Gut Health and Anxiety
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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’d like to read articles on gut health and anxiety❞
We hope you caught yesterday’s edition of 10almonds, which touched on both of those! Other past editions you might like include:
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Fisetin: The Anti-Aging Assassin
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Out With The Old…
Fisetin is a flavonoid (specifically, a flavonol), but it’s a little different than most. While it has the usual antioxidant, anti-inflammatory, and anti-cancer properties you might reasonably expect from flavonoids, it has an extra anti-aging trick up its sleeve that most don’t.
❝Fisetin is a flavonol that shares distinct antioxidant properties with a plethora of other plant polyphenols. Additionally, it exhibits a specific biological activity of considerable interest as regards the protection of functional macromolecules against stress which results in the sustenance of normal cells cytoprotection. Moreover, it shows potential as an anti-inflammatory, chemopreventive, chemotherapeutic and recently also senotherapeutic agent❞
~ Dr. Grynkiewicz & Dr. Demchuk
Let’s briefly do some due diligence on its expected properties, and then we’ll take a look at its bonus anti-aging effects.
The flavonol that does-it-ol
Because of the similar mechanisms involved, there are three things that often come together, which are:
- Antioxidant
- Anti-inflammatory
- Anticancer
This list often gets expanded to also include:
- Anti-aging
…although that is usually the last thing to get tested out of that list.
In today’s case, let’s kick it off with…
❝Fisetin (3,3′,4′,7-tetrahydroxyflavone) is a dietary flavonoid found in various fruits (strawberries, apples, mangoes, persimmons, kiwis, and grapes), vegetables (tomatoes, onions, and cucumbers), nuts, and wine that has shown strong anti-inflammatory, anti-oxidant, anti-tumorigenic, anti-invasive, anti-angiogenic, anti-diabetic, neuroprotective, and cardioprotective effects❞
Read more: Fisetin and Its Role in Chronic Diseases
Understanding its anticancer mechanisms
The way that fisetin fights cancer is basically “all the ways”, and this will be important when we get to its special abilities shortly:
❝Being a potent anticancer agent, fisetin has been used to inhibit stages in the cancer cells (proliferation, invasion),prevent cell cycle progression, inhibit cell growth, induce apoptosis, cause polymerase (PARP) cleavage, and modulate the expressions of Bcl‐2 family proteins in different cancer cell lines (HT‐29, U266, MDA‐MB‐231, BT549, and PC‐3M‐luc‐6), respectively. Further, fisetin also suppresses the activation of the PKCα/ROS/ERK1/2 and p38 MAPK signaling pathways, reduces the NF‐κB activation, and down‐regulates the level of the oncoprotein securin. Fisetin also inhibited cell division and proliferation and invasion as well as lowered the TET1 expression levels. ❞
Read more: Fisetin: An anticancer perspective
There’s also more about it than we even have room to quote, here:
Now For What’s New And Exciting: Senolysis
All that selectivity that fisetin exhibits when it comes to “this cell gets to live, and this one doesn’t” actions?
It makes a difference when it comes to aging, too. Because aging and cancer happen by quite similar mechanisms; they’re both DNA-copying errors that get copied forward, to our detriment.
- In the case of cancer, it’s a cell line that accidentally became immortal and so we end up with too many of them multiplying in one place (a tumor)
- In the case of aging, it’s the cellular equivalent of “a photocopy of a photocopy of a photocopy” gradually losing information as it goes
In both cases…
The cell must die if we want to live
Critically, and which quality differentiates it from a lot of other flavonoids, fisetin has the ability to selectively kill senescent cells.
To labor the photocopying metaphor, this means there’s an office worker whose job it is to say “this photocopy is barely legible, I’m going to toss this, and then copy directly from the clearest copy we have instead”, thus keeping the documents (your DNA) in pristine condition.
In fisetin’s case, this was first tested in mouse (in vivo) studies, and in human tissue (in vitro) studies, before moving to human clinical studies:
❝Of the 10 flavonoids tested, fisetin was the most potent senolytic.
The natural product fisetin has senotherapeutic activity in mice and in human tissues. Late life intervention was sufficient to yield a potent health benefit.❞
~ Dr. Matthew Yousefzadeh et al.
Read in full: Fisetin is a senotherapeutic that extends health and lifespan
There’s lots more science that’s been done to it since that first groundbreaking study though; here’s a more recent example:
Want some?
We don’t sell it, but here for your convenience is an example product on Amazon
Enjoy!
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What happens to your vagina as you age?
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The vagina is an internal organ with a complex ecosystem, influenced by circulating hormone levels which change during the menstrual cycle, pregnancy, breastfeeding and menopause.
Around and after menopause, there are normal changes in the growth and function of vaginal cells, as well as the vagina’s microbiome (groups of bacteria living in the vagina). Many women won’t notice these changes. They don’t usually cause symptoms or concern, but if they do, symptoms can usually be managed.
Here’s what happens to your vagina as you age, whether you notice or not.
Let’s clear up the terminology
We’re focusing on the vagina, the muscular tube that goes from the external genitalia (the vulva), past the cervix, to the womb (uterus). Sometimes the word “vagina” is used to include the external genitalia. However, these are different organs and play different roles in women’s health.
What happens to the vagina as you age?
Like many other organs in the body, the vagina is sensitive to female sex steroid hormones (hormones) that change around puberty, pregnancy and menopause.
Menopause is associated with a drop in circulating oestrogen concentrations and the hormone progesterone is no longer produced. The changes in hormones affect the vagina and its ecosystem. Effects may include:
- less vaginal secretions, potentially leading to dryness
- less growth of vagina surface cells resulting in a thinned lining
- alteration to the support structure (connective tissue) around the vagina leading to less elasticity and more narrowing
- fewer blood vessels around the vagina, which may explain less blood flow after menopause
- a shift in the type and balance of bacteria, which can change vaginal acidity, from more acidic to more alkaline.
What symptoms can I expect?
Many women do not notice any bothersome vaginal changes as they age. There’s also little evidence many of these changes cause vaginal symptoms. For example, there is no direct evidence these changes cause vaginal infection or bleeding in menopausal women.
Some women notice vaginal dryness after menopause, which may be linked to less vaginal secretions. This may lead to pain and discomfort during sex. But it’s not clear how much of this dryness is due to menopause, as younger women also commonly report it. In one study, 47% of sexually active postmenopausal women reported vaginal dryness, as did around 20% of premenopausal women.
Other organs close to the vagina, such as the bladder and urethra, are also affected by the change in hormone levels after menopause. Some women experience recurrent urinary tract infections, which may cause pain (including pain to the side of the body) and irritation. So their symptoms are in fact not coming from the vagina itself but relate to changes in the urinary tract.
Not everyone has the same experience
Women vary in whether they notice vaginal changes and whether they are bothered by these to the same extent. For example, women with vaginal dryness who are not sexually active may not notice the change in vaginal secretions after menopause. However, some women notice severe dryness that affects their daily function and activities.
In fact, researchers globally are taking more notice of women’s experiences of menopause to inform future research. This includes prioritising symptoms that matter to women the most, such as vaginal dryness, discomfort, irritation and pain during sex.
If symptoms bother you
Symptoms such as dryness, irritation, or pain during sex can usually be effectively managed. Lubricants may reduce pain during sex. Vaginal moisturisers may reduce dryness. Both are available over-the-counter at your local pharmacy.
While there are many small clinical trials of individual products, these studies lack the power to demonstrate if they are really effective in improving vaginal symptoms.
In contrast, there is robust evidence that vaginal oestrogen is effective in treating vaginal dryness and reducing pain during sex. It also reduces your chance of recurrent urinary tract infections. You can talk to your doctor about a prescription.
Vaginal oestrogen is usually inserted using an applicator, two to three times a week. Very little is absorbed into the blood stream, it is generally safe but longer-term trials are required to confirm safety in long-term use beyond a year.
Women with a history of breast cancer should see their oncologist to discuss using oestrogen as it may not be suitable for them.
Are there other treatments?
New treatments for vaginal dryness are under investigation. One avenue relates to our growing understanding of how the vaginal microbiome adapts and modifies around changes in circulating and local concentrations of hormones.
For example, a small number of reports show that combining vaginal probiotics with low-dose vaginal oestrogen can improve vaginal symptoms. But more evidence is needed before this is recommended.
Where to from here?
The normal ageing process, as well as menopause, both affect the vagina as we age.
Most women do not have troublesome vaginal symptoms during and after menopause, but for some, these may cause discomfort or distress.
While hormonal treatments such as vaginal oestrogen are available, there is a pressing need for more non-hormonal treatments.
Dr Sianan Healy, from Women’s Health Victoria, contributed to this article.
Louie Ye, Clinical Fellow, Department of Obstetrics and Gynecology, The University of Melbourne and Martha Hickey, Professor of Obstetrics and Gynaecology, The University of Melbourne
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Shame and blame can create barriers to vaccination
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Understanding the stigma surrounding infectious diseases like HIV and mpox may help community health workers break down barriers that hinder access to care.
Looking back in history can provide valuable lessons to confront stigma in health care today, especially toward Black, Latine, LGBTQ+, and other historically underserved communities disproportionately affected by COVID-19 and HIV.
Public Good News spoke with Sam Brown, HIV prevention and wellness program manager at Civic Heart, a community-based organization in Houston’s historic Third Ward, to understand the effects of stigma around sexual health and vaccine uptake.
Brown shared more about Civic Heart’s efforts to provide free confidential testing for sexually transmitted infections, counseling and referrals, and information about COVID-19, flu, and mpox vaccinations, as well as the lessons they’re learning as they strive for vaccine equity.
Here’s what Brown said.
[Editor’s note: This content has been edited for clarity and length.]
PGN: Some people on social media have spread the myth that vaccines cause AIDS or other immune deficiencies when the opposite is true: Vaccines strengthen our immune systems to help protect against disease. Despite being frequently debunked, how do false claims like these impact the communities you serve?
Sam Brown: Misinformation like that is so hard to combat. And it makes the work and the path to overall community health hard because people will believe it. In the work that we do, 80 percent of it is changing people’s perspective on something they thought they knew.
You know, people don’t even transmit AIDS. People transmit HIV. So, a vaccine causing immunodeficiency doesn’t make sense.
With the communities we serve, we might have a person that will believe the myth, and because they believe it, they won’t get vaccinated. Then later, they may test positive for COVID-19.
And depending on social determinants of health, it can impact them in a whole heap of ways: That person is now missing work, they’re not able to provide for their family—if they have a family. It’s this mindset that can impact a person’s life, their income, their ability to function.
So, to not take advantage of something like a vaccine that’s affordable, or free for the most part, just because of misinformation or a misunderstanding—that’s detrimental, you know.
For example, when we talk to people in the community, many don’t know that they can get mpox from their pet, or that it’s zoonotic—that means that it can be transferred between different species or different beings, from animals to people. I see a lot of surprise and shock [when people learn this].
It’s difficult because we have to fight the misinformation and the stigma that comes with it. And it can be a big barrier.
People misunderstand. [They] think that “this is something that gay people or the LGBTQ+ community get,” which is stigmatizing and comes off as blaming. And blaming is the thing that leads us to be misinformed.
PGN: In the last couple years, your organization’s HIV Wellness program has taken on promoting COVID-19, flu, and mpox vaccines to the communities you serve. How do you navigate conversations between sexual health and infectious diseases? Can you share more about your messaging strategies?
S.B.: As we promoted positive sexual health and HIV prevention, we saw people were tired of hearing about HIV. They were tired of hearing about how PrEP works, or how to prevent HIV.
But, when we had an outbreak of syphilis in Houston just last year, people were more inclined to test because of the severity of the outbreak.
So, what our team learned is that sometimes you have to change the message to get people what they need.
We changed our message to highlight more syphilis information and saw that we were able to get more people tested for HIV because we correlated how syphilis and HIV are connected and how a person can be susceptible to both.
Using messages that the community wants and pairing them with what the community needs has been better for us. And we see that same thing with COVID-19, the flu, and RSV. Sometimes you just can’t be married to a message. We’ve had to be flexible to meet our clients where they are to help them move from unsafe practices to practices that are healthy and good for them and their communities.
PGN: You’ve mentioned how hard it is to combat stigma in your work. How do you effectively address it when talking to people one-on-one?
S.B.: What I understand is that no one wants to feel shame. What I see people respond to is, “Here’s an opportunity to do something different. Maybe there was information that you didn’t know that caused you to make a bad decision. And now here’s an opportunity to gain information so that you can make a better decision.”
People want to do what they want to do; they want to live how they want to live. And we all should be able to do that as long as it’s not hurting anyone, but also being responsible enough to understand that, you know, COVID-19 is here.
So, instead of shaming and blaming, it’s best to make yourself aware and understand what it is and how to treat it. Because the real enemy is the virus—it’s the infection, not the people.
