Ridged Nails: What Are They Telling You?

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Dr. Yaseen Arsalan, a Doctor of Pharmacy, has advice on the “nutraceutical” side of things:

Onychorrhexis

Sounds like the name of a dinosaur, but it’s actually the condition that creates the vertical ridges that sometimes appear on nails. It’s especially likely in the case of thinner nails, and/or certain nutritional deficiencies. Overuse of certain chemicals (including nail polish remover, hair products that get on your hands a lot, and cleaning fluids) can also cause it. It can also be worsened by various conditions, including eczema, psoriasis, hypothyroidism, anemia, and amyloidosis, but it won’t usually be outright caused by those alone.

There are two main kinds of ridges on nails:

  • Vertical ridges: associated with hypothyroidism, anemia, and aging. Often an indicator of low iron.
  • Horizontal ridges (Beau’s lines): caused by interrupted nail growth, brute force trauma, chemotherapy, acrylic nails, and gel nail polishes. Can also be an indicator of low zinc.

There are an assortment of medical treatments available, which Dr. Arsalan discusses in the video, but for home remedy treatment, he recommends:

  • Nail-strengthening creams (look for coconut oil, shea butter, beeswax, vitamin E)
  • Hydration (this is about overall hydration e.g. water intake)
  • Careful nail trimming (fingernails with a curved shape and toenails straight across)
  • Nail ridge filler (he recommends the brand Barrielle, for not containing formaldehyde or formalin)
  • Moisturization (with cuticle oil or hand creams, because that hydration we talked about earlier is important, and we want it to stay inside the nail)

For more on those things, plus the medical treatments plus other “how to avoid this” measures, enjoy:

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  • ADHD… As An Adult?

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    ADHD—not just for kids!

    Consider the following:

    • If a kid has consistent problems paying attention, it’s easy and common to say “Aha, ADHD!”
    • If a young adult has consistent problems paying attention, it’s easy and common to say “Aha, a disinterested ne’er-do-well!”
    • If an older adult has consistent problems paying attention, it’s easy and common to say “Aha, a senior moment!”

    Yet, if we recognize that ADHD is fundamentally a brain difference in children (and we do; there are physiological characteristics that we can test), and we can recognize that as people get older our brains typically have less neuroplasticity (ability to change) than when we are younger rather than less, then… Surely, there are just as many adults with ADHD as kids!

    After all, that rather goes with the linear nature of time and the progressive nature of getting older.

    So why do kids get diagnoses so much more often than adults?

    Parents—and schools—can find children’s ADHD challenging, and it’s their problem, so they look for an explanation, and ADHD isn’t too difficult to find as a diagnosis.

    Meanwhile, adults with ADHD have usually developed coping mechanisms, have learned to mask and/or compensate for their symptoms, and we expect adults to manage their own problems, so nobody’s rushing to find an explanation on their behalf.

    Additionally, the stigma of neurodivergence—especially something popularly associated with children—isn’t something that many adults will want for themselves.

    But, if you have an ADHD brain, then recognizing that (even if just privately to yourself) can open the door to much better management of your symptoms… and your life.

    So what does ADHD look like in adults?

    ADHD involves a spread of symptoms, and not everyone will have them all, or have them in the same magnitude. However, very commonly most noticeable traits include:

    • Lack of focus (ease of distraction)
      • Conversely: high focus (on the wrong things)
        • To illustrate: someone with ADHD might set out to quickly tidy the sock drawer, and end up Marie Kondo-ing their entire wardrobe… when they were supposed to doing something else
    • Poor time management (especially: tendency to procrastinate)
    • Forgetfulness (of various kinds—for example, forgetting information, and forgetting to do things)

    Want To Take A Quick Test? Click Here ← this one is reputable, and free. No sign in required; the test is right there.

    Wait, where’s the hyperactivity in this Attention Deficit Hyperactivity Disorder?

    It’s often not there. ADHD is simply badly-named. This stems from how a lot of mental health issues are considered by society in terms of how much they affect (and are observable by) other people. Since ADHD was originally noticed in children (in fact being originally called “Hyperkinetic Reaction of Childhood”), it ended up being something like:

    “Oh, your brain has an inconvenient relationship with dopamine and you are driven to try to correct that by shifting attention from boring things to stimulating things? You might have trouble-sitting-still disorder”

    Hmm, this sounds like me (or my loved one); what to do now at the age of __?

    Some things to consider:

    • If you don’t want medication (there are pros and cons, beyond the scope of today’s article), you might consider an official diagnosis not worth pursuing. That’s fine if so, because…
    • More important than whether or not you meet certain diagnostic criteria, is whether or not the strategies recommended for it might help you.
    • Whether or not you talk to other people about it is entirely up to you. Maybe it’s a stigma you’d rather avoid… Or maybe it’ll help those around you to better understand and support you.
      • Either way, you might want to learn more about ADHD in adults. Today’s article was about recognizing it—we’ll write more about managing it another time!

    In the meantime… We recommended a great book about this a couple of weeks ago; you might want to check it out:

    Click here to see our review of “The Silent Struggle: Taking Charge of ADHD in Adults”!

    Note: the review is at the bottom of that page. You’ll need to scroll past the video (which is also about ADHD) without getting distracted by it and forgetting you were there to see about the book. So:

    1. Click the above link
    2. Scroll straight to the review!

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  • Lifespan – by Dr. David Sinclair

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    Some books on longevity are science-heavy and heavy-going; others are glorified manifestos with much philosophy but little practical.

    This one’s a sciencey-book written for a lay reader. It’s heavily referenced, but not a challenging read.

    This book is divided into three parts:

    1. What we know (the past)
    2. What we’re learning (the present)
    3. Where we’re going (the future)

    Let us quickly mention: the last part is principally sociology and economics, which are not the author’s wheelhouse. Some readers may enjoy his thoughts regardless, but we’re going to concentrate on where we found the real value of the book to be: in the first and second parts, where he brings his expertise to bear.

    The first part lays the foundational knowledge that’s critical for understanding why the second part is so important.

    Basically: aging is a genetic disease, and diseases can be cured. No disease has magical properties, even if sometimes it can seem for a while like they do, until we understand them better.

    The second part covers a lot of recent and contemporary research into aging. We learn about such things as NAD-agonists that make elderly mice biologically young again, and the Greenland shark that easily lives for 500 years or so (currently the record-holder for vertebrates). And of course, biologically immortal jellyfish.

    It’s not all animal studies though…

    We learn of how NAD-agonists such as NMN have been promising in human studies too, along with resveratrol and the humble diabetes drug, metformin. These things alone may have the power to extend healthy life by 20%

    Other recommendations pertain to lifestyle; the usual five things (diet, exercise, sleep, no alcohol, no smoking), as well as intermittent fasting and cryotherapy (cold showers/baths).

    Bottom line: this book is informative and inspiring, and if you’ve been looking for an “in” to understanding the world of biogerontology and/or anti-aging research, this is it.

    Get your copy of “Lifespan: Why We Age—And Why We Don’t Have To” from Amazon today!

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  • Vaccines and cancer: The myth that won’t die

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    Two recent studies reported rising cancer rates among younger adults in the U.S. and worldwide. This prompted some online anti-vaccine accounts to link the studies’ findings to COVID-19 vaccines. 

    But, as with other myths, the data tells a very different story. 

    What you need to know 

    • Baseless claims that COVID-19 vaccines cause cancer have persisted online for several years and gained traction in late 2023.
    • Two recent reports finding rising cancer rates among younger adults are based on pre-pandemic cancer incidence data. Cancer rates in the U.S. have been on the rise since the 1990s.
    • There is no evidence of a link between COVID-19 vaccination and increased cancer risk.

    False claims about COVID-19 vaccines began circulating months before the vaccines were available. Chief among these claims was misinformed speculation that vaccine mRNA could alter or integrate into vaccine recipients’ DNA. 

    It does not. But that didn’t prevent some on social media from spinning that claim into a persistent myth alleging that mRNA vaccines can cause or accelerate cancer growth. Anti-vaccine groups even coined the term “turbo cancer” to describe a fake phenomenon of abnormally aggressive cancers allegedly linked to COVID-19 vaccines. 

    They used the American Cancer Society’s 2024 cancer projection—based on incidence data through 2020—and a study of global cancer trends between 1999 and 2019 to bolster the false claims. This exposed the dishonesty at the heart of the anti-vaccine messaging, as data that predated the pandemic by decades was carelessly linked to COVID-19 vaccines in viral social media posts.

    Some on social media cherry-pick data and use unfounded evidence because the claims that COVID-19 vaccines cause cancer are not true. According to the National Cancer Institute and American Cancer Society, there is no evidence of any link between COVID-19 vaccines and an increase in cancer diagnosis, progression, or remission. 

    Why does the vaccine cancer myth endure?

    At the root of false cancer claims about COVID-19 vaccines is a long history of anti-vaccine figures falsely linking vaccines to cancer. Polio and HPV vaccines have both been the target of disproven cancer myths. 

    Not only do HPV vaccines not cause cancer, they are one of only two vaccines that prevent cancer.

    In the case of polio vaccines, some early batches were contaminated with simian virus 40 (SV40), a virus that is known to cause cancer in some mammals but not humans. The contaminated batches were discovered, and no other vaccine has had SV40 contamination in over 60 years

    Follow-up studies found no increase in cancer rates in people who received the SV40-contaminated polio vaccine. Yet, vaccine opponents have for decades claimed that polio vaccines cause cancer.

    Recycling of the SV40 myth

    The SV40 myth resurfaced in 2023 when vaccine opponents claimed that COVID-19 vaccines contain the virus. In reality, a small, nonfunctional piece of the SV40 virus is used in the production of some COVID-19 vaccines. This DNA fragment, called the promoter, is commonly used in biomedical research and vaccine development and doesn’t remain in the finished product. 

    Crucially, the SV40 promoter used to produce COVID-19 vaccines doesn’t contain the part of the virus that enters the cell nucleus and is associated with cancer-causing properties in some animals. The promoter also lacks the ability to survive on its own inside the cell or interact with DNA. In other words, it poses no risk to humans.

    Over 5.6 billion people worldwide have received COVID-19 vaccines since December 2020. At that scale, even the tiniest increase in cancer rates in vaccinated populations would equal hundreds of thousands of excess cancer diagnoses and deaths. The evidence for alleged vaccine-linked cancer would be observed in real incidence, treatment, and mortality data, not social media anecdotes or unverifiable reports. 

    This article first appeared on Public Good News and is republished here under a Creative Commons license.

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  • Semaglutide for Weight Loss?

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    Semaglutide for weight loss?

    Semaglutide is the new kid on the weight-loss block, but it’s looking promising (with some caveats!).

    Most popularly by brand names Ozempic and Wegovy, it was first trialled to help diabetics*, and is now sought-after by the rest of the population too. So far, only Wegovy is FDA-approved for weight loss. It contains more semaglutide than Ozempic, and was developed specifically for weight loss, rather than for diabetes.

    *Specifically: diabetics with type 2 diabetes. Because it works by helping the pancreas to make insulin, it’s of no help whatsoever to T1D folks, sadly. If you’re T1D and reading this though, today’s book of the day is for you!

    First things first: does it work as marketed for diabetes?

    It does! At a cost: a very common side effect is gastrointestinal problems—same as for tirzepatide, which (like semaglutide) is a GLP-1 agonist, meaning it works the same way. Here’s how they measure up:

    As you can see, both of them work wonders for pancreatic function and insulin sensitivity!

    And, both of them were quite unpleasant for around 20% of participants:

    ❝Tirzepatide, oral and SC semaglutide has a favourable efficacy in treating T2DM. Gastrointestinal adverse events were highly recorded in tirzepatide, oral and SC semaglutide groups.❞

    ~ Zaazouee et al., 2022

    What about for weight loss, if not diabetic?

    It works just the same! With just the same likelihood of gastro-intestinal unpleasantries, though. There’s a very good study that was done with 1,961 overweight adults; here it is:

    Once-Weekly Semaglutide in Adults with Overweight or Obesity

    The most interesting things here are the positive results and the side effects:

    ❝The mean change in body weight from baseline to week 68 was −14.9% in the semaglutide group as compared with −2.4% with placebo, for an estimated treatment difference of −12.4 percentage points (95% confidence interval [CI], −13.4 to −11.5; P<0.001).❞

    ~ Wilding et al., 2021

    In other words: if you take this, you’re almost certainly going to get something like 6x better weight loss results than doing the same thing without it.

    ❝Nausea and diarrhea were the most common adverse events with semaglutide; they were typically transient and mild-to-moderate in severity and subsided with time. More participants in the semaglutide group than in the placebo group discontinued treatment owing to gastrointestinal events (59 [4.5%] vs. 5 [0.8%])❞

    ~ ibid.

    In other words: you have about a 3% chance of having unpleasant enough side effects that you don’t want to continue treatment (contrast this with the 20%ish chance of unpleasant side effects of any extent)!

    Any other downsides we should know about?

    If you stop taking it, weight regain is likely. For example, a participant in one of the above-mentioned studies who lost 22% of her body weight with the drug’s help, says:

    ❝Now that I am no longer taking the drug, unfortunately, my weight is returning to what it used to be. It felt effortless losing weight while on the trial, but now it has gone back to feeling like a constant battle with food. I hope that, if the drug can be approved for people like me, my [doctor] will be able to prescribe the drug for me in the future.❞

    ~ Jan, a trial participant at UCLH

    Source: Gamechanger drug for treating obesity cuts body weight by 20% <- University College London Hospitals (NHS)

    Is it injection-only, or is there an oral option?

    An oral option exists, but (so far) is on the market only in the form of Rybelsus, another (slightly older) drug containing semaglutide, and it’s (so far) only FDA-approved for diabetes, not for weight loss. See:

    A new era for oral peptides: SNAC and the development of oral semaglutide for the treatment of type 2 diabetes ← for the science

    FDA approves first oral GLP-1 treatment for type 2 diabetes ← For the FDA statement

    Where can I get these?

    Availability and prescribing regulations vary by country (because the FDA’s authority stops at the US borders), but here is the website for each of them if you’d like to learn more / consider if they might help you:

    Rybelsus / Ozempic / Wegovy

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  • Should Men Over 50 Get PSA?

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    It’s Q&A Day at 10almonds!

    Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!

    In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

    As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!

    So, no question/request too big or small

    ❝Loved the information on prostate cancer. Do recommend your readers get a PSA or equivalent test annually for over 50 yr old men.❞

    (This is about: Prostate Health: What You Should Know)

    Yep, or best yet, the much more accurate PSE test! But if PSA test is what’s available, it’s a lot better than nothing. And, much as it’s rarely the highlight of anyone’s day, a prostate exam by a suitably qualified professional is also a good idea.

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  • Cancer is increasingly survivable – but it shouldn’t depend on your ability to ‘wrangle’ the health system

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    One in three of us will develop cancer at some point in our lives. But survival rates have improved to the point that two-thirds of those diagnosed live more than five years.

    This extraordinary shift over the past few decades introduces new challenges. A large and growing proportion of people diagnosed with cancer are living with it, rather than dying of it.

    In our recently published research we examined the cancer experiences of 81 New Zealanders (23 Māori and 58 non-Māori).

    We found survivorship not only entailed managing the disease, but also “wrangling” a complex health system.

    Surviving disease or surviving the system

    Our research focused on those who had lived longer than expected (four to 32 years since first diagnosis) with a life-limiting or terminal diagnosis of cancer.

    Common to many survivors’ stories was the effort it took to wrangle the system or find others to advocate on their behalf, even to get a formal diagnosis and treatment.

    By wrangling we refer to the practices required to traverse complex and sometimes unwelcoming systems. This is an often unnoticed but very real struggle that comes on top of managing the disease itself.

    The common focus of the healthcare system is on symptoms, side effects of treatment and other biological aspects of cancer. But formal and informal care often falls by the wayside, despite being key to people’s everyday experiences.

    A woman at a doctor's appointment
    Survival is often linked to someone’s social connections and capacity to access funds. Getty Images

    The inequities of cancer survivorship are well known. Analyses show postcodes and socioeconomic status play a strong role in the prevalence of cancer and survival.

    Less well known, but illustrated in our research, is that survival is also linked to people’s capacity to manage the entire healthcare system. That includes accessing a diagnosis or treatment, or identifying and accessing alternative treatments.

    Survivorship is strongly related to material resources, social connections, and understandings of how the health system works and what is available. For instance, one participant who was contemplating travelling overseas to get surgery not available in New Zealand said:

    We don’t trust the public system. So thankfully we had private health insurance […] But if we went overseas, health insurance only paid out to $30,000 and I think the surgery was going to be a couple of hundred thousand. I remember Dad saying and crying and just being like, I’ll sell my business […] we’ll all put in money. It was really amazing.

    Assets of survivorship

    In New Zealand, the government agency Pharmac determines which medications are subsidised. Yet many participants were advised by oncologists or others to “find ways” of taking costly, unsubsidised medicines.

    This often meant finding tens of thousands of dollars with no guarantees. Some had the means, but for others it meant drawing on family savings, retirement funds or extending mortgages. This disproportionately favours those with access to assets and influences who survives.

    But access to economic capital is only one advantage. People also have cultural resources – often described as cultural capital.

    In one case, a participant realised a drug company was likely to apply to have a medicine approved. They asked their private oncologist to lobby on their behalf to obtain the drug through a compassionate access scheme, without having to pay for it.

    Others gained community support through fundraising from clubs they belonged to. But some worried about where they would find the money, or did not want to burden their community.

    I had my doctor friend and some others that wanted to do some public fundraising. But at the time I said, “Look, most of the people that will be contributing are people from my community who are poor already, so I’m not going to do that option”.

    Accessing alternative therapies, almost exclusively self-funded, was another layer of inequity. Some felt forced to negotiate the black market to access substances such as marijuana to treat their cancer or alleviate the side effects of orthodox cancer treatment.

    Cultural capital is not a replacement for access to assets, however. Māori survivorship was greatly assisted by accessing cultural resources, but often limited by lack of material assets.

    Persistence pays

    The last thing we need when faced with the possibility of cancer is to have to push for formal diagnosis and care. Yet this was a common experience.

    One participant was told nothing could be found to explain their abdominal pain – only to find later they had pancreatic cancer. Another was told their concerns about breathing problems were a result of anxiety related to a prior mental health history, only to learn later their earlier breast cancer had spread to their lungs.

    Persistence is another layer of wrangling and it often causes distress.

    Once a diagnosis was given, for many people the public health system kicked in and delivered appropriate treatment. However, experiences were patchy and variable across New Zealand.

    Issues included proximity to hospitals, varying degrees of specialisation available, and the requirement of extensive periods away from home and whānau. This reflects an ongoing unevenness and lack of fairness in the current system.

    When facing a terminal or life-limiting diagnosis, the capacity to wrangle the system makes a difference. We shouldn’t have to wrangle, but facing this reality is an important first step.

    We must ensure it doesn’t become a continuing form of inequity, whereby people with access to material resources and social and cultural connections can survive longer.

    Kevin Dew, Professor of Sociology, Te Herenga Waka — Victoria University of Wellington; Alex Broom, Professor of Sociology & Director, Sydney Centre for Healthy Societies, University of Sydney; Chris Cunningham, Professor of Maori & Public Health, Massey University; Elizabeth Dennett, Associate Professor in Surgery, University of Otago; Kerry Chamberlain, Professor of Social and Health Psychology, Massey University, and Richard Egan, Associate Professor in Health Promotion, University of Otago

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

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