Vaginal Probiotics: What Does The Science Say?
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
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 😎
❝Is there any merit to vaginal probiotics?❞
What a fun question! First let’s break it down, as this could mean two different things:
- Probiotics, which you consume, using your mouth, which are marketed as benefiting vaginal health
- Probiotics taken as a vaginal pessary/suppository, to act directly there
The former has limited evidence for it, but generally speaking, improving one’s gut health improves all other areas of health, so it’s not surprising if it helps this too.
See for example:
Some notes:
- candidal vaginitis means a yeast infection causing vaginal inflammation
- bacterial vaginosis means a vaginal bacterial imbalance (generally also featuring vaginal inflammation, though it can be asymptomatic)
In the latter case, the “imbalance” in question is usually a shortage of Lactobacillus sp. (that is to say, the diverse species of the Lactobacillus genus) resulting in an overgrowth of other kinds of bacteria, which in turn results in changing the vaginal microbiome to make it warmer and more acidic than it should be.
While a healthy vagina shouldn’t smell of roses, it shouldn’t smell fishy either; if it does, that’s a sign of bacterial vaginosis.
What it’s supposed to be like: slightly bitter, slightly salty, distinctly umami, along with a cocktail of personal pheromones (and if menstruating or otherwise* vaginally bleeding, then of course add: iron/”metallic”). The pheromones will also reflect any hormonal changes, but should never make anything smell bad, just different.
*e.g. due to PCOS, fibroids, etc. Note that in the case of PCOS, it may also smell a little different (if it does, then usually: a little more musky), due to often different hormone levels. Again: it still shouldn’t smell bad, though, just different.
In the above-linked study, taking more live Lactobacillus acidophilus (in yogurt, eating it, with their mouths) improved levels of L. acidophilus in the vagina. While the study authors concluded “this ingestion of yogurt may have reduced episodes of bacterial vaginosis”, which is rather a weak claim, it can be argued that it merely improving the levels of L. acidophilus in the vagina was already a win.
That was a small (n=42, and only 7 followed through to completion) and old (1996) study, and it bears mentioning that most of the studies into this seem to be small and old, but conclude similarly with weakly positive statements.
However, it does make a difference what kind of Lactobacillus is used, for example in this next study…
- L. fermentum RC-14 worked well (90% success rate)
- L. rhamnosus GR-1 worked somewhat (40% success rate)
- L. rhamnosus GG did not work (0% success rate)
So, diversity is key, and getting a wide range of Lactobacillus sp. seems to be a safe bet.
Short version: enjoying probiotics as part of your diet probably improves vaginal health, just like it improves pretty much everything else.
See also: Make Friends With Your Gut (You Can Thank Us Later)
You would think that this would mean that taking probiotics as a vaginal pessary/suppository would be even better, but the results are weaker, as in this study, which produced temporary improvements in about half the study group, with only 3 out of 28 being free of bacterial vaginosis the next month:
Treatment of bacterial vaginosis with lactobacilli
This study got better results, with a 61% success rate:
Important note
Do note that this last category, involving topical treatments (i.e., manually introducing Lactobacillus sp. to the vagina) were all in cases of pre-existing bacterial vaginosis, not as a prophylactic and/or general health-improving thing.
If your vagina seems happy right now, then do not mess with its happy bacterial balance!
And at all times (regardless of whether it seems happy right now or not): do not douche (it does not need it and will not benefit from it; the vagina is self-cleaning*) as this will wash out many of your Lactobacilli and will do absolutely nothing against any Candida there (C. albicans being a rooted fungus, whereas Lactobacillus is a sausage-shaped bacterium with many tiny appendages but no actual ability to stay put), so Candida will flourish in the Lactobacillus’s absence.
*by the vagina, we are referring to the vaginal canal. The vulva—the outside part consisting of the two pairs of labia, the glans clitoris, and clitoral hood—are not self-cleaning, and should just be washed gently per your normal bath/shower routine; that’s perfectly fine and good.
And definitely don’t put any “cleansing” toiletries inside the vagina (or any toiletries at all, for that matter), even if they are sold and marketed for that purpose; they will not help and they will harm.
