Magnesium Glycinate vs Magnesium Citrate – Which is Healthier?
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Our Verdict
When comparing magnesium glycinate to magnesium citrate, we picked the citrate.
Why?
Both are fine sources of magnesium, a nutrient in which it’s very common to be deficient—a lot of people don’t eat many leafy greens, beans, nuts, and so forth that contain it.
A quick word on a third contender we didn’t include here: magnesium oxide is probably the most widely-sold magnesium supplement because it’s cheapest to make. It also has woeful bioavailability, to the point that there seems to be negligible benefit to taking it. So we don’t recommend that.
Magnesium glycinate and magnesium citrate are both absorbed well, but magnesium citrate is the most well-absorbed form of magnesium supplement.
In terms of the relative merits of the glycine or the citric acid (the “other part” of magnesium glycinate and magnesium citrate, respectively), both are also great nutrients, but the amount delivered with the magnesium is quite small in each case, and so there’s nothing here to swing it one way or the other.
For this reason, we went with the magnesium citrate, as the most readily bioavailable!
Want to try them out?
Here they are on Amazon:
Magnesium glycinate | Magnesium citrate
Enjoy!
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Fall Asleep In 2 Minutes (Doctor Explains)
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Beyond “sleep hygiene”, Dr. Siobhan Deshauer has insights to share:
Rest for your body and mind
First, do still do the basics. That means dimming/filtering lights for an hour before bed, lowering the room temperature a little, ensuring you have nice fresh sheets, not having alcohol or caffeine before bed, and getting out of bed if you’re not asleep within half an hour, to avoid associating being in bed with wakefulness.
Next, the extra tips:
- Progressive relaxation: tense and relax each muscle group from toes to head
- Box breathing: inhale, hold, exhale, and hold for 4 seconds each; helps calm the nervous system (it’s called “box breathing” because of the 4:4:4:4 setup)
- Diaphragmatic breathing: focus on belly breathing, with longer exhalation to activate the parasympathetic nervous system (note that this can, and even ideally should, be done at the same time as the previous)
- Cognitive shuffling: think of words starting with each letter of a chosen word while visualizing them (this is like “counting sheep”, but does the job better—the job in question being preventing your brain from moving to anything more strenuous or stressful)
For more on all of these plus some extra side-along advice, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Non-Sleep Deep Rest: A Neurobiologist’s Take ← a way to get many of the benefits of sleep, while awake
Take care!
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Which Comes First, Cardio or Weights? – by Alex Hutchinson
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This is a book of questions and answers, myths and busts, and in short, all things exercise.
It’s laid out as many micro-chapters with questions as headers. The explanations are clear and easy to understand, with several citations (of studies and other academic papers) per question.
While it’s quite comprehensive (weighing in at a hefty 300+ pages), it’s not the kind of book where one could just look up any given piece of information that one wants.
Its strength, rather, lies in pre-emptively arming the reader with knowledge, and correcting many commonly-believed myths. It can be read cover-to-cover, or just dipped into per what interests you (the table of contents lists all questions, so it’s easy to flip through).
Bottom line: if you’ve found the world of exercise a little confusing and would like it demystifying, this book will result in a lot of “Oooooh” moments.
Click here to check out Which Comes First, Cardio or Weights?, and know your stuff!
PS: the short answer to the titular question is “mix it up and keep it varied”
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Understanding Spinach Oxalates and Health
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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
❝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:
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Calculate (And Enjoy) The Perfect Night’s Sleep
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This is Dr. Michael Breus, a clinical psychologist and sleep specialist, and he wants you to get a good night’s sleep, every night.
First, let’s assume you know a lot of good advice about how to do that already in terms of environment and preparation, etc. If you want a recap before proceeding, then we recommend:
Get Better Sleep: Beyond The Basics
Now, what does he want to add?
Wake up refreshed
Of course, how obtainable this is will depend on the previous night’s sleep, but there is something important we can do here regardless, and it’s: beat sleep inertia.
Sleep inertia is what happens when we wake up groggy (for reasons other than being ill, drugged, etc) rather than refreshed. It’s not actually related to how much sleep we have, though!
