154 million lives saved in 50 years: 5 charts on the global success of vaccines
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We know vaccines have been a miracle for public health. Now, new research led by the World Health Organization has found vaccines have saved an estimated 154 million lives in the past 50 years from 14 different diseases. Most of these have been children under five, and around two-thirds children under one year old.
In 1974 the World Health Assembly launched the Expanded Programme on Immunization with the goal to vaccinate all children against diphtheria, tetanus, pertussis (whooping cough), measles, polio, tuberculosis and smallpox by 1990. The program was subsequently expanded to include several other diseases.
The modelling, marking 50 years since this program was established, shows a child aged under ten has about a 40% greater chance of living until their next birthday, compared to if we didn’t have vaccines. And these positive effects can be seen well into adult life. A 50-year-old has a 16% greater chance of celebrating their next birthday thanks to vaccines.
What the study did
The researchers developed mathematical and statistical models which took in vaccine coverage data and population numbers from 194 countries for the years 1974–2024. Not all diseases were included (for example smallpox, which was eradicated in 1980, was left out).
The analysis includes vaccines for 14 diseases, with 11 of these included in the Expanded Programme on Immunization. For some countries, additional vaccines such as Japanese encephalitis, meningitis A and yellow fever were included, as these diseases contribute to major disease burden in certain settings.
The models were used to simulate how diseases would have spread from 1974 to now, as vaccines were introduced, for each country and age group, incorporating data on increasing vaccine coverage over time.
Children are the greatest beneficiaries of vaccines
Since 1974, the rates of deaths in children before their first birthday has more than halved. The researchers calculated almost 40% of this reduction is due to vaccines.
The effects have been greatest for children born in the 1980s because of the intensive efforts made globally to reduce the burden of diseases like measles, polio and whooping cough.
Some 60% of the 154 million lives saved would have been lives lost to measles. This is likely due to its ability to spread rapidly. One person with measles can spread the infection to 12–18 people.
The study also found some variation across different parts of the world. For example, vaccination programs have had a much greater impact on the probability of children living longer across low- and middle-income countries and settings with weaker health systems such as the eastern Mediterranean and African regions. These results highlight the important role vaccines play in promoting health equity.
Vaccine success is not assured
Low or declining vaccine coverage can lead to epidemics which can devastate communities and overwhelm health systems.
Notably, the COVID pandemic saw an overall decline in measles vaccine coverage, with 86% of children having received their first dose in 2019 to 83% in 2022. This is concerning because very high levels of vaccination coverage (more than 95%) are required to achieve herd immunity against measles.
In Australia, the coverage for childhood vaccines, including measles, mumps and rubella, has declined compared to before the pandemic.
This study is a reminder of why we need to continue to vaccinate – not just against measles, but against all diseases we have safe and effective vaccines for.
The results of this research don’t tell us the full story about the impact of vaccines. For example, the authors didn’t include data for some vaccines such as COVID and HPV (human papillomavirus). Also, like with all modelling studies, there are some uncertainties, as data was not available for all time periods and countries.
Nonetheless, the results show the success of global vaccination programs over time. If we want to continue to see lives saved, we need to keep investing in vaccination locally, regionally and globally.
Meru Sheel, Associate Professor and Epidemiologist, Infectious Diseases, Immunisation and Emergencies Group, Sydney School of Public Health, University of Sydney and Alexandra Hogan, Mathematical epidemiologist, UNSW Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Immune System Recovery Plan – by Dr. Susan Blum
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The subtitle of the book is “A Doctor’s 4-Step Program to Treat Autoimmune Disease”, so we’ll not keep the four steps a secret; they are:
- Using food as medicine
- Understanding the stress connection
- Healing your gut and digestive system
- Optimizing liver function
Each of these sections gives a primer in the relevant science, worksheets for personalizing your own plan to your own situation, condition, and goals, and of course lots of practical advice.
This is important and perhaps the book’s greatest strength, since there are dozens of possible autoimmune conditions, and getting a professional diagnosis is often a long, arduous process. So while this book can’t necessarily speed that up, what it can do is give you a good head-start on managing your symptoms based on things that are most likely to help, and certainly, there will be no harm trying.
While it’s not primarily a recipe book, there are also recipes targeting each part of the whole, as well as an extensive herb and supplement guide, before getting into lots of additional resources.
Bottom line: if you are, or suspect you are, suffering from an autoimmune condition, the information in this book can make your life a lot easier.
Click here to check out The Immune System Recovery Plan, and help yours to help you!
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What is reformer pilates? And is it worth the cost?
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Reformer pilates is steadily growing in popularity, with new studios opening regularly in major cities all over the world.
But what exactly is reformer pilates? And how does it compare with regular pilates and other types of exercise?
Classes aren’t cheap so let’s look at the potential benefits and drawbacks to help you decide if it’s right for you.
Ahmet Kurt/Unsplash Pilates with special equipment
Pilates is a mode of exercise that focuses on core stability and flexibility, while also addressing muscular strength and endurance, balance and general fitness. At first glance, it might look a bit like yoga, with some more traditional weight training components thrown in.
Reformer pilates uses a piece of equipment called a “reformer”. This looks like a narrow bed that slides along a carriage, has straps to hold onto, and has adjustable springs that add resistance to movement. You perform pilates on the reformer to target specific muscle groups and movement patterns.
The reformer was first designed to help people recover from injuries. However, it has now become common for general fitness and even sports performance.
Unlike normal pilates, also known as “mat pilates”, which only uses your body weight, the reformer adds resistance, meaning you can change the difficulty according to your current level of fitness.
This not only provides a way to overload your muscles, but can make the exercise session more aerobically demanding, which has been proposed to improve cardiovascular fitness.
Mat pilates uses your body weight. Kampus Productions/Pexels What are the benefits of reformer pilates?
Despite being around for decades, there is surprisingly little research looking at the benefits of reformer pilates. However, what we have seen so far suggests it has a similar effect to other modes of exercise.
Reformer pilates has been shown to help with weight loss, cause some small increases in muscle mass, and enhance cognitive function. All of these benefits are commonly seen when combining weight training and cardio into the same routine.
Similarly, among older adults, it has been shown to improve strength, enhance flexibility and may even reduce the risk of falling.
From a rehabilitation perspective, there is some evidence indicating reformer pilates can improve shoulder health and function, reduce lower back pain and increase flexibility.
Finally, there is some evidence suggesting a single session of reformer pilates can improve two key markers of cardiovascular health, being flow-mediated dilation and pulse wave velocity, while also improving cholesterol and insulin levels. This suggests reformer pilates could lead to long-term improvements in heart and metabolic health, although more research is needed to confirm this.
Reformer pilates was first designed to help people recover from injuries. Kampus Productions/Pexels However, there are some key things to consider when discussing these benefits. Most of this research is quite exploratory and comes from a very small number of studies. So we do not know whether these findings will apply to everyone.
Very few studies compared reformer pilates to other types of exercise. Therefore, while it can improve most aspects of health and function, it’s unlikely reformer pilates provides the optimal mode of exercise for each individual component of physical fitness.
Traditional weight training, for example, will likely cause larger improvements in strength than reformer pilates. Similarly, stretching will probably make you more flexible. And running or cycling will make you fitter.
However, if you want a type of exercise that gives you broad overall health benefits, it could be a good option.
What are the downsides of reformer pilates
Reformer pilates is not for everyone.
First and foremost, classes can be expensive compared to other fitness options. You need to be doing at least two to three sessions per week of any type of exercise to maximise the benefits. So even if you can find a class for A$20 or $30, paying for two or three classes a week (or buying a weekly or monthly subscription) is a significant outlay.
Second, it’s not as accessible as other exercise. Even if you can afford it, not every town or suburb has a reformer pilates studio.
Cost and access are major barriers. Or you might get better results with specific modes of exercises. Karolina Grabowska/Pexels Third, the effectiveness of your workout is likely to be impacted by how competent your instructor is. There are a host of different pilates qualifications you can get in Australia, and some take much less time than others. With this in mind, it might be best to look for accredited pilates instructors, although this will further reduce the number of options you have available.
Finally, there is a learning curve. While you will get better over time, the exercise will likely be less effective during those first few weeks (or months) when you are getting used to the machine and the movements.
Is it right for you?
Reformer pilates can be a great addition to your fitness routine, especially if you’re looking for a low-impact way to build strength and flexibility.
But if you have more specific goals, you might need a more specific mode of exercise. For example, if you need to get stronger to improve your ability to manage your daily life, then strength training is probably your best bet. Likewise, if your goal is to run a marathon, you will get more specific benefits from running.
The cost and availability of reformer pilates make it less accessible for some people. With this in mind, if you are after similar benefits at a lower price point, mat pilates might be a better option. Not only does it have evidence suggesting it can improve strength and fitness, but it is something you can do at home if you find a good resource (YouTube could be a good starting point here).
Hunter Bennett, Lecturer in Exercise Science, University of South Australia; Jacinta Brinsley, Exercise Physiologist and Postdoctoral Researcher in the Alliance for Research in Nutrition, Exercise and Activity, University of South Australia, and Lewis Ingram, Lecturer in Physiotherapy, University of South Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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How can I stop overthinking everything? A clinical psychologist offers solutions
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As a clinical psychologist, I often have clients say they are having trouble with thoughts “on a loop” in their head, which they find difficult to manage.
While rumination and overthinking are often considered the same thing, they are slightly different (though linked). Rumination is having thoughts on repeat in our minds. This can lead to overthinking – analysing those thoughts without finding solutions or solving the problem.
It’s like a vinyl record playing the same part of the song over and over. With a record, this is usually because of a scratch. Why we overthink is a little more complicated.
We’re on the lookout for threats
Our brains are hardwired to look for threats, to make a plan to address those threats and keep us safe. Those perceived threats may be based on past experiences, or may be the “what ifs” we imagine could happen in the future.
Our “what ifs” are usually negative outcomes. These are what we call “hot thoughts” – they bring up a lot of emotion (particularly sadness, worry or anger), which means we can easily get stuck on those thoughts and keep going over them.
However, because they are about things that have either already happened or might happen in the future (but are not happening now), we cannot fix the problem, so we keep going over the same thoughts.
Who overthinks?
Most people find themselves in situations at one time or another when they overthink.
Some people are more likely to ruminate. People who have had prior challenges or experienced trauma may have come to expect threats and look for them more than people who have not had adversities.
Deep thinkers, people who are prone to anxiety or low mood, and those who are sensitive or feel emotions deeply are also more likely to ruminate and overthink.
We all overthink from time to time, but some people are more prone to rumination.
BĀBI/UnsplashAlso, when we are stressed, our emotions tend to be stronger and last longer, and our thoughts can be less accurate, which means we can get stuck on thoughts more than we would usually.
Being run down or physically unwell can also mean our thoughts are harder to tackle and manage.
Acknowledge your feelings
When thoughts go on repeat, it is helpful to use both emotion-focused and problem-focused strategies.
Being emotion-focused means figuring out how we feel about something and addressing those feelings. For example, we might feel regret, anger or sadness about something that has happened, or worry about something that might happen.
Acknowledging those emotions, using self-care techniques and accessing social support to talk about and manage your feelings will be helpful.
The second part is being problem-focused. Looking at what you would do differently (if the thoughts are about something from your past) and making a plan for dealing with future possibilities your thoughts are raising.
But it is difficult to plan for all eventualities, so this strategy has limited usefulness.
What is more helpful is to make a plan for one or two of the more likely possibilities and accept there may be things that happen you haven’t thought of.
Think about why these thoughts are showing up
Our feelings and experiences are information; it is important to ask what this information is telling you and why these thoughts are showing up now.
For example, university has just started again. Parents of high school leavers might be lying awake at night (which is when rumination and overthinking is common) worrying about their young person.
Think of what the information is telling you.
TheVisualsYouNeed/ShutterstockKnowing how you would respond to some more likely possibilities (such as they will need money, they might be lonely or homesick) might be helpful.
But overthinking is also a sign of a new stage in both your lives, and needing to accept less control over your child’s choices and lives, while wanting the best for them. Recognising this means you can also talk about those feelings with others.
Let the thoughts go
A useful way to manage rumination or overthinking is “change, accept, and let go”.
Challenge and change aspects of your thoughts where you can. For example, the chance that your young person will run out of money and have no food and starve (overthinking tends to lead to your brain coming up with catastrophic outcomes!) is not likely.
You could plan to check in with your child regularly about how they are coping financially and encourage them to access budgeting support from university services.
Your thoughts are just ideas. They are not necessarily true or accurate, but when we overthink and have them on repeat, they can start to feel true because they become familiar. Coming up with a more realistic thought can help stop the loop of the unhelpful thought.
Accepting your emotions and finding ways to manage those (good self-care, social support, communication with those close to you) will also be helpful. As will accepting that life inevitably involves a lack of complete control over outcomes and possibilities life may throw at us. What we do have control over is our reactions and behaviours.
Remember, you have a 100% success rate of getting through challenges up until this point. You might have wanted to do things differently (and can plan to do that) but nevertheless, you coped and got through.
So, the last part is letting go of the need to know exactly how things will turn out, and believing in your ability (and sometimes others’) to cope.
What else can you do?
A stressed out and tired brain will be more likely to overthink, leading to more stress and creating a cycle that can affect your wellbeing.
So it’s important to manage your stress levels by eating and sleeping well, moving your body, doing things you enjoy, seeing people you care about, and doing things that fuel your soul and spirit.
Find ways to manage your stress levels.
antoniodiaz/ShutterstockDistraction – with pleasurable activities and people who bring you joy – can also get your thoughts off repeat.
If you do find overthinking is affecting your life, and your levels of anxiety are rising or your mood is dropping (your sleep, appetite and enjoyment of life and people is being negatively affected), it might be time to talk to someone and get some strategies to manage.
When things become too difficult to manage yourself (or with the help of those close to you), a therapist can provide tools that have been proven to be helpful. Some helpful tools to manage worry and your thoughts can also be found here.
When you find yourself overthinking, think about why you are having “hot thoughts”, acknowledge your feelings and do some future-focused problem solving. But also accept life can be unpredictable and focus on having faith in your ability to cope.
Kirsty Ross, Associate Professor and Senior Clinical Psychologist, Massey University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Exercises for Sciatica Pain Relief
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Jessica Valant is a physiotherapist and Pilates teacher, and today she’s going to demonstrate some exercise that relieve (and also correct the cause of) sciatica pain.
Back to good health
You will need a large strap for one of these exercises; a Pilates strap is great, but you can also use a towel. The exercises are:
Pelvic Rocking Exercise:
- Lie on your back, feet flat, knees bent.
- Gently rock your pelvis forwards and backwards (50% effort, no glute squeezing).
Leg Stretch with Strap:
- Straighten your left leg and loop the strap around the ball of your right foot.
- Gently straighten and bend your right leg while holding the strap.
- Perform a “nerve glide” by flexing and pointing your foot (not a stretch, just gentle movement).
- Repeat on the left leg.
Piriformis Stretch:
- Bend your right knee and place your left ankle over it (figure-four position).
- For a deeper stretch, hold your right thigh and pull your legs inwards.
Lower Back Release:
- Let your legs fall gently to one side after stretching each leg, opening the lower back.
Back Extension:
- Lie on your belly, placing your elbows down, palms flat.
- Optional: push up slightly into a back bend if it feels comfortable.
Seated Stretching:
- Finish by sitting cross-legged or on a chair.
- Inhale while raising your arms up, exhale while lowering them down, then reach sideways with your arms to stretch.
- Perform gentle neck stretches by tilting your ear to your shoulder on each side.
She recommends doing these exercises daily for at least a few weeks, though you should start to see improvement in your symptoms immediately. Nothing here should cause a problem or make things worse, but if it does, stop immediately and consult a local physiotherapist for more personalized advice.
For more on all of this, plus visual demonstrations, enjoy:
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Want to learn more?
You might also like to read:
6 Ways To Look After Your Back
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TED-x | Sugar Is Not A Treat
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Dr. Jody Stanislaw offers a reframe:
Not so sweet
The pancreas isn’t an organ that most people think about a lot, but it regulates blood sugar levels by releasing insulin as needed. Overworking the beta cells in the pancreas that do this, can lead to their burnout, which contributes to prediabetes and type 2 diabetes.
If, like Dr. Stanislaw, you already have Type 1 Diabetes (an autoimmune condition usually diagnosed in early childhood and unrelated to what one has or hasn’t been eating), then your pancreas is already not doing much, or rather, it’s too busy fighting itself to actually do its job. This means that taking exogenous insulin (i.e., from the pharmacy rather than from your dysfunctional pancreas) will be necessary for survival. Most people with T1D will have an insulin pump if possible, to provide insulin as needed. Others will rely on injections.
So, does that mean that T1D is a free pass on the diabetes-related health risks of sugar, since after all, you already have diabetes anyway?
Nope, no such luck. Because in the case of T1D, if you then get insulin resistance on top of the fact you don’t make your own insulin, then the insulin that you are taking will stop working, and ultimately you will die. So, that’s pretty important to avoid!
Thus, Dr. Stanislaw has strong opinions on diet in this regard, and she recommends her own protocol regardless of whether you are diabetic or not:
- Avoid refined carbs (e.g. bread, pasta, or foods with added sugars).
- Start the day with protein-rich foods for balanced blood sugar.
- Drink water to curb sugar cravings caused by dehydration.
- Use low-carb substitutes (e.g. cauliflower pizza crust, zucchini noodles, etc).
While Dr. Stanislaw does recommend an 80:20 approach to eating in general (80% healthy foods, 20% indulgences), she does strongly suggest not putting sugar even into the “indulgences” 20%, because a) a diet of 20% sugar is not at all good, and b) the dangers of sugar consumption are particularly high, so it is better reframed not as a treat to be enjoyed, but rather as a threat to be avoided.
For more on all of this, enjoy:
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You might also like to read:
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Kava vs Anxiety
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Kava, sometimes also called “kava kava” but we’re just going to call it kava once for the sake of brevity, is a heart-shaped herb that
bestows the powers of the Black Pantheris popularly enjoyed for its anxiolytic (anxiety-reducing) effects. Despite the similarity of the name in many languages, it is unrelated to coffee (except insofar as they are both plants), and its botanical name is Piper methysticum.Does it work?
Yes! At least in the short-term; more on that later.
Firstly, you may be wondering how it works; it works by its potentiation of GABA receptors in the brain. GABA (or gamma-aminobutyric acid, to give it its full name), as you may recall, is a neurotransmitter that is associated with feelings of calm; we wrote about it here:
So, what does “potentiation of GABA receptors” mean? It means… Scientists don’t for 100% sure know how it works yet, but it does make GABA receptors fire more. It’s possible that to some degree GABA fits the “molecular lock” of the receptors and causes them to say “GABA is here”; it’s also possible that they just make them more sensitive to the real GABA that is there, or there could be another explanation as yet undiscovered. Either way, it means that taking kava has a similar effect to having increased GABA levels in the brain:
As for how much to use, 20–300mg appears to be an effective dose, and most sources recommend 80–250mg:
Kava as a Clinical Nutrient: Promises and Challenges
This review of clinical trials found that it was more effective than placebo in only 3 of 7 trials; specifically, it was beneficial in the short-term and not in the long-term. For these reasons, the researchers concluded:
❝Kava Kava appears to be a short-term treatment for anxiety, but not a replacement for prolonged anti-anxiety use. Although not witnessed in this review, liver toxicity is especially possible if taken longer than 8 weeks.❞
Another review of clinical trials found better results over the course of 11 clinical trials, though again, short-term treatment only was considered to be where the “safe and effective” claim can be placed:
❝Compared with placebo, kava extract appears to be an effective symptomatic treatment option for anxiety. The data available from the reviewed studies suggest that kava is relatively safe for short-term treatment (1 to 24 weeks), although more information is required. Further rigorous investigations, particularly into the long-term safety profile of kava are warrant❞
Source: Kava extract for treating anxiety
Is it safe?
Nope! It has been associated with liver damage:
The likely main mechanism of toxicity is that it simply monopolizes the liver’s metabolic abilities, meaning that while it’s metabolizing the kava, it’s not metabolizing other things (such as alcohol or other medications), which will then build up, and potentially overwhelm the liver:
Constituents in kava extracts potentially involved in hepatotoxicity: a review
However, traditionally-prepared kava has not had the same effect as modern extracts; at first it seemed the difference was the traditional aqueous extracts vs modern acetonic/ethanolic extracts, but eventually that was found not to be the case, as toxicity occurred with industrial aqueous extracts too. The conclusion so far is that it is about the quality of the source ingredients, and the problems inherent to mass-production:
Meanwhile, short-term use doesn’t seem to have this problem, if you’re not drinking alcohol or taking medications that affect the liver:
Mechanisms/risk factors – kava-associated hepatotoxicity ← you’ll need to scroll down to 4.2.4 to read about this
Want to try it?
If the potential for hepatotoxicity doesn’t put you off, here’s an example product on Amazon ← we do not recommend it, but we are not the boss of you, and maybe you’re confident about your liver and want to use it only very short-term?
Take care!
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