Goji Berries: Which Benefits Do They Really Have?
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Are Goji Berries Really A Superfood?
Goji berries are popularly considered a superfood, and sold for everything from anti-aging effects, to exciting benefits* that would get this email directed to your spam folder if we described them.
*We searched so you don’t have to: there doesn’t seem to be much research to back [that claim that we can’t mention], but we did find one paper on its “invigorating” benefits for elderly male rats. We prefer to stick to human studies where we can!
So how does the science stack up for the more mainstream claims?
Antioxidant effects
First and most obvious for this fruit that’s full of helpful polysaccharides, carotenoids, phenolic acids, and flavonoids, yes, they really do have strong antioxidant properties:
Immune benefits
Things that are antioxidant are generally also anti-inflammatory, and often have knock-on benefits for the immune system. That appears to be the case here.
For example, in this small-but-statistically-significant study (n=60) in healthy adults (aged 55–72 years)
❝The GoChi group showed a statistically significant increase in the number of lymphocytes and levels of interleukin-2 and immunoglobulin G compared to pre-intervention and the placebo group, whereas the number of CD4, CD8, and natural killer cells or levels of interleukin-4 and immunoglobulin A were not significantly altered. The placebo group showed no significant changes in any immune measures.
Whereas the GoChi group showed a significant increase in general feelings of well-being, such as fatigue and sleep, and showed a tendency for increased short-term memory and focus between pre- and post-intervention, the placebo group showed no significant positive changes in these measures.❞
“GoChi” here is a brand name for goji berries, and it’s not clear from the abstract whether the company funded the study:
Here’s another study, this time n=150, and ages 65–70 years old. This time it’s with a different brand (“Lacto-Wolfberry”, a milk-with-goji supplement drink) and it’s also unclear whether the company funded the study. However, taking the data at face value:
❝In conclusion, long-term dietary supplementation with Lacto-Wolfberry in elderly subjects enhances their capacity to respond to antigenic challenge without overaffecting their immune system, supporting a contribution to reinforcing immune defense in this population. ❞
In other words: it allowed those who took it to get measurably more benefit from the flu vaccinations that they received, without any ill effects.
Anticancer potential
This one’s less contentious (the immune benefits seemed very credible; we’d just like to see more transparent research to say for sure), so in the more clearly-evidenced case against cancer we’ll just drop a few quick studies, clipped for brevity:
- Goji berry (Lycium barbarum) inhibits the proliferation, adhesion, and migration of oral cancer cells
- A closer look at immunomodulatory properties of goji berries extract in human colon cancer cells
- Lycium barbarum polysaccharides induce apoptosis in human prostate cancer cells and inhibits prostate cancer growth
- Identification of goji berry cyclic peptides and anticervical carcinoma activity
- Antiproliferative effects of Lycium barbarum’s (goji berry) fractions on breast cancer Cell Lines
You get the idea: it helps!
Bonus benefit for the eyes
Goji berries also help against age-related macular degeneration. The research for this is in large part secondary, i.e. goji berries contain things x, y, and z, and then separate studies say that those things help against age-related macular degeneration.
We did find some goji-specific studies though! One of them was for our old friends the “Lacto-Wolfberry” people and again, wasn’t very transparent, so we’ll not take up extra time/space with that one here.
Instead, here’s a much clearer, transparent, and well-referenced study with no conflicts of interest, that found:
❝Overall, daily supplementation with Goji berry for 90d improves MPOD by increasing serum Z levels rather than serum L levels in early AMD patients. Goji berry may be an effective therapeutic intervention for preventing the progression of early AMD.❞
- MPOD = Macular Pigment Optical Density, a standard diagnostic tool for age-related macular degeneration
- AMD = Age-related Macular Degeneration
(that whole paper is very compelling reading, if you have time)
If you want a quicker read, we offer:
How To Avoid Age-Related Macular Degeneration
and also…
Where to get goji berries?
You can probably find them at your local health food store, if not the supermarket. However, if you’d like to buy them online, here’s an example product on Amazon for your convenience
Enjoy!
