Blood and Water
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Q&A with the 10almonds Team
Q: I really loved the information about macular degeneration! I was wondering if you have any other advice about looking after eye health?
A: We may well do a full feature on it sometime! Meanwhile, some top tips include:
- Eat your greens (as you know from this last Tuesday’s edition of 10almonds)!
- Exercise! Generally. We’re not talking about eye exercises here, we’re talking about exercises that will support:
- Healthy heart rate
- Healthy blood pressure
- Healthy blood oxygenation
- Healthy blood sugar levels
- Healthy blood flow in general (so keep hydrated too! There’s a reason phlebotomists ask you to be well-hydrated before they take blood)
Eye health is a good indicator for a lot of other things, and that’s because whether or not the eyes are the window to your soul, they’re definitely the window to what your blood’s like, and that affects (and is affected by) so many other things.
- On that note, don’t smoke!
- Protect your eyes physically, too. This means:
- UV-blocking sunglasses when appropriate
- Protective eye-wear when appropriate
You think safety glasses are for laboratories and construction sites, then you go and do comparable tasks in your home? Your eyes are just as damageable in your kitchen or garden as they would be in a lab or workshop.
Some bits and bobs that can help:
- Safety sunglasses! Because a thing can do two jobs (useful in the garden now the days are brightening up!)
- Pulse oximeter! Check your own heart rate, pulse strength, and blood oxygenation at home!
- Blood pressure monitor! Because it’s so important for a lot of things and you really should have one.
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How Your Sleep Position Changes Dementia Risk
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This is not just about sleep duration or even about sleep quality… It really is about which way your body is positioned.
Goodnight, glymphatic system
The association between sleeping position and dementia risk is about glymphatic drainage, which is largely powered by gravity (and thus dependent on which way around your head and neck are oriented), and very important for clearing toxins out of the brain—including beta-amyloid proteins.
This becomes particularly important when the glymphatic system becomes less efficient in midlife, often 15–20 years before cognitive decline symptoms appear.
The video’s thumbnail headline, “SCIENTISTS REVEAL: THE WAY YOUR SLEEP CAN CAUSE DEMENTIA” is overstated and inaccurate, but our adjusted headline “how your sleep position changes dementia risk” is actually representative of the paper on which this video was based; we’ll quote from the paper itself here:
❝This paper concludes that 1. glymphatic clearance plays a major role in Alzheimer’s pathology; 2. the vast majority of waste clearance occurs during sleep; 3. dementias are associated with sleep disruption, alongside an age-related decline in AQP4 polarization; and 4. lifestyle choices such as sleep position, alcohol intake, exercise, omega-3 consumption, intermittent fasting and chronic stress all modulate* glymphatic clearance. Lifestyle choices could therefore alter Alzheimer’s disease risk through improved glymphatic clearance, and could be used as a preventative lifestyle intervention for both healthy brain ageing and Alzheimer’s disease.❞
…and specifically, they found:
❝Glymphatic transport is most efficient in the right lateral sleeping position, with more CSF clearance occurring compared to supine and prone. The average person changes sleeping position 11 times per night, but there was no difference in the number of position changes between neurodegenerative and control groups, making the percentage of time spent in supine position the risk factor, not the number of position changes❞
Read the paper in full here: The Sleeping Brain: Harnessing the Power of the Glymphatic System through Lifestyle Choices
*saying “modulate” here is not as useful as it could be, because they modulate it differently: side-sleeping improves clearance; back sleeping decreases it; front-sleeping isn’t great either. Alcohol intake reduces clearance, exercise (especially cardiovascular exercise) improves it; omega-3 consumption improves it up a degree and does depend on omega-3/6 ratios, intermittent fasting improves it, and chronic stress worsens it.
And for a more pop-science presentation, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
How To Clean Your Brain (Glymphatic Health Primer)
Take care!
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Correct An Upper Spine Hump (Simple Stretch & Exercise)
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Generally called a neck hump in this video, it can be in the cervical (neck) vertebrae or it can be in the thoracic (upper back) vertebrae. It’s also known as a dowager’s hump, buffalo hump, or kyphosis.
However, it can be fixed:
What to do
First understand the cause: it generally comes from poor posture, especially from prolonged desk work or phone use.
With that in mind…
- Posture adjustments: lean back in a chair to counter gravity’s pull on your head. Avoid slumping; keep your head aligned with your spine.
- Stretching: lie flat on the floor without pillows to restore spinal alignment. Gradually reduce pillow height during sleep to decrease neck hyperflexion.