Also, due to their neighborliness, messing up the microbiome inside the vagina is a common way to also get Candida inside the urethra:
How To Avoid Urinary Tract Infections (UTIs)
One other option
Finally, unless you have a “very good friend” you have a pressing urge to swap germs with, you might want to leave this one to the scientists, but we share this paper just for interest:
Lastly…
Going back to oral supplementation, if you’d like to try that then check out this for further notes on what, why, how, etc:
How Much Difference Do Probiotic Supplements Make To Health?
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Bushfire smoke affects children differently. Here’s how to protect them
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Bushfires are currently burning in Australian states including Victoria, Tasmania, Western Australia and South Australia. In some areas, fire authorities have warned residents about the presence of smoke.
Bushfire smoke is harmful to our health. Tiny particles of ash can lodge deep in the lungs.
Exposure to this type of smoke may worsen existing conditions such as asthma, and induce a range of health effects from irritation of the eyes, nose and throat to changes in the cardiovascular system.
Public health recommendations during smoke events tend to provide general advice, and don’t often include advice specifically geared at children. But children are not just little adults. They are uniquely vulnerable to environmental hazards such as bushfire smoke for a number of reasons.
Different physiology, different behaviour
Children’s lungs are still developing and maturing.
Airways are smaller in children, especially young children, which is associated with greater rates of particle deposition – when particles settle on the surfaces of the airways.
Children also breathe more air per kilogram of body weight compared with adults, and therefore inhale more polluted air relative to their size.
Further, children’s detoxification systems are still developing, so environmental toxins take longer to effectively clear from their bodies.
Meanwhile, children’s behaviour and habits may expose them to more environmental toxins than adults. For example, they tend to do more physical activity and spend more time outdoors. Higher levels of physical activity lead to more air inhaled per kilogram of body weight.
Also, a normal and important part of children’s early play is exploring their environment, including by putting things in their mouth. This can result in kids ingesting soil, dust and dirt, which often contain environmental contaminants.
For these reasons, it’s important to consider the specific needs of children when providing advice on what to do when there’s smoke in the air.
Keeping our environments healthy
The Australian government offers recommendations for minimising the health risks from exposure to bushfire smoke. The main advice includes staying indoors and keeping doors and windows closed.
This is great advice when the smoke is thick outside, but air pollutants may still accumulate inside the home. So it’s important to air your home once the smoke outside starts to clear. Take advantage of wind changes to open up and get air moving out of the house with a cross breeze.
Kids are natural scientists, so get them involved. For example, you and your child can “rate” the air each hour by looking at a landmark outside your home and rating how clearly you can see it. When you notice the haze is reducing, open up the house and clear the air.
Because air pollutants settle onto surfaces in our home and into household dust, an easy way to protect kids during smoky periods is to do a daily dust with a wet cloth and vacuum regularly. This will remove pollutants and reduce ingestion by children as they play. Frequent hand washing helps too.
Healthy bodies and minds
Research exploring the effects of bushfire smoke exposure on children’s health is sparse. However, during smoke events, we do see an increase in hospital visits for asthma, as well as children reporting irritation to their eyes, nose and throat.
If your child has asthma or another medical condition, ensure they take any prescribed medications on a regular schedule to keep their condition well controlled. This will minimise the risk of a sudden worsening of their symptoms with bushfire smoke exposure.
Make sure any action plans for symptom flare-ups are up to date, and ensure you have an adequate supply of in-date medication somewhere easy to locate and access.
Children may be anxious during a bushfire.
Media_Photos/ShutterstockKids can get worried during bushfires, and fire emergencies have been linked with a reduction in children’s mental health. Stories such as the Birdie’s Tree books can help children understand these events do pass and people help one another in times of difficulty.
Learning more about air pollution can help too. Our group has a children’s story explaining how air pollution affects our bodies and what can help.
It’s also important for parents and caregivers not to get too stressed, as children cope better when their parents manage their own anxiety and help their children do the same. Try to strike a balance between being vigilant and staying calm.
What about masks?
N95 masks can protect the wearer from fine particles in bushfire smoke, but their use is a bit complicated when it comes to kids. Most young children won’t be able to fit properly into an N95 mask, or won’t tolerate the tight fit for long periods. Also, their smaller airways make it harder for young children to breathe through a mask.
If you choose to use an N95 mask for your children, it’s best to save them for instances when high-level outdoor exposure is unavoidable, such as if you’re going outside when the smoke is very thick.
N95 masks should be replaced after around four hours or when they become damp.
If your child has an existing heart or lung condition, consult their doctor before having them wear an N95 mask.
Our team is currently recruiting for a study exploring the effects of bushfire smoke in children. If you live in south east Queensland and are interested in participating in the event of a bushfire or hazard reduction burn near your home, please express your interest here.
Dwan Vilcins, Group leader, Environmental Epidemiology, Children’s Health Environment Program, The University of Queensland; Nicholas Osborne, Associate Professor, School of Public Health, The University of Queensland, and Paul D. Robinson, Conjoint Professor in Respiratory and Sleep Medicine, Child Health Research Centre, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Cherries vs Blueberries – Which is Healthier?
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Our Verdict
When comparing cherries to blueberries, we picked the blueberries.
Why?
It was close! And blueberries only won by virtue of taking an average value for cherries; we could have (if you’ll pardon the phrase) cherry-picked tart cherries for extra benefits that’d put them ahead of blueberries. That’s how close it is.
In terms of macros, they are almost identical, so nothing to set them apart there.
In the category of vitamins, they are mostly comparable except that blueberries have a lot more vitamin K, and cherries have a lot more vitamin A. Since vitamin K is the vitamin that’s scarcer in general, we’ll call blueberries’ vitamin K content a win.
Blueberries do also have about 6x more vitamin E, with a cup of blueberries containing about 10% of the daily requirement (and cherries containing almost none). Another small win for blueberries.
When it comes to minerals, they are mostly comparable; the largest point of difference is that blueberries contain more manganese while cherries contain more copper; nothing to decide between them here.
We’re down to counting amino acids and antioxidants now, so blueberries have a lot more cystine and tyrosine. They also have slightly more of amino acids that they both only have trace amounts of. And as for antioxidants? Blueberries contain notably more quercetin.
So, blueberries win the day—but if we had specified tart cherries rather than taking an average, they could have come out on top. Enjoy both!
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Balanced Energy Cake Bars
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Unlike a lot of commercially available products, these bars won’t spike your blood sugars in the same way. There’s technically plenty of sugar in them, mostly from the chopped dates, but they’re also full of fiber, protein, and healthy fats. This means they can give you an energy boost (along with lots of gut-healthy, heart-healthy, and brain-healthy ingredients) without any crash later. They’re also delicious, and make for a great afternoon snack!
You will need
- 1 cup oats
- 15 Medjool dates, pitted and soaked in hot water for 15 minutes
- 3 carrots, grated
- 4oz almond butter
- 2 tbsp tahini
- 2 tbsp flaxseeds, milled
- 1 tbsp sesame seeds, toasted
- Optional: your choice of dried fruit and/or chopped nuts (mix it up; diversity is good!)
Method
(we suggest you read everything at least once before doing anything)
1) Steam the grated carrots for 3–4 minutes; pat dry and allow to cool
2) Drain and pat dry the dates, roughly chop them and add them to a bowl with the carrots. Because we chopped the dates rather than blended them (as many recipes do), they keep their fiber, which is important.
3) Add the oats, seeds, almond butter, and tahini. Also add in any additional dried fruit and/or chopped nuts you selected for the optional part. Mix well; the mixture should be quite firm. If it isn’t, add more oats.
4) Press the mixture into a 10″ square baking tin lined with baking paper. Refrigerate for a few hours, before cutting into bar shapes (or squares if you prefer). These can now be eaten immediately or stored for up to a week.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
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Food Expiration Dates Don’t Mean What Most People Think They Mean
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Have you ever wondered why rock salt that formed during the Precambrian era has a label on it saying that it expires next month? To take something more delicate, how about eggs that expire next Thursday; isn’t that oddly specific for something that is surely affected by many variables? What matters, and what doesn’t?
Covering their assets
The US in particular wastes huge amounts of food, with 37% of food waste coming from households. Confusion over date labels is a major contributor, accounting for 20% of household food waste. Many people misinterpret these labels, often discarding food that is still safe to eat—which is good for the companies selling the food, because then they get to sell you more.
Date labels were introduced in the 70s with the “open dating” system to indicate optimal freshness, not safety. These dates are often conservative, set by manufacturers to ensure food is consumed at its best quality and encourage repeat purchases. However, many foods remain safe well past their labeled dates, including shelf-stable items like pasta, rice, and canned goods, as well as frozen foods stored properly.
Some foods do pose safety risks, especially meat and dairy products, as well as many grain-based foods, all of which which can harbor harmful bacteria. Infant formula labels are strictly regulated for safety. However, most date labels are not linked to health risks, leading to unnecessary waste.
When it comes down to it, our senses of sight, smell, and taste are more reliable than dates on packaging. Some quick pointers and caveats:
- If it has changed color in some way that’s not associated with a healthily ripening fruit or vegetable, that’s probably bad
- If it is moldy, that’s probably bad (but the degree of badness varies from food to food; see the link beneath today’s video for more on that)
- If a container has developed droplets of water on the inside when it didn’t have those before, that’s probably bad (it means something is respiring, and is thus alive, that probably shouldn’t be)
- If it smells bad, that’s probably bad—however this is not a good safety test, because a bad smell may often mean you are inhaling mold spores, which are not good for your lungs.
- If it tastes different than that food usually does, that’s probably bad (especially if it became bitter, pungent, tangy, sour, or cheesy, and does nor normally taste that way).
Some places have trialled clearer labelling, for example a distinction between “expires” and merely “best before”, but public awareness about the distinction is low. Some places have trialled removing dates entirely, to oblige the consumer to use their own senses instead. This is good for the seller in a different way than household food waste is, because it means the seller will have less in-store waste (because they can still sell something that might previously have been labelled as expired).
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
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Genital herpes is on the rise. Here’s what to know about this common infection
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The World Health Organization (WHO) recently released new estimates suggesting around 846 million people aged between 15 and 49 live with a genital herpes infection.
That’s equivalent to one in every five people from that age group.
At least one person each second (42 million people annually) contracts a new genital herpes infection.
So what is genital herpes, and are cases on the rise? Here’s what to know about this common infection.
Peakstock/Shutterstock First, what causes genital herpes?
Genital herpes is a sexually transmitted infection (STI) caused by the herpes simplex virus, which also causes cold sores.
There are two types of herpes simplex virus, HSV-1 and HSV-2 (and it’s possible to be infected by both at the same time).
HSV-1 most commonly spreads through oral contact such as kissing or sharing infected objects such as lip balm, cups or utensils, and presents as cold sores (or oral herpes) around the mouth. But it can also be sexually transmitted to cause a genital herpes infection.
An estimated 3.8 billion people under the age of 50 (64%) globally have HSV-1.
HSV-2 is less prevalent, but almost always causes a genital herpes infection. Some 520 million people aged 15–49 (13%) worldwide are believed to have HSV-2.
The initial episode of genital herpes can be quite painful, with blisters, ulcers and peeling skin around the genitals over 7–10 days.
Not all people have severe (or any) initial symptoms. This means a person might not know they have been infected with a herpes virus.
Herpes is a lifelong infection, which means once you contract the virus, you have it forever. After an initial episode, subsequent episodes can occur, but are usually less painful or even symptom free.
Both oral and genital herpes are particularly easy to spread when you have active lesions (cold sores or genital ulcers). But even with no symptoms, herpes can still be spread to a partner.
And although relatively rare, oral herpes can be transmitted to the genital area, and genital herpes can be transmitted to the mouth through oral sex.
If an expectant mother exhibits a genital herpes infection close to childbirth, there are risks to the baby. A herpes infection can be very serious in a baby, and the younger the infant, the more vulnerable they are. This is also one reason why you should avoid kissing a baby on the mouth.
