This Week In Brain News
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While reading this week’s health news, we’ve singled out three brain-related articles to feature here:
Bad breath now, bad brain later?
Researchers found links between oral microbiome populations, and changes in brain function with aging. The short version is indeed “bad breath now = bad brain later”, but more specifically:
- People who had large numbers of the bacteria groups Neisseria and Haemophilus had better memory, attention and ability to do complex tasks
- People who had higher levels of Porphyromonas had more memory problems later
- People with a lot of Prevotella tended to predict poorer brain health and was more common in people who carry the Alzheimer’s Disease risk gene, APOE4.
If you’ve never heard of half of those, don’t worry: mostly your oral microbiome can take care of itself, provide you consistently do the things that create a “good” oral microbiome. So, see our “related” link below:
Read in full: Mouth bacteria may hold insight into your future brain function
Related: Improve Your Oral Microbiome
Weeding out a major cause of cognitive decline
Cannabis may be great for relaxation, but regular use is not great for mental sharpness, and recent use (even if not regular, and even if currently sober) shows a similar dip in cognitive abilities, especially working memory. In other words, cannabis use for relaxation should be at most an occasional thing, rather than an everyday thing.
While the results of the study are probably not shocking, something that we found interesting was their classification system:
❝Heavy users are considered young adults who’ve used cannabis more than 1000 times over their lifetime. Whereas, using 10 to 999 times was considered a moderate user, and fewer than 10 times was considered a non-user.❞
Which—while being descriptive rather than prescriptive in nature—suggests that, to be on the healthy end of the bell curve, an occasional cannabis-user might want to consider “if you have 999 uses before you hit the “heavy user” category, project those 999 uses against your life expectancy, and moderate your use accordingly”. In other words, a person just now starting use, who expects to live another 40 years, would calculate: 999/40 = 24.9 uses per year, so call it 2 per month. A person who only expects to live another 20 years, would do the same math and arrive at 4 per month.
Disclaimer: the above is intended as an interesting reframe, and a way of looking at long-term cannabis use while being mindful of the risks. It is not intended as advice. This health-conscious writer personally has no intention of using at all, unless perhaps in some bad future scenario in which I have bad chronic pain, I might consider that pain relief effects may be worth the downsides. Or I might not; I hope not to be in the situation to find out!
Read in full: Largest study ever done on cannabis and brain function finds impact on working memory
Related: Cannabis Myths vs Reality
Mind-reading technology improves again
We’ve come quite a way from simple 1/0 reads, and basic cursor control! Now, researchers have created a brain decode that can translate a person’s thoughts into continuous text, without requiring the person to focus on words—in other words, it verbalizes the ideas directly. Most recently, the latest upgrade means that while previously, the device had to be trained on an individual brain for many hours, now the training/calibration process takes only an hour:
Read in full: Improved brain decoder holds promise for communication in people with aphasia
Related: Are Brain Chips Safe?
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Figs vs Passion Fruit – Which is Healthier?
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Our Verdict
When comparing figs to passion fruit, we picked the passion fruit.
Why?
Both are top-tier fruits! But the passion fruit is just that bit more passionate about delivering healthy nutrients:
In terms of macros, passion fruit has slightly more carbs, notably more protein, and a lot more fiber, giving it the win in this category.
In the category of vitamins, figs have more of vitamins B1, B5, B6, E, and K, while passion fruit has more of vitamins A, B2, B3, B9, C, and choline, making for a marginal win by the numbers for passion fruit here.
When it comes to minerals, figs have more calcium, manganese, and zinc, while passion fruit has more copper, iron, magnesium, phosphorus, potassium, and selenium. A clearer win for passion fruit this time.
Adding up the sections makes for an easy overall win for passion fruit, but again, figs are really a top-tier fruit too; passion fruit just beats them! By all means enjoy either or both; diversity is good!
Want to learn more?
You might like:
Top 8 Fruits That Prevent & Kill Cancer ← figs have antitumor effects specifically, while removing carcinogens too, and additionally sensitizing cancer cells to light therapy
Enjoy!
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For many who are suffering with prolonged grief, the holidays can be a time to reflect and find meaning in loss
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The holiday season is meant to be filled with joy, connection and celebration of rituals. Many people, however, are starkly reminded of their grief this time of year and of whom – or what – they have lost.
The added stress of the holiday season doesn’t help. Studies show that the holidays negatively affect many people’s mental health.
While COVID-19-related stressors may have lessened, the grief from change and loss that so many endured during the pandemic persists. This can cause difficult emotions to resurface when they are least expected.
I am a licensed therapist and trauma-sensitive yoga instructor. For the last 12 years, I’ve helped clients and families manage grief, depression, anxiety and complex trauma. This includes many health care workers and first responders who have recounted endless stories to me about how the pandemic increased burnout and affected their mental health and quality of life.
I developed an online program that research shows has improved their well-being. And I’ve observed firsthand how much grief and sadness can intensify during the holidays.
Post-pandemic holidays and prolonged grief
During the pandemic, family dynamics, close relationships and social connections were strained, mental health problems increased or worsened, and most people’s holiday traditions and routines were upended.
Those who lost a loved one during the pandemic may not have been able to practice rituals such as holding a memorial service, further delaying the grieving process. As a result, holiday traditions may feel more painful now for some. Time off from school or work can also trigger more intense feelings of grief and contribute to feelings of loneliness, isolation or depression.
Sometimes feelings of grief are so persistent and severe that they interfere with daily life. For the past several decades, researchers and clinicians have been grappling with how to clearly define and treat complicated grief that does not abate over time.
In March 2022, a new entry to describe complicated grief was added to the Diagnostic and Statistical Manual of Mental Disorders, or DSM, which classifies a spectrum of mental health disorders and problems to better understand people’s symptoms and experiences in order to treat them.
This newly defined condition is called prolonged grief disorder. About 10% of bereaved adults are at risk, and those rates appear to have increased in the aftermath of the pandemic.
People with prolonged grief disorder experience intense emotions, longing for the deceased, or troublesome preoccupation with memories of their loved one. Some also find it difficult to reengage socially and may feel emotionally numb. They commonly avoid reminders of their loved one and may experience a loss of identity and feel bleak about their future. These symptoms persist nearly every day for at least a month. Prolonged grief disorder can be diagnosed at least one year after a significant loss for adults and at least six months after a loss for children.
I am no stranger to complicated grief: A close friend of mine died by suicide when I was in college, and I was one of the last people he spoke to before he ended his life. This upended my sense of predictability and control in my life and left me untangling the many existential themes that suicide loss survivors often face.
How grieving alters brain chemistry
Research suggests that grief not only has negative consequences for a person’s physical health, but for brain chemistry too.
The feeling of grief and intense yearning may disrupt the neural reward systems in the brain. When bereaved individuals seek connection to their lost loved one, they are craving the chemical reward they felt before their loss when they connected with that person. These reward-seeking behaviors tend to operate on a feedback loop, functioning similar to substance addiction, and could be why some people get stuck in the despair of their grief.
One study showed an increased activation of the amygdala when showing death-related images to people who are dealing with complicated grief, compared to adults who are not grieving a loss. The amygdala, which initiates our fight or flight response for survival, is also associated with managing distress when separated from a loved one. These changes in the brain might explain the great impact prolonged grief has on someone’s life and their ability to function.
Recognizing prolonged grief disorder
Experts have developed scales to help measure symptoms of prolonged grief disorder. If you identify with some of these signs for at least one year, it may be time to reach out to a mental health professional.
Grief is not linear and doesn’t follow a timeline. It is a dynamic, evolving process that is different for everyone. There is no wrong way to grieve, so be compassionate to yourself and don’t make judgments on what you should or shouldn’t be doing.
Increasing your social supports and engaging in meaningful activities are important first steps. It is critical to address any preexisting or co-occurring mental health concerns such as anxiety, depression or post-traumatic stress.
It can be easy to confuse grief with depression, as some symptoms do overlap, but there are critical differences.
If you are experiencing symptoms of depression for longer than a few weeks and it is affecting your everyday life, work and relationships, it may be time to talk with your primary care doctor or therapist.
A sixth stage of grief
I have found that naming the stage of grief that someone is experiencing helps diminish the power it might have over them, allowing them to mourn their loss.
For decades, most clinicians and researchers have recognized five stages of grief: denial/shock, anger, depression, bargaining and acceptance.
But “accepting” your grief doesn’t sit well for many. That is why a sixth stage of grief, called “finding meaning,” adds another perspective. Honoring a loss by reflecting on its meaning and the weight of its impact can help people discover ways to move forward. Recognizing how one’s life and identity are different while making space for your grief during the holidays might be one way to soften the despair.
When my friend died by suicide, I found a deeper appreciation for what he brought into my life, soaking up the moments he would have enjoyed, in honor of him. After many years, I was able to find meaning by spreading mental health awareness. I spoke as an expert presenter for suicide prevention organizations, wrote about suicide loss and became certified to teach my local community how to respond to someone experiencing signs of mental health distress or crisis through Mental Health First Aid courses. Finding meaning is different for everyone, though.
Sometimes, adding a routine or holiday tradition can ease the pain and allow a new version of life, while still remembering your loved one. Take out that old recipe or visit your favorite restaurant you enjoyed together. You can choose to stay open to what life has to offer, while grieving and honoring your loss. This may offer new meaning to what – and who – is around you.
If you need emotional support or are in a mental health crisis, dial 988 or chat online with a crisis counselor.
Mandy Doria, Assistant Professor of Psychiatry, University of Colorado Anschutz Medical Campus
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Cranberries vs Goji Berries – Which is Healthier?
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Our Verdict
When comparing cranberries to goji berries, we picked the cranberries.
Why?
Both are great! And your priorities may differ. Here’s how they stack up:
In terms of macros, goji berries have more protein, carbs, and fiber. This is consistent with them generally being eaten very dried, whereas cranberries are more often eaten fresh or from frozen, or partially rehydrated. In any case, goji berries are the “more food per food” option, so it wins this category. The glycemic indices are both low, by the way, though goji berries are the lower.
When it comes to vitamins, cranberries have more of vitamins B1, B2, B3, B5, B6, B9, E, K, and choline, while goji berries have more of vitamins A and C. Admittedly it’s a lot more, but still, on strength of overall vitamin coverage, the clear winner here is cranberries.
We see a similar story when it comes to minerals: cranberries have more copper, magnesium, manganese, phosphorus, potassium, selenium, and zinc, while goji berries have (a lot) more calcium and iron. Again, by strength of overall mineral coverage, the clear winner here is cranberries.
Cranberries do also have some extra phytochemical benefits, including their prevention/cure status when it comes to UTIs—see our link below for more on that.
At any rate, enjoy either or both, but those are the strengths and weaknesses of these two berries!
Want to learn more?
You might like to read:
- Health Benefits Of Cranberries (But: You’d Better Watch Out)
- Goji Berries: Which Benefits Do They Really Have?
- The Sugary Food That Lowers Blood Sugars ← this is also about goji berries
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Tight Hamstrings? Here’s A Test To Know If It’s Actually Your Sciatic Nerve
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Tight hamstrings are often not actually due to hamstring issues, but rather, are often being limited by the sciatic nerve. This video offers a home test to determine if the sciatic nerve is causing mobility problems (and how to improve it, if so):
The Connection
Try this test:
- Sit down with a slumped posture.
- Extend one leg with the ankle flexed.
- Note any stretching or pulling sensation behind the knee or in the calf.
- Bring your head down to your chest
If this increases the sensation, it likely indicates sciatic nerve involvement.
If only the hamstrings are tight, head movement won’t change the stretch sensation.
This is because the nervous system is a continuous structure, so head movement can affect nerve tension throughout the body. While this can cause problems, it can also be integral in the solution. Here are two ways:
- Flossing method: sit with “poor” slumped posture, extend the knee, keep the ankle flexed, and lift the head to relieve nerve tension. This movement helps the sciatic nerve slide without stretching it.
- Even easier method: lie on your back, grab behind the knee, and extend the leg while extending the neck. This position avoids compression in the gluteal area, making it suitable for severely compromised nerves. Perform the movement without significant stretching or pain.
In both cases: move gently to avoid straining the nerve, which can worsen muscle tension. Do 10 repetitions per leg, multiple times a day; after a week, increase to 20 reps.
A word of caution: speak with your doctor before trying these exercises if you have underlying neurological diseases, cut or infected nerves, or other severe conditions.
For more on all of this, plus visual demonstrations, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Exercises for Sciatica Pain Relief
Take care!
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Cleaning Up Your Mental Mess – by Dr. Caroline Leaf
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First of all, what mental mess is this? Well, that depends on you, but common items include:
- Anxiety
- Depression
- Stress
- Trauma
Dr. Caroline Leaf also includes the more nebulous item “toxic thoughts”, but this is mostly a catch-all term.
Given that it says “5 simple scientifically proven steps”, it would be fair if you are wondering:
“Is this going to be just basic CBT stuff?”
And… First, let’s not knock basic CBT stuff. It’s not a panacea, but it’s a great tool for a lot of things. However… Also, no, this book is not about just basic CBT stuff.
In fact, this book’s methods are presented in such a novel way that this reviewer was taken aback by how unlike it was to anything she’d read before.
And, it’s not that the components themselves are new—it’s just that they’re put together differently, in a much more organized comprehensive and systematic way, so that a lot less stuff falls through the cracks (a common problem with standalone psychological tools and techniques).
Bottom line: if you buy one mental health self-help book this year, we recommend that it be this one
Click here to check out Cleaning Up Your Mental Mess, and take a load off your mind!
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Why Do We Have Pores, And Could We Not?
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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
❝Do we really need pores, and why are they bigger on the face?❞
Pores secrete sweat or sebum (there are different kinds of pores for each).
If we didn’t have sweat pores, we’d be unable to sweat, which superficially may seem like a bonus, but it’d make us prone to overheating (like dogs, pigs, and other mammals that cannot sweat).
If we didn’t have sebum pores (usually called hair follicles, which are supplied by a sebaceous gland), we’d be completely hairless, and also unable to supply our skin with natural oils that keep it healthy. So we’d have no hair and very unhappy skin.
Which is ironic, because to believe beauty magazines, we must at all costs minimize our pores (and indeed, interventions like botox* can kill them).
*Let’s give that its full name though:
Suffice it to say, we do not recommend getting injected with neurotoxins unless it is truly necessary to ward off a greater harm.
As for being bigger on the face, they need not be, but sebaceous glands are more active and numerous there, being most active and numerous in the face/forehead—which is why oily skin is more likely to appear there than other parts of the body.
If your facial sebaceous glands are too active for your liking…
…there are ways to reduce that, a simple and relatively gentle way (relative, for example, botox) is with retinoids, including retinols or retinoic acids. Here’s some of the science of that; the paper is about treating acne, but the mechanism of action is the same (down-regulating the sebaceous glands’ action):
The potential side-effects, however were noted as:
- Cheilitis
- Desquamation of the skin
- Pruritus
Which, in translation from sciencese, means:
- Chapped lips
- Flaky skin
- Itchiness
Which aren’t necessarily fun, which is why with retinoids are best taken in very small doses at first to see how your skin reacts.
Remember when we said what your skin would be like without pores? This is what would happen, only much worse.
Take care!
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