The Meds That Impair Decision-Making

10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

Impairment to cognitive function is often comorbid with Parkinson’s disease. That is to say: it’s not a symptom of Parkinson’s, but it often occurs in the same people. This may seem natural: after all, both are strongly associated with aging.

However, recent (last month, at time of writing) research has brought to light a very specific way in which medication for Parkinson’s may impair the ability to make sound decisions.

Obviously, this is a big deal, because it can affect healthcare decisions, financial decisions, and more—greatly impacting quality of life.

See also: Age-related differences in financial decision-making and social influence

(in which older people were found more likely to be influenced by the impulsive financial preferences of others than their younger counterparts, when other factors are controlled for)

As for how this pans out when it comes to Parkinson’s meds…

Pramipexole (PPX)

This drug can, due to an overlap in molecular shape, mimic dopamine in the brains of people who don’t have enough—such as those with Parkinson’s disease. This (as you might expect) helps alleviate Parkinson’s symptoms.

However, researchers found that mice treated with PPX and given a touch-screen based gambling game picked the high-risk, high reward option much more often. In the hopes of winning strawberry milkshake (the reward), they got themselves subjected to a lot of blindingly-bright flashing lights (the risk, to which untreated mice were much more averse, as this is very stressful for a mouse).

You may be wondering: did the mice have Parkinson’s?

The answer: kind of; they had been subjected to injections with 6-hydroxydopamine, which damages dopamine-producing neurons similarly to Parkinson’s.

This result was somewhat surprising, because one would expect that a mouse whose depleted dopamine was being mimicked by a stand-in (thus, doing much of the job of dopamine) would be less swayed by the allure of gambling (a high-dopamine activity), since gambling is typically most attractive to those who are desperate to find a crumb of dopamine somewhere.

They did find out why this happened, by the way, the PPX hyperactivated the external globus pallidus (also called GPe, and notwithstanding the name, this is located deep inside the brain). Chemically inhibiting this area of the brain reduced the risk-taking activity of the mice.

This has important implications for Parkinson’s patients, because:

  • on an individual level, it means this is a side effect of PPX to be aware of
  • on a research-and-development level, it means drugs need to be developed that specifically target the GPe, to avoid/mitigate this side effect.

You can read the study in full here:

Pramipexole Hyperactivates the External Globus Pallidus and Impairs Decision-Making in a Mouse Model of Parkinson’s Disease

Don’t want to get Parkinson’s in the first place?

While nothing is a magic bullet, there are things that can greatly increase or decrease Parkinson’s risk. Here’s a big one, as found recently (last week, at the time of writing):

Air Pollution and Parkinson’s Disease in a Population-Based Study

Also: knowing about its onset sooner rather than later is scary, but beneficial. So, with that in mind…

Recognize The Early Symptoms Of Parkinson’s Disease

Finally, because Parkinson’s disease is theorized to be caused by a dysfunction of alpha-synuclein clearance (much like the dysfunction of beta-amyloid clearance, in the case of Alzheimer’s disease), this means that having a healthy glymphatic system (glial cells doing the same clean-up job as the lymphatic system, but in the brain) is critical:

How To Clean Your Brain (Glymphatic Health Primer)

Take care!

Don’t Forget…

Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

Recommended

  • Why it’s a bad idea to mix alcohol with some medications
  • Feel Better In 5 – by Dr. Rangan Chatterjee
    Dive into Dr. Chatterjee’s “Feel Better In 5,” where you’ll transform your health with three 5-minute lifestyle interventions a day, and experience the compounding benefits!

Learn to Age Gracefully

Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Non-Alcohol Mouthwash vs Alcohol Mouthwash – Which is Healthier?

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Our Verdict

    When comparing non-alcohol mouthwash to alcohol mouthwash, we picked the alcohol.

    Why?

    Note: this is a contingent choice and is applicable to most, but not all, people.

    In short, there has been some concern about alcohol mouthwashes increasing cancer risk, but research has shown this is only the case if you already have an increased risk of oral cancer (for example if you smoke, and/or have had an oral cancer before).

    For those for whom this is not the case (for example, if you don’t smoke, and/or have no such cancer history), then best science currently shows that alcohol mouthwash does not cause any increased risk.

    What about non-alcohol mouthwashes? Well, they have a different problem; they usually use chlorine-based chemicals like chlorhexidine or cetylpyridinium chloride, which are (exactly as the label promises) exceptionally good at killing oral bacteria.