- Neck retraction: pull chin straight back while keeping your eyes looking forwards. Hold for 15 seconds, gradually increasing to 60 seconds. Perform 10 repetitions, resting between sets.
- Strengthening: lean forward and pull the chin back against gravity. Hold, or repeat for 10 repetitions. Over time, increase duration to a minute.
For more on all of this plus visual demonstrations, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
The Pains That Good Posture Now Can Help You Avoid Later
Take care!
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Savory Protein Crêpe
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Pancakes have a bad reputation healthwise, but they don’t have to be so. Here’s a very healthy crêpe recipe, with around 20g of protein per serving (which is about how much protein most people’s body’s can use at one sitting) and a healthy dose of fiber too:
You will need
Per crêpe:
- ½ cup milk (your preference what kind; we recommend oat milk for this)
- 2 oz chickpea flour (also called garbanzo bean flour, or gram flour)
- 1 tsp nutritional yeast
- 1 tsp ras el-hanout (optional but tasty and contains an array of beneficial phytochemicals)
- 1 tsp dried mixed herbs
- ⅛ tsp MSG or ¼ tsp low-sodium salt
For the filling (also per crêpe):
- 6 cherry tomatoes, halved
- Small handful baby spinach
- Extra virgin olive oil
Method
(we suggest you read everything at least once before doing anything)
1) Mix the dry crêpe ingredients in a bowl, and then stir in the milk, whisking to mix thoroughly. Leave to stand for at least 5 minutes.
2) Meanwhile, heat a little olive oil in a skillet, add the tomatoes and fry for 1 minute, before adding the spinach, stirring, and turning off the heat. As soon as the spinach begins to wilt, set it aside.
3) Heat a little olive oil either in the same skillet (having been carefully wiped clean) or a crêpe pan if you have one, and pour in a little of the batter you made, tipping the pan so that it coats the pan evenly and thinly. Once the top is set, jiggle the pan to see that it’s not stuck, and then flip your crêpe to finish on the other side.
If you’re not confident of your pancake-tossing skills, or your pan isn’t good enough quality to permit this, you can slide it out onto a heatproof chopping board, and use that to carefully turn it back into the pan to finish the other side.
4) Add the filling to one half of the crêpe, and fold it over, pushing down at the edges with a spatula to make a seal, cooking for another 30 seconds or so. Alternatively, you can just serve a stack of crêpes and add the filling at the table, folding or rolling per personal preference:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)
- Three Daily Servings of Beans?
- Lycopene’s Benefits For The Gut, Heart, Brain, & More
- Our Top 5 Spices: How Much Is Enough For Benefits?
- Sea Salt vs MSG – Which is Healthier?
Take care!
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The Dopamine Myth
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The Dopamine Myth
There’s a popular misconception that, since dopamine is heavily involved in addictions, it’s the cause.
We see this most often in the context of non-chemical addictions, such as:
- gambling
- videogames
- social media
And yes, those things will promote dopamine production, and yes, that will feel good. But dopamine isn’t the problem.
Myth: The Dopamine Detox
There’s a trend we’ve mentioned before (it got a video segment a few Fridays back) about the idea of a “dopamine detox“, and how unscientific the idea is.
For a start…
- You cannot detox from dopamine, because dopamine is not a toxin
- You cannot abstain from dopamine, because your brain regulates your dopamine levels to keep them correct*
- If you could abstain from dopamine (and did), you would die, horribly.
*unless you have a serious mental illness, for example:
- forms of schizophrenia and/or psychosis that involve too much dopamine, or
- forms of depression and/or neurodegenerative diseases such as Parkinson’s (and several kinds of dementia) in which you have too little dopamine
- bipolar disorder in which dopamine levels can swing too far each way
See also: Dopamine fasting: misunderstanding science spawns a maladaptive fad
Myth: Dopamine is all about pleasure
Dopamine is a pleasure-giving neurotransmitter, but it serves more purposes than that! It also plays a central role in many neurological processes, including:
- Motivation
- Learning and memory
- Motor functions
- Language faculties
- Linear task processing
Note for example how someone taking dopaminergic drugs (prescription or otherwise; could be anything from modafinil to cocaine) is not blissed out… They’re probably in a good mood, sure, but they’re focused, organized, quick-thinking, and so forth! This is not an ad for cocaine; cocaine is very bad for the health. But you see the features? So, what if we could have a little more dopamine… healthily?
Dopamine—à la carte
Let’s look at the examples we gave earlier of non-chemical addictions that are dopaminergic in nature:
- gambling
- videogames
- social media
They’re not actually that rewarding, are they?
- Gamblers lose more than they win
- Gamers cease to care about a game once they have won
- Social media more often results in “doomscrolling”
This is because what prompts the most dopamine is actually the anticipation of reward… not the thing itself, whose reward-pleasure is very fleeting. Nobody looks back at an hour of doomscrolling and thinks “well, that was fun; I’m glad I did that”.
See the science: Liking, Wanting and the Incentive-Sensitization Theory of Addiction
But what if we anticipated a reward from things that are not deleterious to health and productivity? Things that are neutral, or even good for us?
Examples of this include:
- Sex! (remember though, it’s not a race to the finish-line)
- Good, nourishing food (bonus: some foods boost dopamine production nutritionally)
- Exercise/sport (also prompts release of endorphins, win/win!)
- Gamified learning apps (e.g. Duolingo)
- Gamified health/productivity apps (anything with bells and whistles and things that go “ding” and measure streaks etc)
Want to know more?
That’s all we have time for today, but you might want to check out:
10 Best Ways to Increase Dopamine Levels Naturally ← Science-based and well-sourced article!
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Generation M – by Dr. Jessica Shepherd
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Menopause is something that very few people are adequately prepared for despite its predictability, and also something that very many people then neglect to take seriously enough.
Dr. Shepherd encourages a more proactive approach throughout all stages of menopause and beyond; she discusses “the preseason, the main event, and the after-party” (perimenopause, menopause, and postmenopause), which is important, because typically people take up an interest in perimenopause, are treating it like a marathon by menopause, and when it comes to postmenopause, it’s easy to think “well, that’s behind me now”, and it’s not, because untreated menopause will continue to have (mostly deleterious) cumulative effects until death.
As for HRT, there’s a chapter on that of course, going into quite some detail. There is also plenty of attention given to popular concerns such as managing weight changes and libido changes, as well as oft-neglected topics such as brain changes, as well as things considered more cosmetic but that can have a big impact on mental health, such as skin and hair.
The style throughout is pop-science; friendly without skimping on detail and including plenty of good science.
Bottom line: if you’d like a fairly comprehensive overview of the changes that occur from perimenopause all the way to menopause and well beyond, then this is a great book for that.
Click here to check out Generation M, and live well at every stage of life!
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The 3 Phases Of Fat Loss (& How To Do It Right!)
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Cori Lefkowith, of “Redefining Strength” and “Strength At Any Age” fame, has advice:
As easy as 1, 2, 3?
Any kind of fat loss plan will not work unless it takes into account that the body can and will adapt to a caloric deficit, meaning that constantly running a deficit will only ever yield short term results, followed by regaining weight (and feeling hungry the whole time). So, instead, if fat loss is your goal, you might want to consider doing it in these stages:
1. Lifestyle adjustments (main phase)
Focus on sustainable, gradual improvements in diet and workouts.
- Key strategies:
- Start with small, manageable changes, for example focusing on making your protein intake around 30–35% of your total calories.
- Track your current habits to identify realistic adjustments.
- Balance strength training and cardio, as maintaining your muscle is (and will remain) important.
- Signs of Progress:
- Slow changes in the numbers on the scale (up to 1 lb/week).
- Inches being lost (but probably not many), improved energy levels, and stable performance in workouts.
Caution: avoid feelings of extreme hunger or restriction. This is not supposed to be arduous.
2. Mini cut (short-term intensive)
Used for quick fat loss or breaking plateaus; lasts 7–14 days.
- Key strategies:
- Larger calorie deficit (e.g: 500 calories).
- High protein intake (40–50% of your total calories).
- Focus on strength training and reduce cardio, to avoid muscle loss.
- Signs of Progress:
- Rapid scale changes (up to 5 lbs/week).
- Reduced bloating, potential energy dips, and cravings.
- Temporary performance stagnation in workouts. Don’t worry about this; it’s expected and fine.
Caution: do not exceed 21 days, to avoid the metabolic adaptation that we talked about.
3. Diet break (rest & reset)
A maintenance period to recharge mentally and physically, typically lasting 7–21 days.
- Key strategies:
- Gradually increase calories (200–500) to maintenance level.
- Focus on performance goals and reintroducing foods you enjoy.
- Combine strength training with steady-state cardio.
- Signs of Progress:
- Increased energy, improved workout performance, and feeling fuller.
- Scale may fluctuate initially but stabilize or decrease by the end.
- Inches will be lost as muscle is built and fat is burned.
The purpose of this third stage is to prevent metabolic adaptation, regain motivation, and (importantly!) test maintenance.
For more on these and how best to implement them, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
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- Key strategies:
