc, while bananas are not higher in any mineral. No, not even potassium, for which they are famous—dates have nearly 2x more potassium than bananas.
Adding up these sections makes for a clear win for dates in general!
Enjoy either/both, but dates are the more nutritious snack/ingredient.
Want to learn more?
You might like to read:
From Apples to Bees, and High-Fructose Cs: Which Sugars Are Healthier, And Which Are Just The Same?
Take care!
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Insomnia? High blood pressure? Try these!
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Your Questions, Our Answers!
Q: Recipes for insomnia and high blood pressure and good foods to eat for these conditions?
A: Insomnia can be caused by many things, and consequently can often require a very multi-vector approach to fixing it. But, we’ll start by answering the question you asked (and probably address the rest of dealing with insomnia in another day’s edition!):
- First, you want food that’s easy to digest. Broadly speaking, this means plant-based. If not plant-based, fish (unless you have an allergy, obviously) is generally good and certainly better than white meat, which is better than red meat. In the category of dairy, it depends so much on what it is, that we’re not going to try to break it down here. If in doubt, skip it.
- You also don’t want blood sugar spikes, so it’s good to lay off the added sugar and white flour (or white flour derivatives, like white pasta), especially in your last meal of the day.
- Magnesium supports healthy sleep. A fine option would be our shchi recipe, but using collard greens rather than cabbage. Cabbage is a wonderful food, but collard greens are much higher in magnesium. Remember to add plenty of mushrooms (unless you don’t like them), as they’re typically high in magnesium too.
As for blood pressure, last month we gave tips (and a book recommendation) for heart health. The book, Dr. Monique Tello’s “Healthy Habits for Your Heart: 100 Simple, Effective Ways to Lower Your Blood Pressure and Maintain Your Heart’s Health”, also has recipes!
Here’s one from the “mains” section:
Secret Ingredient Baltimore-Style Salmon Patties with Not-Oily Aioli
❝This is a family favorite, and no one knows that it features puréed pumpkin! Most salmon cake recipes all for eggs and bread crumbs as binders, but puréed pumpkin and grated carrot work just as well, lend a beautiful color, and add plenty of fiber and plant nutrients. Canned salmon is way cheaper than fresh and has just as much omega-3 PUFAs and calcium. Serve this alongside a salad (the Summer Corn, Tomato, Spinach, and Basil Salad would go perfectly) for a well-rounded meal.❞
Serves 4 (1 large patty each)
Secret Ingredient Baltimore-Style Salmon Patties:
- 1 (15-oz) can pink salmon, no salt added
- ½ cup puréed pumpkin
- ½ cup grated carrot (I use a handheld box grater)
- 2 tablespoons minced chives (Don’t have chives? Minced green onions or any onions will do)
- 2 teaspoons Old Bay Seasoning
- 1 tablespoon olive oil
- ½ large lemon, sliced, for serving
Not-Oily Aioli:
- ½ cup plain low-fat Greek yogurt
- Juice and zest from ½ large lemon
- 1 clove garlic, crushed and minced fine
- 2 tablespoons chopped fresh dill
- For the patties: mix all the ingredients for the salmon patties together in a medium bowl
- Form patties with your hands and set on a plate or tray (you should have 4 burger-sized patties)
- Heat oil in a large skillet over medium heat.
- Set patties in a skillet and brown for 4 minutes, then carefully flip.
- Brown the other side, then serve hot.
- For the Aioli: mix all the ingredients for the aioli together in a small bowl.
- Plop a dollop alongside or on top of each salmon patty and serve with a spice of lemon.
Per serving: Calories: 367 | Fat: 13.6g | Saturated Fat: 4.4g | Protein: 46g | Sodium: 519mg | Carbohydrates: 13.2g | Fiber: 1.3g | Sugars: 9g | Calcium: 505mg | Iron: 1mg | Potassium 696mg
Notes from the 10almond team:
- If you want to make it plant-based, substitute cooked red lentils (no salt added) for the tinned salmon, and plant-based yogurt for the Greek yogurt
- We recommend adding more garlic. Seriously, who uses 1 clove of garlic for anything, let alone divided between four portions?
- The salads mentioned are given as recipes elsewhere in the same book. We strongly recommend getting her book, if you’re interested in heart health!
Do you have a question you’d like to see answered here? Hit reply or use the feedback widget at the bottom; we’d love to hear from you!
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