    (They’d kill us too, at higher doses, hence: swill and spit)

    Unfortunately, much like the rest of our body, our mouth is supposed to have bacteria there and bad things happen when it doesn’t. In the case of our oral microbiome, cleaning it with such powerful antibacterial agents can kill our “good” bacteria along with the bad, which lowers the pH of our saliva (that’s bad; it means it is more acidic), and thus indirectly erodes tooth enamel.

    You can read more about the science of all of the above (with references), here:

    Toothpastes & Mouthwashes: Which Help And Which Harm?

    Summary:

    For most people, alcohol mouthwashes are a good way to avoid the damage that can be done by chlorhexidine in non-alcohol mouthwashes.

    Here are some examples, but there will be plenty in your local supermarket:

    Non-Alcohol, by Colgate | Alcohol, by Listerine

    If you have had oral cancer, or if you smoke, then you may want to seek a third alternative (and also, please, stop smoking if you can).

    Or, really, most people could probably skip mouthwashes, if you’ve good oral care already by other means. See also:

    Toothpastes & Mouthwashes: Which Help And Which Harm?

    (yes, it’s the same link as before, but we’re now drawing your attention to the fact it has information about toothpastes too)

    If you do want other options though, might want to check out:

    Less Common Oral Hygiene Options ← miswak sticks are especially effective

    Take care!

    Share This Post

  • Fast Exercise – by Dr. Michael Mosley & Peta Bee

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    We’ve written before about the benefits of High-Intensity Interval Training (HIIT), but there’s more to say than we can fit in a short article!

    Dr. Michael Mosley, who hates exercise but knows his stuff when it comes to the benefits, teamed up with Peta Bee, who loves exercise and is a science journalist with degrees in sports science and nutrition, to bring us this book.

    In it, we learn a lot about:

    • the science of HIIT
    • what makes it so different from most kinds of exercise
    • exactly what benefits one can expect

    …in a very detailed clinical fashion (while still remaining very readable).

    By “very detailed clinical fashion”, here we mean “one minute of this kind of exercise this many times per week over this period of time will give this many extra healthy life-years”, for example, along with lots of research to back numbers, and explanations of the mechanisms of action (e.g. reducing inflammatory biomarkers of aging, increasing cellular apoptosis, improving cardiometabolic stats for reduced CVD risk, and many things)

    There’s also time/space given over to exactly what to do and how to do it, giving enough options to suit personal tastes/circumstances.

    Bottom line: if you’d like to make your exercise work a lot harder for you while you spend a lot less time working out, then this book will help you do just that!

    Click here to check out Fast Exercise, and enjoy the benefits!

    Share This Post

  • Delicious Daily Daal

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    You’re not obliged to eat this every day, but you might want to. The reason we called this one this, is because it’s a super simple recipe (don’t be put off by the long ingredients list; it’s mostly spices making it look long) which, after you’ve done it a couple of times, you could practically do it in your sleep quickly and easily.

    The name “lentil daal” is a bit like “naan bread”—a redundant tautology repeated more than once unnecessarily, but it helps for international clarity. The dish is usually served with naan, by the way, and rice. We don’t have room for those today, maybe we’ll do them another day; for now, you can just cook rice how you normally do, and buy naan if necessary.

    Writer’s note: I love strong flavors; many people don’t. For this reason I’m going to give a “basic” version. Please feel free to multiply the spices if you feel so inclined. Where I give “one teaspoon” of a spice below, I’d use a tablespoon at home. Chili peppers can vary in heat a lot even within the same type, so what I do for any given batch is taste one (raw), judge the heat, and use an appropriate number of peppers accordingly. If you don’t want to do that, I suggest just guessing low (as per the instructions below) and if you find at the end you want more heat, you can always stir in a little hot sauce. I know that sounds heretical, but at the end of the day, the primary goal of cooking is to have the meal you want at the end of it.

