Mythbusting The Big O
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“Early To Bed…”
In yesterday’s newsletter, we asked you for your (health-related) views on orgasms.
But what does the science say?
Orgasms are essential to good health: True or False?
False, in the most literal sense. One certainly won’t die without them. Anorgasmia (the inability to orgasm) is a condition that affects many postmenopausal women, some younger women, and some men. And importantly, it isn’t fatal—just generally considered unfortunate:
Anorgasmia Might Explain Why You’re Not Orgasming When You Want To
That article focuses on women; here’s a paper focusing on men:
Orgasms are good for the health, but marginally: True or False?
True! They have a wide array of benefits, depending on various factors (including, of course, one’s own sex). That said, the benefits are so marginal that we don’t have a flock of studies to cite, and are reduced to pop-science sources that verbally cite studies that are, alas, nowhere to be found, for example:
- For women: 9 Orgasm Benefits That Might Surprise You
- For men: 9 Ways Orgasms May Benefit Your Health
Doubtlessly the studies do exist, but are sparse enough that finding them is a nightmare as the keywords for them will bring up a lot of studies about orgasms and health that aren’t answering the above question (usually: health’s affect on orgasms, rather than the other way around).
There is some good science for post-menopausal women, though! Here it is:
Misconceptions About Sexual Health in Older Women
(if you have the time to read this, this also covers many very avoidable things that can disrupt sexual function, in ways that people will errantly chalk up to old age, not knowing that they are missing out needlessly)
Orgasms are good or bad, depending on being male or female: True or False
False, broadly. The health benefits are extant and marginal for almost everyone, as indicated above.
What’s that “almost” about, then?
There are a very few* people (usually men) for whom it doesn’t go well. In such cases, they have a chronic and lifelong problem whereby orgasm is followed by 2–7 days of flu-like and allergic symptoms. Little is known about it, but it appears to be some sort of autoimmune disorder.
Read more: Post-orgasmic illness syndrome: history and current perspectives
*It’s hard to say for sure how few though, as it is surely under-reported and thus under-diagnosed; likely even misdiagnosed if the patient doesn’t realize that orgasms are the trigger for such episodes, and the doctor doesn’t think to ask. Instead, they will be busy trying to eliminate foods from the diet, things like that, while missing this cause.
Orgasms are better avoided for optimal health: True or False?
Aside from the above, False. There is a common myth for men of health benefits of “semen retention”, but it is not based in science, just tradition. You can read a little about it here:
The short version is: do it if you want; don’t if you don’t; the body will compensate either way so it won’t make a meaningful difference to anything for most people, healthwise.
Small counterpoint: while withholding orgasm (and ejaculation) is not harmful to health, what does physiologically need draining sometimes is prostate fluid. But that can also be achieved mechanically through prostate milking, or left to fend for itself (as it will in nocturnal emissions, popularly called wet dreams). However, if you have problems with an enlarged prostate, it may not be a bad idea to take matters into your own hands, so to speak. As ever, do check with your doctor if you have (or think you may have) a condition that might affect this.
One final word…
We’re done with mythbusting for today, but we wanted to share this study that we came across (so to speak) while researching, as it’s very interesting:
On which note: if you haven’t already, consider getting a “magic wand” style vibe; you can thank us later (this writer’s opinion: everyone should have one!).
Top tip: do get the kind that plugs into the wall, not rechargeable. The plug-into-the-wall kind are more powerful, and last much longer (both “in the moment”, and in terms of how long the device itself lasts).
Enjoy!
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Lobster vs Crab – Which is Healthier?
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Our Verdict
When comparing lobster to crab, we picked the crab.
Why?
Generally speaking, most seafood is healthy in moderation (assuming it’s well-prepared, not poisonous, and you don’t have an allergy), and for most people, these two sea creatures are indeed considered a reasonable part of a healthy balanced diet.
In terms of macros, they’re comparable in protein, and technically crab has about 2x the fat, but in both cases it’s next to nothing, so 2x almost nothing is still almost nothing. And, if we break down the lipids profiles, crab has a sufficiently smaller percentage of saturated fat (compared to monounsaturated and polyunsaturated), that crab actually has less saturated fat than lobster. In balance, the category of macros is either a tie or a slight win for crab, depending on your personal priorities.
When it comes to vitamins, crab wins easily with more of vitamins A, B1, B2, B6, B9, B12, and C, in most cases by considerable margins (we’re talking multiples of what lobster has). Lobster, meanwhile, has more of vitamin B3 (tiny margin) and vitamin B5 (pantothenic acid, as in, the vitamin that’s in basically everything edible, and thus almost impossible to be deficient in unless literally starving).
The minerals scene is more balanced; lobster has more calcium, copper, manganese, and selenium, while crab has more iron, magnesium, phosphorus, potassium, and zinc. The margins are comparable from one creature to another, so all in all the 4:5 score means a modest win for crab.
Both of these creatures are good sources of omega-3 fatty acids, but crab is better.
Lobster and crab are both somewhat high in cholesterol, but crab is the relatively lower of the two.
In short: for most people most of the time, both are fine to enjoy in moderation, but if picking one, crab is the healthier by most metrics.
Want to learn more?
You might like to read:
Shrimp vs Caviar – Which is Healthier?
Take care!
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No-Exercise Exercise!
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Do you love to go to the gym?
If so, today’s article might not be for you so much. Or maybe it will, because let’s face it, exercise is fun!
At least… It can be, and should be 😎
So without further ado, here’s a slew of no-exercise exercise ideas; we’re willing to bet that somewhere in the list there’s at least some you haven’t tried before, and probably some you haven’t done in a while but might enjoy making a reprise!
Walking
No surprises here: walking is great. Hopefully you have some green spaces near you, but if you don’t, [almost] any walking is better than no walking. So unless there’s some sort of environmental disaster going on outside, lace up and get stepping.
If you struggle to “walk for walking’s sake” give yourself a little mission. Walk to the shop to buy one item. Walk to the park and find a flower to photograph. Walk to the library and take out a book. Whatever works for you!
See also: The Doctor Who Wants Us To Exercise Less, And Move More
Take the stairs
This one doesn’t need many words, just: make it a habit.
Treat the elevators as though they aren’t there!
See also: How To Really Pick Up (And Keep!) Those Habits
Dance
Dance is amazing! Any kind of dance, whatever suits your tastes. This writer loves salsa and tango, but no matter whether for you it’s zouk or zumba, breakdancing or line dancing, whatever gets you moving is going to be great for you.
If you don’t know how, online tutorials abound, and best of all is to attend local classes if you can, because they’re always a fun social experience too.
Make music
Not something often thought of as an exercise, but it is! Most instruments require that we be standing or siting with good posture, focusing intently on our movements, and often as not, breathing very mindfully too. And yes, it’s great for the brain as well!
Check out: This Is Your Brain on Music: The Science of a Human Obsession – by Dr. Daniel Levitin
Take a stand
If you spend a lot of time at a desk, please consider investing in a standing desk; they can be truly life-changing. Not only is it so much better for your back, hips, neck, and internal organs, but also it burns hundreds more calories than sitting, due to the no-exercise exercise that is keeping your body constantly stabilized while on your feet.
(or, if you’re like this writer: on your foot. I do have two feet, I just spend an inordinate amount of time at my desk standing on one leg at a time; I’m a bit of a flamingo like that)
See also: Deskbound: Standing Up to a Sitting World – by Kelly Starrett and Glen Cordoza
Sit, but…
Sit in a sitting squat! Sometimes called a Slav squat, or an Asian squat, or a resting squat, or various other names:
Click Here If The Embedded Video Doesn’t Load Automatically!
Alternatively, sitting in seiza (the traditional Japanese sitting position) is also excellent, but watch out! While it’s great once your body is accustomed to it, if you haven’t previously sat this way much, you may cut off your own circulation, hurt your knees, and (temporarily) lose feeling in your feet. So if you don’t already sit in seiza often, gradually work up the time period you spend sitting in seiza, so that your vasculature can adapt and improve, which honestly, is a very good thing for your legs and feet to have.
Breathe
Perhaps the absolute most “no-exercise exercise” there is. And yes, of course you are (hopefully) breathing all the time, but how you are breathing matters a lot:
The Inside Job Of Fixing Our Breathing: Exercises That Can Fix Sinus Problems (And More)
Clean
This doesn’t have to mean scrubbing floors like a sailor—even merely giving your house the Marie Kondo treatment counts, because while you’re distracted with all the objects, you’re going to be going back and forth, getting up and down, etc, clocking up lots of exercise that you barely even notice!
PS, check out: The Life-Changing Manga Of Tidying Up – by Marie Kondo
Garden
As with the above, it’s lots of activity that doesn’t necessarily feel like it (assuming you’re doing more pruning and weeding etc, and less digging ditches etc), and as a bonus, there are a stack of mental health benefits to being in a green natural environment and interacting with soil:
Read more: The Antidepressant In Your Garden
Climb
Depending on where you live, this might mean an indoor climbing wall, but give it a go! They have color-coded climbs from beginner to advanced, so don’t worry about being out of your depth.
And the best thing is, the beginner climbs will be as much a workout to a beginner as the advanced climbs will be to an advanced climber, because at the end of the day, you’re still clinging on for dear life, no matter whether it’s a sizeable handhold not far from the ground, or the impression of a fingernail crack in an overhang 100ft in the air.
Video games (but…)
Less in the category of Stardew Valley, and more in the category of Wii Fit.
So, dust off that old controller (or treat yourself to one if you didn’t have one already), and get doing a hundred sports and other physical activities in the comfort of your living room, with a surprisingly addictive gaming system!
Sex!
You probably don’t need instructions here, and if you do, well honestly, we’re running out of space today. But the answer to “does xyz count?” is “did it get your heart racing?” because if so, it counts
Take care!
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The Art Of Letting Go – by Nick Trenton
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You may be wondering: is this a basic CBT book? And, for the most part, no, it’s not.
It does touch on some of the time-tested CBT techniques, but a large part of the book is about reframing things in a different way, that’s a little more DBT-ish, and even straying into BA. But enough of the initialisms, let’s give an example:
It can be scary to let go of the past, or of present or future possibilities (bad ones as well as good!). However, it’s hard to consciously do something negative (same principle as “don’t think of a pink elephant”), so instead, look at it as taking hold of the present/future—and thus finding comfort and security in a new reality rather than an old memory or a never-actual imagining.
So, this book has a lot of ideas like that, and if even one of them helps, then it was worth reading.
The writing style is comprehensive, and goes for the “tell them what you’re gonna tell them; tell them; then tell them what you told them” approach, which a) is considered good for learning b) can feel a little like padding nonetheless.
Bottom line: this reviewer didn’t personally love the style, but the content made up for it.
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Glycemic Index vs Glycemic Load vs Insulin Index
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How To Actually Use Those Indices
Carbohydrates are essential for our life, and/but often bring about our early demise. It would be a very conveniently simple world if it were simply a matter of “enjoy in moderation”, but the truth is, it’s not that simple.
To take an extreme example, for the sake of clearest illustration: The person who eats an 80% whole fruit diet (and makes up the necessary protein and fats etc in the other 20%) will probably be healthier than the person who eats a “standard American diet”, despite not practising moderation in their fruit-eating activities. The “standard American diet” has many faults, and one of those faults is how it promotes sporadic insulin spikes leading to metabolic disease.
If your breakfast is a glass of orange juice, this is a supremely “moderate” consumption, but an insulin spike is an insulin spike.
Quick sidenote: if you’re wondering why eating immoderate amounts of fruit is unlikely to cause such spikes, but a single glass of orange juice is, check out:
Which Sugars Are Healthier, And Which Are Just The Same?
Glycemic Index
The first tool in our toolbox here is glycemic index, or GI.