When we do our work, we want to make sure that we come from a strengths-based approach. We always look at what a client can do, what that client has. We want to make sure that we’re empowering them from that point. So, even if they choose not to prioritize our message right now, we can’t take that personally. We’ll just use it as a chance to try a new way of framing it to help people understand what we’re trying to say.
And sometimes that can be difficult, even for organizations. But getting past that difficulty comes with a greater opportunity to impact someone else.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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Peace Is Every Step – by Thích Nhất Hạnh
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Mindfulness is one of the few practices to make its way from religion (in this case, Buddhism) into hard science. We’ve written before about its many evidence-based benefits, and many national health information outlets recommend it. So, what does this book have to add?
Thích Nhất Hạnh spent most of his 95 years devoted to the practice and teaching of mindfulness and compassion. In this book, the focus is on bringing mindfulness off the meditation mat and into general life.
After all, what if we could extend that “unflappability” into situations that pressure and antagonize us? That would be some superpower!
The author offers techniques to do just that, simple exercises to transform negative emotions, and to make us more likely to remember to do so.
After all, “in the heat of the moment” is rarely when many of us are at our best, this book gives way to allow those moments themselves to serve as immediate triggers to be our best.
The title “Peace Is Every Step” is not a random collection of words; the goal of this book is to enable to reader to indeed carry peace with us as we go.
Not just “peace is always available to us”, but if we do it right: “we have now arranged for our own peace to automatically step in and help us when we need it most”.
Bottom line: if you’d like to practice mindfulness, or practice it more consistently, this book offers some powerful tools.
Click here to check out Peace Is Every Step, and carry yours with you!
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Why does alcohol make my poo go weird?
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As we enter the festive season it’s a good time to think about what all those celebratory alcoholic drinks can do to your gut.
Alcohol can interfere with the time it takes for food to go through your gut (also known as the “transit time”). In particular, it can affect the muscles of the stomach and the small bowel (also known as the small intestine).
So, how and why does alcohol make your poos goes weird? Here’s what you need to know.
Diarrhoea and the ‘transit time’
Alcohol’s effect on stomach transit time depends on the alcohol concentration.
In general, alcoholic beverages such as whisky and vodka with high alcohol concentrations (above 15%) slow down the movement of food in the stomach.
Beverages with comparatively low alcohol concentrations (such as wine and beer) speed up the movement of food in the stomach.
These changes in gut transit explain why some people can get a sensation of fullness and abdominal discomfort when they drink vodka or whisky.
How long someone has been drinking a lot of alcohol can affect small bowel transit.
We know from experiments with rats that chronic use of alcohol accelerates the transit of food through the stomach and small bowel.
This shortened transit time through the small bowel also happens when humans drink a lot of alcohol, and is linked to diarrhoea.
Alcohol can also reduce the absorption of carbohydrates, proteins and fats in the duodenum (the first part of the small bowel).
Alcohol can lead to reduced absorption of xylose (a type of sugar). This means diarrhoea is more likely to occur in drinkers who also consume a lot of sugary foods such as sweets and sweetened juices.
Chronic alcohol use is also linked to:
- lactose intolerance
- overgrowth of small bowel bacteria and
- reduced absorption of fats from the pancreas not producing enough digestive enzymes.
This means chronic alcohol use may lead to diarrhoea and loose stools.
How might a night of heavy drinking affect your poos?
When rats are exposed to high doses of alcohol over a short period of time, it results in small bowel transit delay.
This suggests acute alcohol intake (such as an episode of binge drinking) is more likely to lead to constipation than diarrhoea.
This is backed up by recent research studying the effects of alcohol in 507 university students.
These students had their stools collected and analysed, and were asked to fill out a stool form questionnaire known as the Bristol Stool Chart.
The research found a heavy drinking episode was associated with harder, firm bowel motions.
In particular, those who consumed more alcohol had more Type 1 stools, which are separate hard lumps that look or feel a bit like nuts.
The researchers believed this acute alcohol intake results in small bowel transit delay; the food stayed for longer in the intestines, meaning more water was absorbed from the stool back into the body. This led to drier, harder stools.
Interestingly, the researchers also found there was more of a type of bacteria known as “Actinobacteria” in heavy drinkers than in non-drinkers.
This suggests bacteria may have a role to play in stool consistency.
But binge drinking doesn’t always lead to constipation. Binge drinking in patients with irritable bowel syndrom (IBS), for example, clearly leads to diarrhoea, nausea and abdominal pain.
What can I do about all this?
If you’re suffering from unwanted bowel motion changes after drinking, the most effective way to address this is to limit your alcohol intake.
Some alcoholic beverages may affect your bowel motions more than others. If you notice a pattern of troubling poos after drinking certain drinks, it may be sensible to cut back on those beverages.
If you tend to get diarrhoea after drinking, avoid mixing alcohol with caffeinated drinks. Caffeine is known to stimulate contractions of the colon and so could worsen diarrhoea.
If constipation after drinking is the problem, then staying hydrated is important. Drinking plenty of water before drinking alcohol (and having water in between drinks and after the party is over) can help reduce dehydration and constipation.
You should also eat before drinking alcohol, particularly protein and fibre-rich foods.
Food in the stomach can slow the absorption of alcohol and may help protect against the negative effects of alcohol on the gut lining.
Is it anything to worry about?
Changes in bowel motions after drinking are usually short term and, for the most part, resolve themselves pretty efficiently.
But if symptoms such as diarrhoea persist beyond a couple of days after stopping alcohol, it may signify other concerning issues such as an underlying gut disorder like inflammatory bowel disease.
Researchers have also linked alcohol consumption to the development of irritable bowel syndrome.
If problems persist or if there are alarming symptoms such as blood in your stool, seek medical advice from a general practitioner.
Vincent Ho, Associate Professor and clinical academic gastroenterologist, Western Sydney University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Bare-Bones Truth About Osteoporosis
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In yesterday’s issue of 10almonds, we asked you “at what age do you think it’s important to start worrying about osteoporosis?”, and here’s the spread of answers you gave us:
The Bare-bones Truth About Osteoporosis
In yesterday’s issue of 10almonds, we asked you “at what age do you think it’s important to start worrying about osteoporosis?”, and here’s the spread of answers you gave us:
At first glance it may seem shocking that a majority of respondents to a poll in a health-focused newsletter think it’ll never be an issue worth worrying about, but in fact this is partly a statistical quirk, because the vote of the strongest “early prevention” crowd was divided between “as a child” and “as a young adult”.
This poll also gave you the option to add a comment with your vote. Many subscribers chose to do so, explaining your choices… But, interestingly, not one single person who voted for “never” had any additional thoughts to add.
We loved reading your replies, by the way, and wish we had room to include them here, because they were very interesting and thought-provoking.
Let’s get to the myths and facts:
Top myth: “you will never need to worry about it; drink a glass of milk and you’ll be fine!”
The body is constantly repairing itself. Its ability to do that declines with age. Until about 35 on average, we can replace bone mineral as quickly as it is lost. After that, we lose it by up to 1% per year, and that rate climbs after 50, and climbs even more steeply for those who go through (untreated) menopause.
Losing 1% per year might not seem like a lot, but if you want to live to 100, there are some unfortunate implications!
About that menopause, by the way… Because declining estrogen levels late in life contribute significantly to osteoporosis, hormone replacement therapy (HRT) may be of value to many for the sake of bone health, never mind the more obvious and commonly-sought benefits.
On the topic of that glass of milk…
- Milk is a great source of calcium, which is useless to the body if you don’t also have good levels of vitamin D and magnesium.
- People’s vitamin D levels tend to directly correlate to the level of sun where they live, if supplementation isn’t undertaken.
- Plant-based milks are usually fortified with vitamin D (and calcium), by the way.
- Most people are deficient in magnesium, because green leafy things don’t form as big a part of most people’s diets as they should.
See also: An update on magnesium and bone health
Next most common myth: “bone health is all about calcium”
We spoke a little above about the importance of vitamin D and magnesium for being able to properly use that. But potassium is also critical:
Read more: The effects of potassium on bone health
While we’re on the topic…
People think of collagen as being for skin health. And it is important for that, but collagen’s benefits (and the negative effects of its absence) go much deeper, to include bone health. We’ve written about this before, so rather than take more space today, we’ll just drop the link:
We Are Such Stuff As Fish Are Made Of
Want to really maximize your bone health?
You might want to check out this well-sourced LiveStrong article:
Bone Health: Best and Worst Foods
(Teaser: leafy greens are in 2nd place, topped by sardines at #1—where do you think milk ranks?)
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