Weight Vests Against Osteoporosis: Do They Really Build Bone?

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Dr. Doug Lucas is a dual board-certified physician specializing in optimizing healthspan and bone health for women experiencing osteoporosis, perimenopause, and menopause. Here, he talks weight vests:

Worth the weight?

Dr. Lucas cites “Wolf’s Law”—bones respond to stress. A weighted vest adds stress, to help build bone density. That said, they may not be suitable for everyone (for example, in cases of severe osteoporosis or a recent vertebral fracture).

He also cites some studies:

  • Erlanger Fitness Study (2004): participants with a weighted vest maintained or improved bone density compared to a control group, but there was no group with exercise alone, making it unclear if the vest itself had the biggest impact.
  • Newer studies (2016, 2017): showed improved outcomes for groups wearing a weighted vest, but again lacked an exercise-only group for comparison.
  • 2012 study: included three groups (control, weighted vest, exercise only). Results showed no significant bone density difference between vest and exercise-only groups, though the vest group showed better balance and motor control.

Dr. Lucas concludes that weighted vests are a useful tool while nevertheless not being a magic bullet for bone health. In other words, they can complement exercise but you will also be fine without. If you do choose to level-up your exercise by using a weight vest, then starting with 5–10% of body weight in a vest is often recommended, but it depends on individual circumstances. If in doubt, start low and build up. Wearing the vest for daily activities can be effective, but improper use (awkward positions or improper impact training) can increase injury risk, so do be careful with that.

For more on all of this, enjoy:

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  • One in twenty people has no sense of smell – here’s how they might get it back

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    During the pandemic, a lost sense of smell was quickly identified as one of the key symptoms of COVID. Nearly four years later, one in five people in the UK is living with a decreased or distorted sense of smell, and one in twenty have anosmia – the total loss of the ability to perceive any odours at all. Smell training is one of the few treatment options for recovering a lost sense of smell – but can we make it more effective?

    Smell training is a therapy that is recommended by experts for recovering a lost sense of smell. It is a simple process that involves sniffing a set of different odours – usually essential oils, or herbs and spices – every day.

    The olfactory system has a unique ability to regenerate sensory neurons (nerve cells). So, just like physiotherapy where exercise helps to restore movement and function following an injury, repeated exposure to odours helps to recover the sense of smell following an infection, or other cause of smell loss (for example, traumatic head injury).

    Several studies have demonstrated the effectiveness of smell training under laboratory conditions. But recent findings have suggested that the real-world results might be disappointing.

    One reason for this is that smell training is a long-term therapy. It can take months before patients detect anything, and some people may not get any benefit at all.

    In one study, researchers found that after three months of smell training, participation dropped to 88%, and further declined to 56% after six months. The reason given was that these people did not feel as though they noticed any improvement in their ability to smell.

    Cross-modal associations

    To remedy this, researchers are now investigating how smell training can be improved. One interesting idea is that information from our other senses, or “cross-modal associations”, can be applied to smell training to promote odour perception and improve the results.

    Cross-modal associations are described as the tendency for sensory cues from different sensory systems to be matched. For example, brightness tends to be associated with loudness. Pitch is related to size. Colours are linked to temperature, and softness is matched with round shapes, while spiky shapes feel more rough. In previous studies, these associations have been shown to have a considerable influence on how sensory information is processed. Especially when it comes to olfaction.

    Recent research has shown that the sense of smell is influenced by a combination of different sensory inputs – not just odours. Sensory cues such as colour, shape, and pitch are believed to play a role in the ability to correctly identify and name odours, and can influence perceptions of odour pleasantness and intensity.

    In one study, participants were asked to complete a test that measured their ability to discriminate between different odours while they were presented with the colour red or yellow, an outline drawing of a strawberry or a lemon, or a combination of these colours and shapes. The results suggested that corresponding odour and colour associations (for example, the colour red and strawberry) were linked to increased olfactory performance compared with odours and colours that were not associated (for example, the colour yellow and strawberry).

    Strawberries
    People who associated strawberries with the colour red performed better on smell tests. GCapture/Shutterstock

    While projects focusing on harnessing these cross-modal associations to improve treatments for smell loss are underway, research has already started to deliver some promising results.

    In a recent study that aimed to investigate whether the effects of smell training could be improved with the addition of cross-modal associations, participants watched a guidance video containing sounds that matched the odours that they were training with. The results suggest that cross-modal interactions plus smell training improved olfactory function compared to smell training alone.

