Is owning a dog good for your health?

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Australia loves dogs. We have one of the highest rates of pet ownership in the world, and one in two households has at least one dog.

But are they good for our health?

Mental health is the second-most common reason cited for getting a dog, after companionship. And many of us say we “feel healthier” for having a dog – and let them sleep in our bedroom.

Here’s what it means for our physical and mental health to share our homes (and doonas) with our canine companions.

Pogodina Natalia/Shutterstock

Are there physical health benefits to having a dog?

Having a dog is linked to lower risk of death over the long term. In 2019, a systematic review gathered evidence published over 70 years, involving nearly four million individual medical cases. It found people who owned a dog had a 24% lower risk of dying from any cause compared to those who did not own a dog.

A golden retriever pants on the grass next to a ball.
Having a dog may help lower your blood pressure through more physical activity. Barnabas Davoti/Pexels

Dog ownership was linked to increased physical activity. This lowered blood pressure and helped reduce the risk of stroke and heart disease.

The review found for those with previous heart-related medical issues (such as heart attack), living with a dog reduced their subsequent risk of dying by 35%, compared to people with the same history but no dog.

Another recent UK study found adult dog owners were almost four times as likely to meet daily physical activity targets as non-owners. Children in households with a dog were also more active and engaged in more unstructured play, compared to children whose family didn’t have a dog.

Exposure to dirt and microbes carried in from outdoors may also strengthen immune systems and lead to less use of antibiotics in young children who grow up with dogs.

A boy in sunglasses talks to his jack russell terrier on a beach.
Children in households with a dog were often more active. Maryshot/Shutterstock

Health risks

However, dogs can also pose risks to our physical health. One of the most common health issues for pet owners is allergies.

Dogs’ saliva, urine and dander (the skin cells they shed) can trigger allergic reactions resulting in a range of symptoms, from itchy eyes and runny nose to breathing difficulties.

A recent meta-analysis pooled data from nearly two million children. Findings suggested early exposure to dogs may increase the risk of developing asthma (although not quite as much as having a cat does). The child’s age, how much contact they have with the dog and their individual risk all play a part.

Slips, trips and falls are another risk – more people fall over due to dogs than cats.

Having a dog can also expose you to bites and scratches which may become infected and pose a risk for those with compromised immune systems. And they can introduce zoonotic diseases into your home, including ring worm and Campylobacter, a disease that causes diarrhoea.

For those sharing the bed there is an elevated the risk of allergies and picking up ringworm. It may result in lost sleep, as dogs move around at night.

On the other hand some owners report feeling more secure while co-sleeping with their dogs, with the emotional benefit outweighing the possibility of sleep disturbance or waking up with flea bites.

Proper veterinary care and hygiene practices are essential to minimise these risks.

A dog peers out from under a doona while a man sleeps.
Many of us don’t just share a home with a dog – we let them sleep in our beds. Claudia Mañas/Unsplash

What about mental health?

Many people know the benefits of having a dog are not only physical.

As companions, dogs can provide significant emotional support helping to alleviate symptoms of anxiety, depression and post-traumatic stress. Their presence may offer comfort and a sense of purpose to individuals facing mental health challenges.

Loneliness is a significant and growing public health issue in Australia.

In the dog park and your neighbourhood, dogs can make it easier to strike up conversations with strangers and make new friends. These social interactions can help build a sense of community belonging and reduce feelings of social isolation.

For older adults, dog walking can be a valuable loneliness intervention that encourages social interaction with neighbours, while also combating declining physical activity.

However, if you’re experiencing chronic loneliness, it may be hard to engage with other people during walks. An Australian study found simply getting a dog was linked to decreased loneliness. People reported an improved mood – possibly due to the benefits of strengthening bonds with their dog.

Three dogs on leash sniff each other.
Walking a dog can make it easier to talk to people in your neighbourhood. KPegg/Shutterstock

What are the drawbacks?

While dogs can bring immense joy and numerous health benefits, there are also downsides and challenges. The responsibility of caring for a dog, especially one with behavioural issues or health problems, can be overwhelming and create financial stress.

Dogs have shorter lifespans than humans, and the loss of a beloved companion can lead to depression or exacerbate existing mental health conditions.

Lifestyle compatibility and housing conditions also play a significant role in whether having a dog is a good fit.

The so-called pet effect suggests that pets, often dogs, improve human physical and mental health in all situations and for all people. The reality is more nuanced. For some, having a pet may be more stressful than beneficial.

Importantly, the animals that share our homes are not just “tools” for human health. Owners and dogs can mutually benefit when the welfare and wellbeing of both are maintained.

Tania Signal, Professor of Psychology, School of Health, Medical and Applied Sciences, CQUniversity Australia

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

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  • Resveratrol & Healthy Aging

    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.

    Resveratrol & Healthy Aging

    Resveratrol is the compound found in red grapes, and thus in red wine, that have resulted in red wine being sometimes touted as a heart-healthy drink.

    However, at the levels contained in red wine, you’d need to drink 100–1000 glasses of wine per day (depending on the wine) to get the dose of resveratrol that were associated with heart health benefits in mouse studies.

    (if you are not a mouse, you might need to drink even more than that)

    Further reading: can we drink to good health?

    Resveratrol supplementation

    Happily, resveratrol supplements exist. But what does resveratrol do?

    It lowers blood pressure:

    Effect of resveratrol on blood pressure: a meta-analysis of randomized controlled trials

    It improves blood lipid levels:

    Consumption of resveratrol decreases oxidized LDL and ApoB in patients undergoing primary prevention of cardiovascular disease: a triple-blind, 6-month follow-up, placebo-controlled, randomized trial

    It improves insulin sensitivity:

    Resveratrol retards progression of diabetic nephropathy through modulations of oxidative stress, proinflammatory cytokines, and AMP-activated protein kinase

    It has neuroprotective effects too:

    Resveratrol promotes clearance of Alzheimer’s disease amyloid-beta peptides

    Is it safe?

    For most people, it is generally recognized as safe. However, if you are on blood-thinners or otherwise have a bleeding disorder, you might want to skip it:

    Antiplatelet activity of synthetic and natural resveratrol in red wine

    You also might want to check with your pharmacist/doctor, if you’re on blood pressure meds, anxiety meds, or immunosuppressants, as it can increase the amount of these drugs that will then stay in your system:

    Resveratrol modulates drug- and carcinogen-metabolizing enzymes in a healthy volunteer study

    And as ever, of course, if unsure just check with your pharmacist/doctor, to be on the safe side.

    Where to get it?

    We don’t sell it, but here’s an example product on Amazon for your convenience

    Enjoy!

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  • Acorns vs Chestnuts – 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 acorns to chestnuts, we picked the acorns.

    Why?

    In terms of macros, chestnuts are mostly water, so it’s not surprising that acorns have a lot more carbs, fat, protein, and fiber. Thus, unless you have personal reasons for any of those to be a problem, acorns are the better choice, offering a lot more nutritional value.

    In the category of vitamins, acorns lead with a lot more of vitamins A, B2, B3, B5, B6, and B9, while chestnuts have more of vitamins B1 and C. However, that vitamin C is useless to us, because it is destroyed in the cooking process (by boiling or roasting), and both of these nuts can be harmful if consumed raw, so that cooking does need to be done. That leaves acorns with a 6:1 lead.

    When it comes to minerals, things are more even; acorns have more copper, magnesium, manganese, and zinc, while chestnuts have more calcium, iron, phosphorus, and potassium. Thus, a 4:4 tie (and yes, the margins of difference are approximately equal too).

    We mentioned “both of these nuts can be harmful if consumed raw”, so a note on that: it’s because, while both contain an assortment of beneficial phytochemicals, they also both contain tannins that, if consumed raw, chelate with iron, essentially taking it out of our diet and potentially creating an iron deficiency. Cooking tannins stops this from being an issue, and the same cooking process renders the tannins actively beneficial to the health, for their antioxidant powers.

    You may have heard that acorns are poisonous; that’s not strictly speaking true, except insofar as anything could be deemed poisonous in excess (including such things as water, and oxygen). Rather, it’s simply the above-described matter of the uncooked tannins and iron chelation. Even then, you’re unlikely to suffer ill effects unless you consume them raw in a fair quantity. While acorns have fallen from popular favor sufficient that one doesn’t see them in supermarkets, the fact is they’ve been enjoyed as an important traditional part of the diet by various indigenous peoples of N. America for centuries*, and provided they are cooked first, they are a good healthy food for most people.

    *(going so far as to cultivate natural oak savannah areas, by burning out young oaks to leave the old ones to flourish without competition, to maximize acorn production, and then store dried acorns in bulk sufficient to cover the next year or so in case of a bad harvest later—so these was not just an incidental food, but very important “our life may depend on this” food. Much like grain in many places—and yes, acorns can be ground into flour and used to make bread etc too)

    Do note: they are both still tree nuts though, so if you have a tree nut allergy, these ones aren’t for you.

    Otherwise, enjoy both; just cook them first!

    Want to learn more?

    You might like to read:

    Why You Should Diversify Your Nuts

    Take care!

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  • Creamy Zucchini, Edamame, & Asparagus Linguine

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    Protein, fiber, and polyphenols are the dish of the day here:

    You will need

    • 1½ cups milk (your choice what kind; we recommend soy for its neutral taste, though hazelnut’s nutty flavor would also work in this recipe)
    • 6 oz wholegrain linguine (or your pasta of choice)
    • 2 zucchini, thinly sliced
    • 5 oz edamame beans (frozen is fine)
    • 5 oz asparagus tips, cut into 2″ lengths
    • ½ bulb garlic, crushed
    • 1 tbsp chia seeds
    • 1 small handful arugula
    • 1 small handful parsley, chopped
    • A few mint leaves, chopped
    • Juice of ½ lemon
    • 2 tsp black pepper, coarse ground
    • ½ tsp MSG or 1 tsp low-sodium salt
    • Extra virgin olive oil

    Method

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

    1) Heat some oil in a sauté pan or similar, over a low to medium heat. Add the zucchini and cook for 5 minutes until they start to soften.

    2) Add the garlic and continue cooking for 1 minute, stirring gently.

    3) Add the milk, bring to the boil, and add the past, chia seeds (the resistant starch from the pasta will help thicken the sauce, as will the chia seeds), and MSG or salt.

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    5) Add the edamame beans and asparagus, and cook for a further 2 minutes, or until the pasta is cooked but still firm to the bite. The sauce should be quite thick now.

    6) Stir in the remaining ingredients and serve, adding a garnish if you wish.

    Enjoy!

    Want to learn more?

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

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  • The China Study – by Dr. T Colin Campbell and Dr. Thomas M. Campbell

    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.

    This is not the newest book we’ve reviewed (originally published 2005; this revised and expanded edition 2016), but it is a seminal one.

    You’ve probably heard it referenced, and maybe you’ve wondered what the fuss is about. Now you can know!

    The titular study itself was huge. We tend to think “oh there was one study” and look to discount it, but it literally looked at the population of China. That’s a large study.

    And because China is relatively ethnically homogenous, especially per region, it was easier to isolate what dietary factors made what differences to health. Of course, that did also create a limitation: follow-up studies would be needed to see if the results were the same for non-Chinese people. But even for the rest of us (this reviewer is not Chinese), it already pointed science in the right direction. And sure enough, smaller follow-up studies elsewhere found the same.

    But enough about the research; what about the book? This is a book review, not a research review, after all.

    The book itself is easy for a lay reader to understand. It explains how the study was conducted (no small feat), and how the data was examined. It also discusses the results, and the conclusions drawn from those results.

    In light of all this, it also offers simple actionable advices, on how to eat to avoid disease in general, and cancer in particular. In especially that latter case, one take-home conclusion was: get more of your protein from plants for a big reduction in cancer risk, for example.

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  • The Conquest of Happiness – by Bertrand Russell

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    When we have all our physical needs taken care of, why are we often still not happy, and what can we do about that?

    Mathematician, philosopher, and Nobel prizewinner Bertrand Russell has answers. And, unlike many of “the great philosophers”, his writing style is very clear and accessible.

    His ideas are simple and practical, yet practised by few. Rather than taking a “be happy with whatever you have” approach, he does argue that we should strive to find more happiness in some areas and ways—and lays out guidelines for doing so.

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    Click here to check out The Conquest of Happiness, and see how much happier you might become!

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  • What you need to know about PCOS

    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.

    In 2008, microbiologist Sasha Ottey saw her OB-GYN because she had missed some periods. The doctor ran blood tests and gave her an ultrasound, diagnosing her with polycystic ovary syndrome (PCOS). She also told her not to worry, referred her to an endocrinologist (a doctor who specializes in hormones), and told her to come back when she wanted to get pregnant. 

    “I found [that] quite dismissive because that was my reason for presenting to her,” Ottey tells PGN. “I felt that she was missing an opportunity to educate me on PCOS, and that was just not an accurate message: Missing periods can lead to other serious, life-threatening health conditions.” 

    During the consultation with the endocrinologist, Ottey was told to lose weight and come back in six months. “Again, I felt dismissed and left up to my own devices to understand this condition and how to manage it,” she says. 

    Following that experience, Ottey began researching and found that thousands of people around the world had similar experiences with their PCOS diagnoses, which led her to start and lead the advocacy and support organization PCOS Challenge

    PCOS is the most common hormonal condition affecting people with ovaries of reproductive age. In the United States, one in 10 women of childbearing age have the condition, which affects the endocrine and reproductive systems and is a common cause of infertility. Yet, the condition is significantly underdiagnosed—especially among people of color—and under-researched

    Read on to find out more about PCOS, what symptoms to look out for, what treatments are available, and useful resources. 

    What is PCOS, and what are its most common symptoms? 

    PCOS is a chronic hormonal condition that affects how the ovaries work. A hormonal imbalance causes people with PCOS to have too much testosterone, the male sex hormone, which can make their periods irregular and cause hirsutism (extra hair), explains Dr. Melanie Cree, associate professor at the University of Colorado School of Medicine and director of the Multi-Disciplinary PCOS clinic at Children’s Hospital Colorado. 

    This means that people can have excess facial or body hair or experience hair loss. 

    PCOS also impacts the relationship between insulin—the hormone released when we eat—and testosterone. 

    “In women with PCOS, it seems like their ovaries are sensitive to insulin, and so when their ovaries see insulin, [they] make extra testosterone,” Cree adds. “So things that affect insulin levels [like sugary drinks] can affect testosterone levels.”

    Other common symptoms associated with PCOS include:

    • Acne
    • Thinning hair
    • Skin tags or excess skin in the armpits or neck 
    • Ovaries with many cysts
    • Infertility
    • Anxiety, depression, and other mental health conditions
    • Sleep apnea, a condition where breathing stops and restarts while sleeping

    What causes PCOS?

    The cause is still unknown, but researchers have found that the condition is genetic and can be inherited. Experts have found that exposure to harmful chemicals like PFAs, which can be present in drinking water, and BPA, commonly used in plastics, can also increase the risk for PCOS

    Studies have shown that “BPA can change how the endocrine system develops in a developing fetus … and that women with PCOS tend to also have more BPA in their bodies,” adds Dr. Felice Gersh, an OB-GYN and founder and director of the Integrative Medical Group of Irvine, which treats patients with PCOS. 

    How is PCOS diagnosed?

    PCOS is diagnosed through a physical exam; a conversation with your health care provider about your symptoms and medical history; a blood test to measure your hormone levels; and, in some cases, an ultrasound to see your ovaries. 

    PCOS is what’s known as a “diagnosis of exclusion,” Ottey says, meaning that the provider must rule out other conditions, such as thyroid disease, before diagnosing it. 

    Why isn’t more known about PCOS?

    Research on PCOS has been scarce, underfunded, and narrowly focused. Research on the condition has largely focused on the reproductive system, Ottey says, even though it also affects many aspects of a person’s life, including their mental health, appearance, metabolism, and weight. 

    “There is the point of getting pregnant, and the struggle to get pregnant for so many people,” Ottey adds. “[And] once that happens, [the condition] also impacts your ability to carry a healthy pregnancy, to have healthy babies. But outside of that, your metabolic health is at risk from having PCOS, your mental health is at risk, [and] overall health and quality of life, they’re all impacted by PCOS.” 

    People with PCOS are more likely to develop other serious health issues, like high blood pressure, heart problems, high cholesterol, uterine cancer, and diabetes. Cree says that teenagers with PCOS and obesity have “an 18-fold higher risk of type 2 diabetes” in their teens and that teenagers who get type 2 diabetes are starting to die in their late 20s and early 30s. 

    What are some treatments for PCOS?

    There is still no single medication approved by the Food and Drug Administration specifically for PCOS, though advocacy groups like PCOS Challenge are working with the agency to incorporate patient experiences and testimonials into a possible future treatment. Treatment depends on what symptoms you experience and what your main concerns are.

    For now, treatment options include the following:

    • Birth control: Your provider may prescribe birth control pills to lower testosterone levels and regulate your menstrual cycle. 
    • Lifestyle changes: Because testosterone can affect insulin levels, Cree explains that regardless of a patient’s weight, a diet with lower simple carbohydrates (such as candy, sugar, sweets, juices, sodas, and coffee drinks) is recommended.

      “When you have a large amount of sugar like that, especially as a liquid, it gets into your bloodstream very quickly,” adds Cree. “And so you then release a ton of insulin that goes to the ovary, and you make a bunch of testosterone.” 


      More exercise is also recommended for both weight loss and weight maintenance, Cree says: “Food changes and better activity work directly to lower insulin, to lower testosterone.”


    • Metformin: Even though it’s a medication for type 2 diabetes, it’s used in patients with PCOS because it can reduce insulin levels, and as a result, lower testosterone levels. 

    What should I keep in mind if I have (or think I may have) PCOS?

    If your periods are irregular or you have acne, facial hair, or hair loss, tell your provider—it could be a sign that you have PCOS or another condition. And ask questions.

    “I call periods a vital sign for women, if you’re not taking hormones,” Cree says. “Our bodies are really smart: Periods are to get pregnant, and if our body senses that we’re not healthy enough to get pregnant, then we don’t have periods. That means we’ve got to figure out why.” 

    Once you’re diagnosed, Ottey recommends that you “don’t go through extremes, yo-yo dieting, or trying to achieve massive weight loss—it only rebounds.” 

    She adds that “when you get this diagnosis, [there’s] a lot that might feel like it’s being taken away from you: ‘Don’t do this. Don’t eat this. Don’t do that.’ But what I want everyone to think of is what brings you joy, and do more of that and incorporate a lot of healthy activities into your life.” 

    Resources for PCOS patients:

    For more information, talk to your health care provider.

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

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