Changing trends
WHO’s recent figures brought together data from around the world to estimate the prevalence of genital herpes in 2020, compared with previous estimates in 2012 and 2016.
This data shows no significant difference in the prevalence of genital herpes caused by HSV-2 since 2016, but does highlight increases in genital herpes infections caused by HSV-1.
The estimated number of genital HSV-1 infections globally was nearly twice as high in 2020 compared with 2016 (376 million compared with 192 million).
A 2022 study looking at Australia, New Zealand and Canada found more than 60% of genital herpes infections are still caused by HSV-2. But this is declining by about 2% each year while new genital infections that result from HSV-1 are rising.
Genital herpes can be quite painful, presenting as sores and lesions that in severe cases, may take up to a month to fully heal. Christian Moro There’s no simple fix, but safe sex is important
Genital herpes causes a substantial disease burden and economic cost to health-care services.
With such a large proportion of the world’s population infected with HSV-1, evidence this virus is increasingly causing genital herpes is concerning.
There’s no cure for genital herpes, but some medications, such as antivirals, can help reduce the amount of virus present in the system. While this won’t kill it completely, it helps to prevent symptomatic genital herpes recurrences, improve quality of life, and minimise the risk of transmission.
To prevent the spread of genital herpes and other STIs, practise safe sex, particularly if you’re not sure of your partner’s sexual health. You need to use a barrier method such as condoms to protect against STIs (a contraceptive such as the pill won’t work). This includes during oral sex.
As herpes is now so common, testing is not usually included as part of a regular sexual health check-up, except for in specific circumstances such as during pregnancy or severe episodes.
So it’s wise not to let your guard down, even if your partner insists they have received the all-clear from a recent check-up.
If there are herpes lesions present around the genitals, avoid sex entirely. Even condoms are not fully effective at these times, as exposed areas can still transmit the infection.
Practising safe sex can help prevent the spread of herpes. cottonbro studio/Pexels Immune health
If you are infected with HSV-1 or HSV-2 it’s more likely symptoms will appear when you’re stressed, tired or overwhelmed. During these times, our immune system may not be as functional, and dormant viruses such as herpes can start to develop quickly in our bodies.
To reduce the risk of recurrent herpes infections, try to eat healthily, get at least seven hours of sleep each night if possible, and look out for when your body may be telling you to take a step back and relax. This self-care can go a long way towards keeping latent viruses at bay.
While the prevalence has increased significantly in recent years, we have not lost the war on genital herpes just yet. Safe sexual practices, education and awareness can help reduce its spread, and the stigma around it.
If you have personal concerns, you should discuss them with a medical professional.
Christian Moro, Associate Professor of Science & Medicine, Bond University and Charlotte Phelps, Senior Teaching Fellow in Medicine, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Does Your Butt…Wink?
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What is a Butt Wink?
A “butt wink” is a common issue that occurs during squatting exercises.
Now, we’ve talked about the benefits of squatting countless times (see here or here for just a few examples). As with all exercises, using the correct technique is imperative, helping to both reduce injury and maximize gain.
Given butt winks are a common issue when squatting, we thought it natural to devote an article to it.
So, a butt wink happens when, at the bottom of your squat position, your pelvis tucks rotates backward (otherwise known as a “posterior pelvic tilt”) and the lower back rounds. This motion looks like a slight ‘wink’, hence the name.
How to Avoid Butt Winking
When the pelvis tucks under and the spine rounds, it can put undue pressure on the lumbar discs. This is especially risky when squatting with weights, as it can exacerbate the stress on the spine.
To avoid a butt wink, it’s important to maintain a neutral spine throughout the squat and to work on flexibility and strength in the hips, glutes, and hamstrings. Adjusting the stance width or foot angle during squats can also help in maintaining proper form.
A visual representation would likely work better than our attempt at describing what to do, so without further ado, here’s today’s video:
How was the video? If you’ve discovered any great videos yourself that you’d like to share with fellow 10almonds readers, then please do email them to us!
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