    The results reported in recent studies have been promising and offer new insights into the field of olfactory science. It is hoped that this will soon lead to the development of more effective treatment options for smell recovery.

    In the meantime, smell training is one of the best things you can do for a lost sense of smell, so patients are encouraged to stick with it so that they give themselves the best chance at recovery.

    Emily Spencer, PhD Candidate, Olfaction, Edinburgh Napier University

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

    The Conversation

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  • Resistance Beyond Weights

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    Resistance, Your Way

    We’ve talked before about the importance of resistance training:

    Resistance Is Useful! (Especially As We Get Older)

    And we’ve even talked about how to make resistance training more effective:

    HIIT, But Make It HIRT

    (High Intensity Interval Training, but make it High Intensity Resistance Training)

    Which resistance training exercises are best?

    There are two reasonable correct answers here:

    1. The resistance training exercises that you will actually do (because it’s no good knowing the best exercise ever if you’re not going to do it because it is in some way offputting to you)
    2. The resistance training exercises that will prevent you from getting a broken bone in the event of some accident or incident

    This latter is interesting, because when people think resistance training, the usually immediate go-to exercises are often things like the bench press, or the chest machine in the gym.

    But ask yourself: how often do we hear about some friend or relative who in their old age has broken their humerus?

    It can happen, for sure, but it’s not as often as breaking a hip, a tarsal (ankle bones), or a carpal (wrist bones).

    So, how can we train to make those bones strong?

    Strong bones grow under strong muscles

    When archaeologists dig up a skeleton from a thousand years ago, one of the occupations that’s easy to recognize is an archer. Why?

    An archer has an unusual frequent exercise: pushing with their left arm while pulling with their right arm. This will strengthen different muscles on each side, and thus, increase bone density in different places on each arm. The left first metacarpal and right first and second metacarpals and phalanges are also a giveaway.

    This is because: one cannot grow strong muscles on weak bones (or else the muscles would just break the bones), so training muscles will force the body to strengthen the relevant bones.

    So: if you want strong bones, train the muscles attached to those bones

    This answers the question of “how am I supposed to exercise my hips” etc.

    Weights, bodyweight, resistance bands

    If you go to the gym, there’s a machine for everything, and a member of gym staff will be able to advise which of their machines will strengthen which muscles.

    If you train with free weights at home:

    • Wrist curls (forearm supported and stationary, lifting a dumbbell in your hand, palm-upwards) will strengthen the wrist
    • The farmer’s walk (carrying a heavy weight in each hand) will also strengthen your wrist
      • A modified version of this involves holding the weight with just your fingertips, and then raising and lowering it by curling and uncurling your fingers)
    • Lateral leg raises (you will need ankle-weights for this) will strengthen your ankles and your hips, as will hip abductions (as in today’s featured video), especially with a weight attached.
    • Ankle raises (going up on your tip-toes and down again, repeat) while holding weights in your hands will strengthen your ankles

    If you don’t like weights:

    • Press-ups will strengthen your wrists
      • Fingertip press-ups are even better: to do these, do your press-ups as normal, except that the only parts of your hands in contact with the ground are your fingertips
      • This same exercise can be done the other way around, by doing pull-ups
      • And that same “even better” works by doing pull-ups, but holding the bar only with one’s fingertips, and curling one’s fingers to raise oneself up
    • Lateral leg raises and hip abductions can be done with a resistance band instead of with weights. The great thing about these is that whereas weights are a fixed weight, resistance bands will always provide the right amount of resistance (because if it’s too easy, you just raise your leg further until it becomes difficult again, since the resistance offered is proportional to how much tension the band is under).

    Remember, resistance training is still resistance training even if “all” you’re resisting is gravity!

    If it fells like work, then it’s working

    As for the rest of preparing to get older?

    Check out:

    Training Mobility Ready For Later Life

    Take care!

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  • Do You Have A Personalized Health Plan? (Here’s How)

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    “Good health” is quite a broad umbrella, and while we all have a general idea of what “healthy” looks like, it’s easy to focus on some areas and overlook others.

    Of course, how much one does this will still depend on one’s level of interest in health, which can change over the course of life, and (barring serious midlife health-related curveballs such as a cancer diagnosis or something) often looks like an inverse bell curve:

    • As small kids, we probably barely thought about health
    • As teenagers, we probably had a narrow view of health (often related to whatever is considered sexually attractive at the time)
    • In our 20s, may have a bit of a health kick in which we learn and apply a lot… Which often then gets to later take a bit of a back seat to work responsibilities and so forth
    • This is commonly followed by a few decades of just trying to make it to Friday by any means necessary (definite risk factor for substance abuse of various kinds), double if we have kids, triple if we have work, kids, and are also solely responsible for managing the household.
    • Then just as suddenly as it is predictably, we are ambushed when approaching retirement age by a cluster of age-related increased health risks that we now get to do our best to mitigate—the focus here is “not dying early”. A lot of health education occurs at this time.
    • Finally, upon retirement, we actually get the time to truly focus on our health again, and now it’s easier to learn about all aspects of health, even if now there’s a need to juggle many health issues all at once, most of which affect the others.

    See also: How Likely Are You To Live To 100? ← in which we can also see a graph of 10almonds subscribers’ ages, consistent with the above

    So, let’s recap, and personalize our health plan

    There are often things we wish we could have focused on sooner, so now’s the time to figure out what future-you in your next decade (or later!) is going to thank you for having done now.

    So, while 20-year-old us might have been focusing on fat levels or athletic performance, how much does that really help us now? (With apologies to any readers in their 20s, but also, with the bonus for you: now’s the perfect time to plan ahead!)

    At 10almonds, while we cover very many health topics, we often especially focus on:

    • Brain health
    • Heart health
    • Gut health

    …because they affect everything else so much. We’ve listed them there in the order they appear in the body, but in fact it can be useful to view them upside down, because:

    • Gut health is critical for good metabolic health (a happy efficient gut allows us to process nutrients, including energy, efficiently)
    • Metabolic health is critical for good heart health (a nicely ticking metabolism will not strain our heart)
    • Heart health is critical for good brain health (a strong heart will nourish the brain with well-oxygenated blood and the nutrients it also carries)

    So, this isn’t a catch-22 at all! There is a clear starting point:

    Stop Sabotaging Your Gut

    “How do I do the other bits, though?”

    We have you covered here: Your Health Audit, From Head To Toe

    “Wait, where’s the personalization?”

    This comes once you’ve got those above things in order.

    Hopefully you know what particular health risks you have—as in, particular to you.

    First, you will have any current diagnoses, and a plan for treating those. Many chronic illnesses can be reversed or at least lessened with lifestyle changes, in particular, if we reduce chronic inflammation, which is implicated in countless chronic illnesses, and exacerbates most of the rest.

    So: How to Prevent (or Reduce) Inflammation

    The same goes for any heightened risks you have as a result of those current diagnoses.

    Next, you will have any genetic health risks—so here’s where genetic testing is a good one-shot tool, to get a lot of information all in one go.

    Learn more: The Real Benefit Of Genetic Testing

    …and then, of course, take appropriate steps to avoid suffering the things of which you are at increased genetic risk.

    Finally, you will have any personal concerns or goals—in other words, what do you want to still be able to do, later in life? It’s easy to say “everything”, but what’s most important?

    This writer’s example: I want to remain mobile, free from pain, and sharp of mind.

    That doesn’t mean I’ll neglect the rest of my health, but it does mean that I will regularly weigh my choices against whether they are consistent with those three things.

    As for how to plan for that?

    Check out: Train For The Event Of Your Life! ← this one is mostly about the mobility aspect; staying free from pain is in large part a matter of avoiding inflammation which we already discussed, and staying sharp of mind relies on the gut-heart-brain pipeline we also covered.

    You can also, of course, personalize your diet per which areas of health are the most important for you:

    Four Ways To Upgrade The Mediterranean (most anti-inflammatory, gut-healthiest, heart-healthiest, brain-healthiest)

    Take care!

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  • Pink Himalayan Salt: Health Facts

    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.

    It’s Q&A Day at 10almonds!

    Q: Great article about the health risks of salt to organs other than the heart! Is pink Himalayan sea salt, the pink kind, healthier?

    Thank you! And, no, sorry. Any salt that is sodium chloride has the exact same effect because it’s chemically the same substance, even if impurities (however pretty) make it look different.

    If you want a lower-sodium salt, we recommend the kind that says “low sodium” or “reduced sodium” or similar. Check the ingredients, it’ll probably be sodium chloride cut with potassium chloride. Potassium chloride is not only not a source of sodium, but also, it’s a source of potassium, which (unlike sodium) most of us could stand to get a little more of.

    For your convenience: here’s an example on Amazon!

    Bonus: you can get a reduced sodium version of pink Himalayan salt too!

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  • This Book May Save Your Life – by Dr. Karan Rajan

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    The title is a bold sell, but the book does include a lot of information about what can go wrong in your body, and how those things can be avoided.

    What it’s not: a reiteration of Dr. Michael Greger’s “How Not To Die“. It’s not dense medical information, and it doesn’t cite papers at a rate of ten per page.

    What it is: an easy-reading tour guide of the human body and its many quirks and foibles, and how we can leverage those to our benefit. On which note…

    Hopefully, your insides will never see the light of day, but this author is a general surgeon and as such, is an experienced and well-qualified tour guide. Here, we learn about everything from the long and interesting journey through our gut, to the unique anatomical features and liabilities of the brain. From the bizarre oddities of the genitals, to things most people don’t know about the process of death.

    The style of the book is very casual, with lots of short sections (almost mini chapters-within-chapters, really) making for very light reading—and certainly enjoyable reading too, unless you are inclined to squeamishness.

    Bottom line: in honesty, the book is more informative than it is instructional, though it does contain the promised health tips too. With that in mind, it’s a very enjoyable and educational read, and we do recommend it.

    Click here to check out This Book May Save Your Life, and learn more about your own weird and wonderful body!

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  • Sun, Sea, And Sudden Killers To Avoid

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    Stay Safe From Heat Exhaustion & Heatstroke!

    For most of us, summer is upon us now. Which can be lovely… and also bring new, different health risks. Today we’re going to talk about heat exhaustion and heatstroke.

    What’s the difference?

    Heat exhaustion is a milder form of heatstroke, but the former can turn into the latter very quickly if left untreated.

    Symptoms of heat exhaustion include:

    • Headache
    • Nausea
    • Cold sweats
    • Light-headedness

    Symptoms of heatstroke include the above and also:

    • Red/flushed-looking skin
    • High body temperature (104ºF / 40ºC)
    • Disorientation/confusion
    • Accelerated heart rate

    Click here for a handy downloadable infographic you can keep on your phone

    What should we do about it?

    In the case of heatstroke, call 911 or the equivalent emergency number for the country where you are.

    Hopefully we can avoid it getting that far, though:

    Prevention first

    Here are some top tips to avoid heat exhaustion and thus also avoid heatstroke. Many are common sense, but it’s easy to forget things—especially in the moment, on a hot sunny day!

    • Hydrate, hydrate, hydrate
      • (Non-sugary) iced teas, fruit infusions, that sort of thing are more hydrating than water alone
      • Avoid alcohol
        • If you really want to imbibe, rehydrate between each alcoholic drink
    • Time your exercise with the heat in mind
      • In other words, make any exercise session early or late in the day, not during the hottest period
    • Use sunscreen
      • This isn’t just for skin health (though it is important for that); it will also help keep you cooler, as it blocks the UV rays that literally cook your cells
    • Keep your environment cool
      • Shade is good, air conditioning / cooling fans can help.
      • A wide-brimmed hat is portable shade just for you
    • Wear loose, breathable clothing
      • We write about health, not fashion, but: light breathable clothes that cover more of your body are generally better healthwise in this context, than minimal clothes that don’t, if you’re in the sun.
    • Be aware of any medications you’re taking that will increase your sensitivity to heat.
      • This includes medications that are dehydrating, and includes most anti-depressants, many anti-nausea medications, some anti-allergy medications, and more.
      • Check your labels/leaflets, look up your meds online, or ask your pharmacist.

    Treatment

    If prevention fails, treatment is next. Again, in the case of heatstroke, it’s time for an ambulance.

    If symptoms are “only” of heat exhaustion and are more mild, then:

    • Move to a cooler location
    • Rehydrate again
    • Remove clothing that’s confining or too thick
      • What does confining mean? Clothing that’s tight and may interfere with the body’s ability to lose heat.
        • For example, you might want to lose your sports bra, but there is no need to lose a bikini, for instance.
    • Use ice packs or towels soaked in cold water, applied to your body, especially wear circulation is easiest to affect, e.g. forehead, wrists, back of neck, under the arms, or groin.
    • A cool bath or shower, or a dip in the pool may help cool you down, but only do this if there’s someone else around and you’re not too dizzy.
      • This isn’t a good moment to go in the sea, no matter how refreshing it would be. You do not want to avoid heatstroke by drowning instead.

    If full recovery doesn’t occur within a couple of hours, seek medical help.

    Stay safe and have fun!

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