    You will need

    • 1 1/2 cups red lentils
    • 1 large onion, chopped
    • 1 large bulb garlic, minced
    • 1 oz ginger, grated
    • 2 hot peppers (e.g. serrano), chopped
    • 1 tsp ground cumin
    • 1 tsp ground coriander
    • 1 tsp ground turmeric
    • 1 tsp garam masala (this is also ground, but it doesn’t come any other way)
    • 1 tsp chili flakes (omit if you’re not a fan of heat)
    • 2 tsp cracked black pepper
    • 1 tsp salt ← I wouldn’t recommend multiplying this one unless later, to taste. In fact, instead of 1 tsp salt I use 2 tsp MSG, which has less sodium than 1 tsp salt. But “1 tsp salt” is the “easy to find in the store” version.
    • 2 large or 3 small tomatoes, chopped (or 1 can chopped tomatoes)
    • 2 shallots, thinly sliced
    • 1 tsp cumin seeds
    • 1 tsp mustard seeds
    • 1 tsp coriander seeds
    • 1 tsp black peppercorns
    • 1 lime
    • 1/2 cup fresh cilantro, or if you have the “that tastes like soap” gene, parsley, chopped
    • Coconut oil for cooking (if you don’t like coconut, consider springing for avocado oil—if you use olive oil, it’ll add an olivey taste which changes the dish a lot; not inherently bad, but it feels a lot less like traditional daal; seed oils are less healthy and we don’t recommend them; ghee is a traditional option and not bad in moderation, but not as healthy as the oils we mentioned first)
    • Water for cooking the lentils

    Method

    (we suggest you read everything at least once before doing anything)

    1) In a saucepan, boil water and add the lentils; let them simmer while doing the next things.

    2) Sauté the onions until translucent. This should only take a few minutes.

    3) Add the garlic, ginger, and hot peppers, and keep stirring for another couple of minutes.

    4) Add the ground spices (cumin, coriander, turmeric, garam masala) chili flakes, and cracked black pepper, as well as the salt or MSG if using (not both), and stir them in quickly but thoroughly.

    For the next step, you may need to transfer to larger pan if your sauté pan isn’t big enough to take the volume; if so, that’s fine, the sauté has done its job and can have a rest now. If your sauté pan is big enough, just carry on in the same pan; this is perfect.

    5) Add the lentils with the water you cooked them in (there might not be much water left now, as the lentils will have absorbed a lot of it; this is fine) as well as the chopped tomatoes.

    6) Simmer until it has the consistency of a very thick sauce (you can add a splash more water here and there if it seems to need more). In the West it’s common to serve lentils “al dente”, but in the East it’s usual to (for dishes like this) cook them until they start to

    7) Add the juice of at least 1/2 of your lime, or the whole lime if you feel so inclined.

    8) In a pre-heated skillet, flash-fry the sliced shallots and the seeds (cumin, coriander, mustard, black peppercorns) at the hottest temperature you can muster. Don’t worry if the oil smokes; we’re only going to be at this tadka-making stage for a moment and nothing will stick provided you keep it moving. When the seeds start popping, it’s ready. Add it all to the big pan and stir in.

    9) Add the cilantro-or-parsley garnish once you’re ready to serve.

    Enjoy!

    Learn more

    For those interested in some of the science of what we have going on today:

    Take care!

    Share This Post

Related Posts

  • Why it’s a bad idea to mix alcohol with some medications
  • Savor: Mindful Eating, Mindful Life – by Thich Nhat Hanh and Dr. Lilian Cheung

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    We’ve talked about mindful eating before at 10almonds, so here’s a book about it. You may wonder how much there is to say!

    As it happens, there’s quite a bit. The authors, a Buddhist monk (Hanh) and a Harvard nutritionist (Dr. Cheung) explore the role of mindful eating in our life.

    There is an expectation that we the reader want to lose weight. If we don’t, those parts of the book will be a “miss” for us, but still contain plenty of other value.

    Most of the same advices can be applied equally to other aspects of health, in any case. A lot of that comes from the book’s Buddhist principles, including the notion that:

    1. We are experiencing suffering
    2. Suffering has a cause
    3. What has a cause can have an end
    4. The way to this end is mindfulness

    As such, the process itself is also mindfulness all the way through:

    1. To be mindful of our suffering (and not let it become background noise to be ignored)
    2. To be mindful of the cause of our suffering (rather than dismissing it as just how things are)
    3. To be mindful of how to address that, and thus end the suffering (rather than despairing in inaction)
    4. To engage mindfully in the process of doing so (and thus not fall into the trap of thinking “job done”)

    And, as for Dr. Cheung? She also has input throughout, with practical advice about the more scientific side of rethinking one’s diet.

    Bottom line: this is an atypical book, and/but perhaps an important one. Certainly, at the very least it may be one to try if more conventional approaches have failed!