Rather, it pertains to whether we woke up during a sleep cycle, or between cycles:
- If we wake up between sleep cycles, we’ll avoid sleep inertia.
- If we wake up during a sleep cycle, we’ll be groggy.
Deep sleep generally occurs in 90-minute blocks, albeit secretly that is generally 3× 20 minute blocks in a trenchcoat, with transition periods between, during which the brainwaves change frequency.
REM sleep generally occurs in 20 minute blocks, and will usually arrive in series towards the end of our natural sleep period, to fit neatly into the last 90-minute cycle.
Sometimes these will appear a little out of order, because we are complicated organic beings, but those are the general trends.
In any case, the take-away here is: interrupt them at your peril. You need to wake up between cycles. There are two ways you can do this:
- Carefully calculate everything, and set a very precise alarm clock (this will work so long as you are correct in guessing how long it will take you to fall asleep)
- Use a “sunrise” lamp alarm clock, that in the hour approaching your set alarm time, will gradually increase the light. Because the body will not naturally wake up during a cycle unless a threat is perceived (loud noise, physical rousing, etc), the sunrise lamp method means that you will wake up between sleep cycles at some point during that hour (towards the beginning or end, depending on what your sleep balance/debt is like).
Do not sleep in (even if you have a sleep debt); it will throw everything out.
Caffeine will not help much in the morning
Assuming you got a reasonable night’s sleep, your brain has been cleansed of adenosine (a sleepy chemical), and if you are suffering from sleep inertia, the grogginess is due to melatonin (a different sleepy chemical).
Caffeine is an adenosine receptor blocker, so that will do nothing to mitigate the effects of melatonin in your brain that doesn’t have any meaningful quantity of adenosine in it in the morning.
Adenosine gradually accumulates in the brain over the course of the day (and then gets washed out while we sleep), so if you’re sleepy in the afternoon (for reasons other than: you just had a nap and now have sleep inertia again), then caffeine can block that adenosine in the afternoon.
Of course, caffeine is also a stimulant (it increases adrenaline levels and promotes vasoconstriction), but its effects at healthily small doses are modest for most people, and you’d do better by splashing cold water on your face and/or listening to some upbeat music.
Learn more: The Two Sides Of Caffeine
Time your naps correctly (if you take naps)
Dr. Breus has a lot to say about this, based on a lot of clinical research, but as it’s entirely consistent with what we’ve written before (based on the exact same research), to save space we’ll link to that here:
How To Be An Expert Nap-Artist (With No “Sleep-Hangovers”)
Calculate your bedtime correctly
Remember what we said about sleep cycles? This means that that famous “7–9 hours sleep” is actually “either 7½ or 9 hours sleep”—because those are multiples of 90 minutes, whereas 8 hours (for example) is not.
So, consider the time you want to get up (ideally, this should be relatively early, and the same time every day), and then count backwards either 7½ or 9 hours sleep (you choose), add 20–30 minutes to fall asleep, and that’s your bedtime.
So for example: if you want to have 7½ hours sleep and get up at 6am, then your bedtime is anywhere between 10pm and 10:10pm.
Remember how we said not to sleep in, even if you have a sleep debt? Now is the time to pay it off, if you have one. If you normally sleep 7½ hours, then make tonight a 9-hour sleep (plus 20–30 minutes to fall asleep). This means you’ll still get up at 6am, but your bedtime is now anywhere between 8:30pm and 8:40pm.
Want to know more from Dr. Breus?
You might like this excellent book of his that we reviewed a while back:
The Power of When – by Dr. Michael Breus
Enjoy!
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Creatine’s Brain Benefits Increase With Age
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Creatine is generally thought of as a body-building supplement, and for most young people, that’s all it is. But with extra years come extra advantages, and creatine starts to confer cognitive benefits. Dr. Brad Stanfield shares the science:
What the science says
Although 95% of creatine is stored in muscles, 5% is found in the brain, where it helps produce energy needed for brain processes (and that’s a lot of energy—about 20% of our body’s metabolic base rate is accounted for by our brain).
In this video, Dr. Stanfield shares studies showing creatine improving memory, especially in older adults—and also in vegetarians/vegans, since creatine is found in meat (just like in our own bodies, which are also made of meat) and not in plants. On the meta-analysis level, a systematic review concluded that creatine supplementation indeed improves memory, with stronger effects observed in older adults.
Dr. Stanfield also addresses the safety concerns about creatine, which, on balance, are not actually supported by the science (of course, always consult your own doctor to be sure, as your case could vary).
As for dosage, 5g/day is recommended. For more on all of this plus links to the studies cited, enjoy:
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Want to learn more?
You might also like to read:
Creatine: Very Different For Young & Old People
Take care!
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How To Grow New Brain Cells (At Any Age)
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How To Grow New Brain Cells (At Any Age)
It was long believed that brain growth could not occur later in life, due to expending our innate stock of pluripotent stem cells. However, this was mostly based on rodent studies.
Rodent studies are often used for brain research, because it’s difficult to find human volunteers willing to have their brains sliced thinly (so that the cells can be viewed under a microscope) at the end of the study.
However, neurobiologist Dr. Maura Boldrini led a team that did a lot of research by means of autopsies on the hippocampi of (previously) healthy individuals ranging in age from 14 to 79.
What she found is that while indeed the younger subjects did predictably have more young brain cells (neural progenitors and immature neurons), even the oldest subject, at the age of 79, had been producing new brain cells up until death.
Read her landmark study: Human Hippocampal Neurogenesis Persists throughout Aging
There was briefly a flurry of news articles about a study by Dr. Shawn Sorrels that refuted this, however, it later came to light that Dr. Sorrels had accidentally destroyed his own evidence during the cell-fixing process—these things happen; it’s just unfortunate the mistake was not picked up until after publication.
A later study by a Dr. Elena Moreno-Jiménez fixed this flaw by using a shorter fixation time for the cell samples they wanted to look at, and found that there were tens of thousands of newly-made brain cells in samples from adults ranging from 43 to 87.
Now, there was still a difference: the samples from the youngest adult had 30% more newly-made braincells than the 87-year-old, but given that previous science thought brain cell generation stopped in childhood, the fact that an 87-year-old was generating new brain cells 30% less quickly than a 43-year-old is hardly much of a criticism!
As an aside: samples from patients with Alzheimer’s also had a 30% reduction in new braincell generation, compared to samples from patients of the same age without Alzheimer’s. But again… Even patients with Alzheimer’s were still growing some new brain cells.
Read it for yourself: Adult hippocampal neurogenesis is abundant in neurologically healthy subjects and drops sharply in patients with Alzheimer’s disease
Practical advice based on this information
Since we can do neurogenesis at any age, but the rate does drop with age (and drops sharply in the case of Alzheimer’s disease), we need to:
Feed your brain. The brain is the most calorie-consuming organ we have, by far, and it’s also made mostly of fat* and water. So, get plenty of healthy fats, and get plenty of water.
*Fun fact: while depictions in fiction (and/or chemically preserved brains) may lead many to believe the brain has a rubbery consistency, the untreated brain being made of mostly fat and water gives it more of a blancmange-like consistency in reality. That thing is delicate and spatters easily. There’s a reason it’s kept cushioned inside the strongest structure of our body, far more protected than anything in our torso.
Exercise. Specifically, exercise that gets your blood pumping. This (as our earlier-featured video today referenced) is one of the biggest things we can do to boost Brain-Derived Neurotrophic Factor, or BDNF.
Here be science: Brain-Derived Neurotrophic Factor, Depression, and Physical Activity: Making the Neuroplastic Connection
However, that’s not the only way to increase BDNF; another is to enjoy a diet rich in polyphenols. These can be found in, for example, berries, tea, coffee, and chocolate. Technically those last two are also botanically berries, but given how we usually consume them, and given how rich they are in polyphenols, they merit a special mention.
See for example: Effects of nutritional interventions on BDNF concentrations in humans: a systematic review
Some supplements can help neuron (re)growth too, so if you haven’t already, you might want to check out our previous main feature on lion’s mane mushroom, a supplement which does exactly that.
For those who like videos, you may also enjoy this TED talk by neuroscientist Dr. Sandrine Thuret:
Prefer text? Click here to read the transcript
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