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Strength training has a range of benefits for women. Here are 4 ways to get into weights
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Picture a gym ten years ago: the weights room was largely a male-dominated space, with women mostly doing cardio exercise. Fast-forward to today and you’re likely to see women of all ages and backgrounds confidently navigating weights equipment.
This is more than just anecdotal. According to data from the Australian Sports Commission, the number of women participating in weightlifting (either competitively or not) grew nearly five-fold between 2016 and 2022.
Women are discovering what research has long shown: strength training offers benefits beyond sculpted muscles.
Health benefits
Osteoporosis, a disease in which the bones become weak and brittle, affects more women than men. Strength training increases bone density, a crucial factor for preventing osteoporosis, especially for women negotiating menopause.
Strength training also improves insulin sensitivity, which means your body gets better at using insulin to manage blood sugar levels, reducing the risk of type 2 diabetes. Regular strength training contributes to better heart health too.
There’s a mental health boost as well. Strength training has been linked to reduced symptoms of depression and anxiety.
Improved confidence and body image
Unlike some forms of exercise where progress can feel elusive, strength training offers clear and tangible measures of success. Each time you add more weight to a bar, you are reminded of your ability to meet your goals and conquer challenges.
This sense of achievement doesn’t just stay in the gym – it can change how women see themselves. A recent study found women who regularly lift weights often feel more empowered to make positive changes in their lives and feel ready to face life’s challenges outside the gym.
Strength training also has the potential to positively impact body image. In a world where women are often judged on appearance, lifting weights can shift the focus to function.
Instead of worrying about the number on the scale or fitting into a certain dress size, women often come to appreciate their bodies for what they can do. “Am I lifting more than I could last month?” and “can I carry all my groceries in a single trip?” may become new measures of physical success.
Lifting weights can also be about challenging outdated ideas of how women “should” be. Qualitative research I conducted with colleagues found that, for many women, strength training becomes a powerful form of rebellion against unrealistic beauty standards. As one participant told us:
I wanted something that would allow me to train that just didn’t have anything to do with how I looked.
Society has long told women to be small, quiet and not take up space. But when a woman steps up to a barbell, she’s pushing back against these outdated rules. One woman in our study said:
We don’t have to […] look a certain way, or […] be scared that we can lift heavier weights than some men. Why should we?
This shift in mindset helps women see themselves differently. Instead of worrying about being objects for others to look at, they begin to see their bodies as capable and strong. Another participant explained:
Powerlifting changed my life. It made me see myself, or my body. My body wasn’t my value, it was the vehicle that I was in to execute whatever it was that I was executing in life.
This newfound confidence often spills over into other areas of life. As one woman said:
I love being a strong woman. It’s like going against the grain, and it empowers me. When I’m physically strong, everything in the world seems lighter.
Feeling inspired? Here’s how to get started
1. Take things slow
Begin with bodyweight exercises like squats, lunges and push-ups to build a foundation of strength. Once you’re comfortable, add external weights, but keep them light at first. Focus on mastering compound movements, such as deadlifts, squats and overhead presses. These exercises engage multiple joints and muscle groups simultaneously, making your workouts more efficient.
2. Prioritise proper form
Always prioritise proper form over lifting heavier weights. Poor technique can lead to injuries, so learning the correct way to perform each exercise is crucial. To help with this, consider working with an exercise professional who can provide personalised guidance and ensure you’re performing exercises correctly, at least initially.
3. Consistency is key
Like any fitness regimen, consistency is key. Two to three sessions a week are plenty for most women to see benefits. And don’t be afraid to occupy space in the weights room – remember you belong there just as much as anyone else.
4. Find a community
Finally, join a community. There’s nothing like being surrounded by a group of strong women to inspire and motivate you. Engaging with a supportive community can make your strength-training journey more enjoyable and rewarding, whether it’s an in-person class or an online forum.
Are there any downsides?
Gym memberships can be expensive, especially for specialist weightlifting gyms. Home equipment is an option, but quality barbells and weightlifting equipment can come with a hefty price tag.
Also, for women juggling work and family responsibilities, finding time to get to the gym two to three times per week can be challenging.
If you’re concerned about getting too “bulky”, it’s very difficult for women to bulk up like male bodybuilders without pharmaceutical assistance.
The main risks come from poor technique or trying to lift too much too soon – issues that can be easily avoided with some guidance.
Erin Kelly, Lecturer and PhD Candidate, Discipline of Sport and Exercise Science, University of Canberra
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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I want to eat healthily. So why do I crave sugar, salt and carbs?
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We all want to eat healthily, especially as we reset our health goals at the start of a new year. But sometimes these plans are sabotaged by powerful cravings for sweet, salty or carb-heavy foods.
So why do you crave these foods when you’re trying to improve your diet or lose weight? And what can you do about it?
There are many reasons for craving specific foods, but let’s focus on four common ones:
1. Blood sugar crashes
Sugar is a key energy source for all animals, and its taste is one of the most basic sensory experiences. Even without specific sweet taste receptors on the tongue, a strong preference for sugar can develop, indicating a mechanism beyond taste alone.
Neurons responding to sugar are activated when sugar is delivered to the gut. This can increase appetite and make you want to consume more. Giving into cravings also drives an appetite for more sugar.
In the long term, research suggests a high-sugar diet can affect mood, digestion and inflammation in the gut.
While there’s a lot of variation between individuals, regularly eating sugary and high-carb foods can lead to rapid spikes and crashes in blood sugar levels. When your blood sugar drops, your body can respond by craving quick sources of energy, often in the form of sugar and carbs because these deliver the fastest, most easily accessible form of energy.
2. Drops in dopamine and serotonin
Certain neurotransmitters, such as dopamine, are involved in the reward and pleasure centres of the brain. Eating sugary and carb-rich foods can trigger the release of dopamine, creating a pleasurable experience and reinforcing the craving.
Serotonin, the feel-good hormone, suppresses appetite. Natural changes in serotonin can influence daily fluctuations in mood, energy levels and attention. It’s also associated with eating more carb-rich snacks in the afternoon.
Low carb diets may reduce serotonin and lower mood. However, a recent systematic review suggests little association between these diets and risk for anxiety and depression.
Compared to men, women tend to crave more carb rich foods. Feeling irritable, tired, depressed or experiencing carb cravings are part of premenstrual symptoms and could be linked to reduced serotonin levels.
3. Loss of fluids and drops in blood sugar and salt
Sometimes our bodies crave the things they’re missing, such as hydration or even salt. A low-carb diet, for example, depletes insulin levels, decreasing sodium and water retention.
Very low-carb diets, like ketogenic diets, induce “ketosis”, a metabolic state where the body switches to using fat as its primary energy source, moving away from the usual dependence on carbohydrates.
Ketosis is often associated with increased urine production, further contributing to potential fluid loss, electrolyte imbalances and salt cravings.
4. High levels of stress or emotional turmoil
Stress, boredom and emotional turmoil can lead to cravings for comfort foods. This is because stress-related hormones can impact our appetite, satiety (feeling full) and food preferences.
The stress hormone cortisol, in particular, can drive cravings for sweet comfort foods.
A 2001 study of 59 premenopausal women subjected to stress revealed that the stress led to higher calorie consumption.
A more recent study found chronic stress, when paired with high-calorie diet, increases food intake and a preference for sweet foods. This shows the importance of a healthy diet during stress to prevent weight gain.
What can you do about cravings?
Here are four tips to curb cravings:
1) don’t cut out whole food groups. Aim for a well-balanced diet and make sure you include:
- sufficient protein in your meals to help you feel full and reduce the urge to snack on sugary and carb-rich foods. Older adults should aim for 20–40g protein per meal with a particular focus on breakfast and lunch and an overall daily protein intake of at least 0.8g per kg of body weight for muscle health
- fibre-rich foods, such as vegetables and whole grains. These make you feel full and stabilise your blood sugar levels. Examples include broccoli, quinoa, brown rice, oats, beans, lentils and bran cereals. Substitute refined carbs high in sugar like processed snack bars, soft drink or baked goods for more complex ones like whole grain bread or wholewheat muffins, or nut and seed bars or energy bites made with chia seeds and oats
2) manage your stress levels. Practise stress-reduction techniques like meditation, deep breathing, or yoga to manage emotional triggers for cravings. Practising mindful eating, by eating slowly and tuning into bodily sensations, can also reduce daily calorie intake and curb cravings and stress-driven eating
3) get enough sleep. Aim for seven to eight hours of quality sleep per night, with a minimum of seven hours. Lack of sleep can disrupt hormones that regulate hunger and cravings
4) control your portions. If you decide to indulge in a treat, control your portion size to avoid overindulging.
Overcoming cravings for sugar, salt and carbs when trying to eat healthily or lose weight is undoubtedly a formidable challenge. Remember, it’s a journey, and setbacks may occur. Be patient with yourself – your success is not defined by occasional cravings but by your ability to manage and overcome them.
Hayley O’Neill, Assistant Professor, Faculty of Health Sciences and Medicine, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Are You Eating AGEs?
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The Trouble of the AGEs
Advanced Glycation End-Products (AGEs) are the result of the chemical process of glycation, which can occur in your body in response to certain foods you ate, or you can consume them directly, if you eat animal products that contained them (because we’re not special and other animals glycate too, especially mammals such as pigs, cows, and sheep).
As a double-whammy, if you cook animal products (especially without water, such as by roasting or frying), extra AGEs will form during cooking.
When proteinous and/or fatty food turns yellow/golden/brown during cooking, that’s generally glycation.
If there’s starch present, some or all of that yellow/golden/brown stuff will be a Maillard Reaction Product (MRP), such as acrylamide. That’s not exactly a health food, but it’s nowhere near being even in the same ballpark of badness.
In short, during cooking:
- Proteinous/fatty food turns yellow/golden/brown = probably an AGE
- Starchy food turns yellow/golden/brown = probably a MRP
The AGEs are far worse.
What’s so bad about AGEs?
Let’s do a quick tour of some studies:
- The role of advanced glycation end-products in retinal ageing and disease
- Advanced glycation end-products and their circulating receptors predict cardiovascular disease mortality in older women
- Elevated serum advanced glycation end-products in obese indicate risk for the metabolic syndrome: a link between healthy and unhealthy obesity?
- Increased levels of serum advanced glycation end-products in women with polycystic ovary syndrome
- Advanced glycation end-products and their involvement in liver disease
- Effects of advanced glycation end-products on renal fibrosis and oxidative stress
- Role of advanced glycation end-products and oxidative stress in vascular complications in diabetes
- Cancer malignancy is enhanced by advanced glycation end-products
- Advanced glycation end-products in the pathogenesis of Alzheimer’s disease
We could keep going, but you probably get the picture!
What should we do about it?
There are three main ways to reduce serum AGE levels:
Reduce or eliminate consumption of animal products
Especially mammalian animal products, such as from pigs, cows, and sheep, especially their meat. Processed versions are even worse! So, steak is bad, but bacon and sausages are literally top-tier bad.
Cook wet
Dry cooking (which includes frying, and especially includes deep fat frying, which is worse than shallow frying which is worse than air frying) produces far more AGEs than cooking with methods that involve water (boiling, steaming, slow-cooking, etc).
As a bonus, adding acidic ingredients (e.g. vinegar, lemon juice, tomato juice) can halve the amount of AGEs produced.
Consume antioxidants
Our body does have some ability to deal with AGEs, but that ability has its limits, and our body can be easily overwhelmed if we consume foods that are bad for it. So hopefully you’ll tend towards a plant-based diet, but whether you do or don’t:
You can give your body a hand by consuming antioxidant foods and drinks (such as berries, tea/coffee, and chocolate), and/or taking supplements.
Want to know more about the science of this?
Check out…
Advanced Glycation End-Products in Foods and a Practical Guide to Their Reduction in the Diet
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Related Posts
Why Everyone You Don’t Like Is A Narcissist
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We’ve written before about how psychiatry tends to name disorders after how they affect other people, rather than how they affect the bearer, and this is most exemplified when it comes to personality disorders. For example:
“You have a deep insecurity about never being good enough, and you constantly mess up in your attempt to overcompensate? You may have Evil Bastard Disorder!”
“You have a crippling fear of abandonment and that you are fundamentally unloveable, so you do all you can to try to keep people close? You must have Manipulative Bitch Disorder!”
See also: Miss Diagnosis: Anxiety, ADHD, & Women
Antisocial DiagnosesThese days, it is easy to find on YouTube countless videos of how to spot a narcissist, with a list of key traits that all mysteriously describe exactly the exes of everyone in the comments.
And these days it is mostly “narcissist”, because “psychopath” and “sociopath” have fallen out of popular favor a bit:
- perhaps for coming across as overly sensationalized, and thus lacking credibility
- perhaps because “Narcissistic Personality Disorder (NPD)” exists in the DSM-5 (the US’s latest “Diagnostic and Statistical Manual of Mental Disorders”), while psychopathy and sociopathy are not mentioned as existing.
You may be wondering: what do “psychopathy” and “sociopathy” mean?
And the answer is: they mean whatever the speaker wants them to mean. Their definitions and differences/similarities have been vigorously debated by clinicians and lay enthusiasts alike for long enough that the scientific world has pretty much given up on them and moved on.
Stigma vs pathology
Because of the popular media (and social media) representation of NPD, it is easy to armchair diagnose one’s relative/ex/neighbor/in-law/boss/etc as being a narcissist, because the focus is on “narcissists do these bad things that are mean to people”.
If the focus were instead on “narcissists have cripplingly low self-esteem, and are desperate to not show weakness in a world they have learned is harsh and predatory”, then there may not be so many armchair diagnoses—or at the very least, the labels may be attached with a little more compassion, the same way we might with other mental health issues such as depression.
Not that those with depression get an easy time of it socially either—society’s response is generally some manner of “aren’t you better yet, stop being lazy”—but at the very least, depressed people are not typically viewed with hatred.
A quick aside: if you or someone you know is struggling with depression, here are some things that actually help:
The Mental Health First-Aid You’ll Hopefully Never Need
The disorder is not the problem
Maybe your relative, ex, neighbor, etc really is clinically diagnosable as a narcissist. There are still two important things to bear in mind:
- After centuries of diagnosing people with mental health maladies that we now know don’t exist per se (madness, hysteria, etc), and in recent decades countless revisions to the DSM and similar tomes, thank goodness we now have the final and perfect set of definitions that surely won’t be re-written in the next few years or so ← this is irony; it will absolutely be re-written numerous times yet because of course it’s still not a magically perfect descriptor of the broad spectrum of human nature
- The disorder is not the problem; the way they treat (or have treated) you is the problem.
For example, let’s take a key thing generally attributed to narcissists: a lack of empathy
Now, empathy can be divided into:
- affective empathy: the ability to feel what other people are feeling
- cognitive empathy: the ability to intellectually understand what other people are feeling (akin to sympathy, which is the same but with the requisite of having experienced the thing in question oneself)
A narcissist (as well as various other people without NPD) will typically have negligible affective empathy, and their cognitive empathy may be a little sluggish too.
Sluggish = it may take them a beat longer than most people, to realize what an external signifier of emotions means, or correctly guess how something will be felt by others. This can result in gravely misspeaking (or inappropriately emoting), after failing to adequately quickly “read the room” in terms of what would be a socially appropriate response. To save face, they may then either deny/minimize the thing they just said/did, or double-down on it and go on [what for them feels like] the counterattack.
As to why this shutting off of empathy happens: they have learned that the world is painful, and that people are sources of pain, and so—to avoid further pain—have closed themselves off to that, often at a very early age. This will also apply to themselves; narcissists typically have negligible self-empathy too, which is why they will commonly make self-destructive decisions, even while trying to put themselves first.
Important note on how this impacts other people: the “Golden Rule” of “treat others as you would wish to be treated” becomes intangible, as they have no more knowledge of their own emotional needs than they do of anyone else’s, so cannot make that comparison.
Consider: if instead of being blind to empathy, they were colorblind… You would probably not berate them for buying green apples when you asked for red. They were simply incapable of seeing that, and consequently made a mistake. So it is when it’s a part of the brain that’s not working normally.
So… Since the behavior does adversely affect other people, what can be done about it? Even if “hate them for it and call for their eradication from the face of the Earth” is not a reasonable (or compassionate) option, what is?
Take the bull by the horns
Above all, and despite all appearances, a narcissist’s deepest desire is simply to be accepted as good enough. If you throw them a life-ring in that regard, they will generally take it.
So, communicate (gently, because a perceived attack will trigger defensiveness instead, and possibly a counterattack, neither of which are useful to anyone) what behavior is causing a problem and why, and ask them to do an alternative thing instead.
And, this is important, the alternative thing has to be something they are capable of doing. Not merely something that you feel they should be capable of doing, but that they are actually capable of doing.
- So not: “be a bit more sensitive!” because that is like asking the colorblind person to “be a bit more observant about colors”; they are simply not capable of it and it is folly to expect it of them, because no matter how hard they try, they can’t.
- But rather: “it upsets me when you joke about xyz; I know that probably doesn’t make sense to you and that’s ok, it doesn’t have to. I am asking, however, if you will please simply refrain from joking about xyz. Would you do that for me?”
Presented with such, it’s much more likely that the narcissist will drop their previous attempt to be good enough (by joking, because everyone loves someone with a sense of humor, right?) for a new, different attempt to be good enough (by showing “behold, look, I am a good person and doing the thing you asked, of which I am capable”).
That’s just one example, but the same methodology can be applied to most things.
For tricks pertaining to how to communicate such things without causing undue resistance, see:
Seriously Useful Communication Skills
Take care!
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Darwin’s Bed Rest: Worthwhile Idea?
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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
❝I recall that Charles Darwin (of Evolution fame) used to spend a day a month in bed in order to maintain his physical and psychological equilibrium. Do you see merit in the idea?❞
Well, it certainly sounds wonderful! Granted, it may depend on what you do in bed :p
Descartes did a lot of his work from bed (and also a surprising amount of it while hiding in an oven, but that’s another story), which was probably not so good for the health.
As for Darwin, his health was terrible in quite a lot of ways, so he may not be a great model.
However! Certainly taking a break is well-established as an important and healthful practice:
How To Rest More Efficiently (Yes, Really)
❝I don’t like to admit it but I am getting old. Recently, I had my first “fall” (ominous word!) I was walking across some wet decking and, before I knew what had happened, my feet were shooting forwards, and I crashed to the ground. Luckily I wasn’t seriously damaged. But I was wondering whether you can give us some advice about how best to fall. Maybe there are some good videos on the subject? I would like to be able to practice falling so that it doesn’t come as such a shock when it happens!❞
This writer has totally done the same! You might like our recent main feature on the topic:
…if you’ll pardon the pun
Enjoy!
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What’s Lurking In Your Household Air?
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As individuals, we can’t do much about the outside air. We can try to spend more time in green spaces* and away from traffic, and we can wear face-masks—as was popular in Tokyo and other such large cities long before the pandemic struck.
*The well-known mental health benefits aside (and contrary to British politician Amber Rudd’s famous assertion in a televised political debate that “clean air doesn’t grow on trees”), clean air comes mostly from trees—their natural process of respiration scrubs not only carbon dioxide, but also pollutants, from the air before releasing oxygen without the pollutants. Neat!
See also this study: Site new care homes near trees and away from busy roads to protect residents’ lungs
We are fortunate to be living in a world where most of us in industrialized countries can exercise a great degree of control over our home’s climate. But, what to do with all that power?
Temperature
Let’s start with the basics. Outside temperature may vary, but you probably have heating and air conditioning. There’s a simple answer here; the optimal temperature for human comfort and wellbeing is 20℃ / 68℉:
Scientists Identify a Universal Optimal Temperature For Life on Earth
Note: this does not mean that that is the ideal global average temperature, because that would mean the polar caps are completely gone, the methane stored there released, many large cities underwater, currently hot places will be too hot for human life (e.g. outside temperatures above human body temperature), there will be mass extinctions of many kinds of animals and plants, including those we humans require for survival, and a great proliferation of many bugs that will kill us. Basically we need diversity for the planet to survive, arctic through to tropical and yes, even deserts (deserts are important carbon sinks!). The ideal global average temperature is about 14℃ (we currently have about 15℃ and rising).
But, for setting the thermostat in your home, 20℃ / 68℉ is perfect for most people, though down as far as 17℃ / 61℉ is fine too, provided other things such as humidity are in order. In fact, for sleeping, 18℃ / 62℉ is ideal. This is because the cooler temperature is one of the several things that tell our brain it is nighttime now, and thus trigger secretion of melatonin.
If you’re wondering about temperatures and respiratory viruses, by the way, check out:
The Cold Truth About Respiratory Infections: The Pathogens That Came In From The Cold
Humidity
Most people pay more attention to the temperature in their home than the humidity, and the latter is just as important:
❝Conditions that fall outside of the optimal range of 40–60% can have significant impacts on health, including facilitating infectious transmission and exacerbating respiratory diseases.
When humidity is too low, it can cause dryness and irritation of the respiratory tract and skin, making individuals more susceptible to infections.
When humidity is too high, it can create a damp environment that encourages the growth of harmful microorganisms like mould, bacteria, and viruses.❞
~ Dr. Gabriella Guarnieri et al.
So, if your average indoor humidity falls outside of that range, consider getting a humidifier or dehumidifier, to correct it. Example items on Amazon, for your convenience:
Humidity monitor | Humidifier | Dehumidifier
See also, about a seriously underestimated killer:
Pneumonia: Prevention Is Better Than Cure
Now, one last component to deal with, for perfect indoor air:
Pollution
We tend to think of pollution as an outdoors thing, and indeed, the pollution in your home will (hopefully!) be lower than that of a busy traffic intersection. However…
- The air you have inside comes from outside, and that matters if you’re in an urban area
- Even in suburban and rural areas, general atmospheric pollutants will reach you, and if you’ve ever been subject to wildfire smoke, you’ll know that’s no fun either.
- Gas appliances in the home cause indoor pollution, even when carbon monoxide is within levels considered acceptable. This polluting effect is much stronger for open gas flames (such as on gas cookers/stoves, or gas fires), than for closed gas heating systems (such as a gas-powered boiler for central heating).
- Wood stoves/fireplaces are not an improvement, in fact they are worse, and don’t get us started on coal. You should not be breathing these things, and definitely should not be burning them in an enclosed space.
- That air conditioning, humidifier, dehumidifier? They may be great for temperature and humidity, but please clean/change the filter more often than you think is necessary, or things will grow there and then your device will be adding pathogens to the air as it goes.
- Plug-in air-freshening devices? They may smell clean, but they are effectively spraying cleaning fluids into your lungs. So please don’t.
So, what of air purifiers? They can definitely be of benefit. for example:
But watch out! Because if you don’t clean/change the filter regularly, guess what happens! That’s right, it’ll be colonized with bacteria/fungus and then be blowing those at you.
And no, not all of them will be visible to the naked eye:
Is Unnoticed Environmental Mold Harming Your Health?
Taking a holistic approach
The air is a very important factor for the health of your lungs (and thus, for the health of everything that’s fed oxygen by your lungs), but there are more things we can do as well:
Seven Things To Do For Good Lung Health!
Take care!
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