GI measures how much a carb-containing food raises blood glucose levels, also called blood sugar levels, but it’s just glucose that’s actually measured, bearing in mind that more complex carbs will generally get broken down to glucose.
Pure glucose has a GI of 100, and other foods are ranked from 0 to 100 based on how they compare.
Sometimes, what we do to foods changes its GI.
- Some is because it changed form, like the above example of whole fruit (low GI) vs fruit juice (high GI).
- Some is because of more “industrial” refinement processes, such as whole grain wheat (medium GI) vs white flour and white flour products (high GI)
- Some is because of other changes, like starches that were allowed to cool before being reheated (or eaten cold).
Broadly speaking, a daily average GI of 45 is considered great.
But that’s not the whole story…
Glycemic Load
Glycemic Load, or GL, takes the GI and says “ok, but how much of it was there?”, because this is often relevant information.
Refined sugar may have a high GI, but half a teaspoon of sugar in your coffee isn’t going to move your blood sugar levels as much as a glass of Coke, say—the latter simply has more sugar in, and just the same zero fiber.
GL is calculated by (grams of carbs / 100) x GI, by the way.
But it still misses some important things, so now let’s look at…
Insulin Index
Insulin Index, which does not get an abbreviation (probably because of the potentially confusing appearance of “II”), measures the rise in insulin levels, regardless of glucose levels.
This is important, because a lot of insulin response is independent of blood glucose:
- Some is because of other sugars, some some is in response to fats, and yes, even proteins.
- Some is a function of metabolic base rate.
- Some is a stress response.
- Some remains a mystery!
Another reason it’s important is that insulin drives weight gain and metabolic disorders far more than glucose.
Note: the indices of foods are calculated based on average non-diabetic response. If for example you have Type 1 Diabetes, then when you take a certain food, your rise in insulin is going to be whatever insulin you then take, because your body’s insulin response is disrupted by being too busy fighting a civil war in your pancreas.
If your diabetes is type 2, or you are prediabetic, then a lot of different things could happen depending on the stage and state of your diabetes, but the insulin index is still a very good thing to be aware of, because you want to resensitize your body to insulin, which means (barring any urgent actions for immediate management of hyper- or hypoglycemia, obviously) you want to eat foods with a low insulin index where possible.
Great! What foods have a low insulin index?
Many factors affect insulin index, but to speak in general terms:
- Whole plant foods are usually top-tier options
- Lean and/or white meats generally have lower insulin index than red and/or fatty ones
- Unprocessed is generally lower than processed
- The more solid a food is, generally the lower its insulin index compared to a less solid version of the same food (e.g. baked potatoes vs mashed potatoes; cheese vs milk, etc)
But do remember the non-food factors too! This means where possible:
- reducing/managing stress
- getting frequent exercise
- getting good sleep
- practising intermittent fasting
See for example (we promise you it’s relevant):
Fix Chronic Fatigue & Regain Your Energy, By Science
…as are (especially recommendable!) the two links we drop at the bottom of that page; do check them out if you can
Take care!
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Butternut Squash vs Pumpkin – Which is Healthier?
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Our Verdict
When comparing butternut squash to pumpkin, we picked the butternut squash.
Why?
Both are great! But the butternut squash manages a moderate win in most categories.
In terms of macros, butternut squash has more of everything except water. Most notably, it has more protein and more fiber. Yes, more carbs too, but the fiber content means that it also has the lower glycemic index, by quite a bit.
When it comes to vitamins, pumpkin does have a little more of vitamin B1 and a lot more of vitamin E, while butternut squash has more of vitamins B3, B5, B9, C, K, and choline. They’re about equal in the other vitamins they both contain. A fair win for butternut squash.
In the category of minerals, butternut squash has more calcium, magnesium, manganese, and selenium, while pumpkin has more copper, iron, and phosphorus. They’re about equal in potassium and zinc. A marginal win for butternut squash.
Adding up the strong win, the fair win, and the marginal win, makes for an easy overall win for butternut squash!
Want to learn more?
You might like to read:
Superfood-Stuffed Squash Recipe
Take care!
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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
Don’t Forget…
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