    Click here to check out “Savor” on Amazon today, and get mindful!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Tight Hamstrings? Here’s A Test To Know If It’s Actually Your Sciatic Nerve

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    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!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Feminist narratives are being hijacked to market medical tests not backed by evidence

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Corporations have used feminist language to promote their products for decades. In the 1980s, companies co-opted messaging about female autonomy to encourage women’s consumption of unhealthy commodities, such as tobacco and alcohol.

    Today, feminist narratives around empowerment and women’s rights are being co-opted to market interventions that are not backed by evidence across many areas of women’s health. This includes by commercial companies, industry, mass media and well-intentioned advocacy groups.

    Some of these health technologies, tests and treatments are useful in certain situations and can be very beneficial to some women.

    However, promoting them to a large group of asymptomatic healthy women that are unlikely to benefit, or without being transparent about the limitations, runs the risk of causing more harm than good. This includes inappropriate medicalisation, overdiagnosis and overtreatment.

    In our analysis published today in the BMJ, we examine this phenomenon in two current examples: the anti-mullerian hormone (AMH) test and breast density notification.

    The AMH test

    The AMH test is a blood test associated with the number of eggs in a woman’s ovaries and is sometimes referred to as the “egg timer” test.

    Although often used in fertility treatment, the AMH test cannot reliably predict the likelihood of pregnancy, timing to pregnancy or specific age of menopause. The American College of Obstetricians and Gynaecologists therefore strongly discourages testing for women not seeking fertility treatment.

    Woman sits in a medical waiting room
    The AMH test can’t predict your chance of getting pregnant.
    Anastasia Vityukova/Unsplash

    Despite this, several fertility clinics and online companies market the AMH test to women not even trying to get pregnant. Some use feminist rhetoric promising empowerment, selling the test as a way to gain personalised insights into your fertility. For example, “you deserve to know your reproductive potential”, “be proactive about your fertility” and “knowing your numbers will empower you to make the best decisions when family planning”.

    The use of feminist marketing makes these companies appear socially progressive and champions of female health. But they are selling a test that has no proven benefit outside of IVF and cannot inform women about their current or future fertility.

    Our recent study found around 30% of women having an AMH test in Australia may be having it for these reasons.

    Misleading women to believe that the test can reliably predict fertility can create a false sense of security about delaying pregnancy. It can also create unnecessary anxiety, pressure to freeze eggs, conceive earlier than desired, or start fertility treatment when it may not be needed.

    While some companies mention the test’s limitations if you read on, they are glossed over and contradicted by the calls to be proactive and messages of empowerment.

    Breast density notification

    Breast density is one of several independent risk factors for breast cancer. It’s also harder to see cancer on a mammogram image of breasts with high amounts of dense tissue than breasts with a greater proportion of fatty tissue.

    While estimates vary, approximately 25–50% of women in the breast screening population have dense breasts.

    Young woman has mammogram
    Dense breasts can make it harder to detect cancer.
    Tyler Olsen/Shutterstock

    Stemming from valid concerns about the increased risk of cancer, advocacy efforts have used feminist language around women’s right to know such as “women need to know the truth” and “women can handle the truth” to argue for widespread breast density notification.

    However, this simplistic messaging overlooks that this is a complex issue and that more data is still needed on whether the benefits of notifying and providing additional screening or tests to women with dense breasts outweigh the harms.

    Additional tests (ultrasound or MRI) are now being recommended for women with dense breasts as they have the ability to detect more cancer. Yet, there is no or little mention of the lack of robust evidence showing that it prevents breast cancer deaths. These extra tests also have out-of-pocket costs and high rates of false-positive results.

    Large international advocacy groups are also sponsored by companies that will financially benefit from women being notified.

    While stronger patient autonomy is vital, campaigning for breast density notification without stating the limitations or unclear evidence of benefit may go against the empowerment being sought.

    Ensuring feminism isn’t hijacked

    Increased awareness and advocacy in women’s health are key to overcoming sex inequalities in health care.

    But we need to ensure the goals of feminist health advocacy aren’t undermined through commercially driven use of feminist language pushing care that isn’t based on evidence. This includes more transparency about the risks and uncertainties of health technologies, tests and treatments and greater scrutiny of conflicts of interests.

    Health professionals and governments must also ensure that easily understood, balanced information based on high quality scientific evidence is available. This will enable women to make more informed decisions about their health.The Conversation

    Brooke Nickel, NHMRC Emerging Leader Research Fellow, University of Sydney and Tessa Copp, NHMRC Emerging Leader Research Fellow, University of Sydney

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails: