Yes, we still need chickenpox vaccines
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For people who grew up before a vaccine was available, chickenpox is largely remembered as an unpleasant experience that almost every child suffered through. The highly contagious disease tore through communities, leaving behind more than a few lasting scars.
For many children, chickenpox was much more than a week or two of itchy discomfort. It was a serious and sometimes life-threatening infection.
Prior to the chickenpox vaccine’s introduction in 1995, 90 percent of children got chickenpox. Those children grew into adults with an increased risk of developing shingles, a disease caused by the same virus—varicella-zoster—as chickenpox, which lies dormant in the body for decades.
The vaccine changed all that, nearly wiping out chickenpox in the U.S. in under three decades. The vaccine has been so successful that some people falsely believe the disease no longer exists and that vaccination is unnecessary. This couldn’t be further from the truth.
Vaccination spares children and adults from the misery of chickenpox and the serious short- and long-term risks associated with the disease. The CDC estimates that 93 percent of children in the U.S. are fully vaccinated against chickenpox. However, outbreaks can still occur among unvaccinated and under-vaccinated populations.
Here are some of the many reasons why we still need chickenpox vaccines.
Chickenpox is more serious than you may remember
For most children, chickenpox lasts around a week. Symptoms vary in severity but typically include a rash of small, itchy blisters that scab over, fever, fatigue, and headache.
However, in one out of every 4,000 chickenpox cases, the virus infects the brain, causing swelling. If the varicella-zoster virus makes it to the part of the brain that controls balance and muscle movements, it can cause a temporary loss of muscle control in the limbs that can last for months. Chickenpox can also cause other serious complications, including skin, lung, and blood infections.
Prior to the U.S.’ approval of the vaccine in 1995, children accounted for most of the country’s chickenpox cases, with over 10,000 U.S. children hospitalized with chickenpox each year.
The chickenpox vaccine is very effective and safe
Chickenpox is an extremely contagious disease. People without immunity have a 90 percent chance of contracting the virus if exposed.
Fortunately, the chickenpox vaccine provides lifetime protection and is around 90 percent effective against infection and nearly 100 percent effective against severe illness. It also reduces the risk of developing shingles later in life.
In addition to being incredibly effective, the chickenpox vaccine is very safe, and serious side effects are extremely rare. Some people may experience mild side effects after vaccination, such as pain at the injection site and a low fever.
Although infection provides immunity against future chickenpox infections, letting children catch chickenpox to build up immunity is never worth the risk, especially when a safe vaccine is available. The purpose of vaccination is to gain immunity without serious risk.
The chickenpox vaccine is one of the greatest vaccine success stories in history
It’s difficult to overstate the impact of the chickenpox vaccine. Within five years of the U.S. beginning universal vaccination against chickenpox, the disease had declined by over 80 percent in some regions.
Nearly 30 years after the introduction of the chickenpox vaccine, the disease is almost completely wiped out. Cases and hospitalizations have plummeted by 97 percent, and chickenpox deaths among people under 20 are essentially nonexistent.
Thanks to the vaccine, in less than a generation, a disease that once swept through schools and affected nearly every child has been nearly eliminated. And, unlike vaccines introduced in the early 20th century, no one can argue that improved hygiene, sanitation, and health helped reduce chickenpox cases beginning in the 1990s.
Having chickenpox as a child puts you at risk of shingles later
Although most people recover from chickenpox within a week or two, the virus that causes the disease, varicella-zoster, remains dormant in the body. This latent virus can reactivate years after the original infection as shingles, a tingling or burning rash that can cause severe pain and nerve damage.
One in 10 people who have chickenpox will develop shingles later in life. The risk increases as people get older as well as for those with weakened immune systems.
Getting chickenpox as an adult can be deadly
Although chickenpox is generally considered a childhood disease, it can affect unvaccinated people of any age. In fact, adult chickenpox is far deadlier than pediatric cases.
Serious complications like pneumonia and brain swelling are more common in adults than in children with chickenpox. One in 400 adults who get chickenpox develops pneumonia, and one to two out of 1,000 develop brain swelling.
Vaccines have virtually eliminated chickenpox, but outbreaks still happen
Although the chickenpox vaccine has dramatically reduced the impact of a once widespread disease, declining immunity could lead to future outbreaks. A Centers for Disease Control and Prevention analysis found that chickenpox vaccination rates dropped in half of U.S. states in the 2022-2023 school year compared to the previous year. And more than a dozen states have immunization rates below 90 percent.
In 2024, New York City and Florida had chickenpox outbreaks that primarily affected unvaccinated and under-vaccinated children. With declining public confidence in routine vaccines and rising school vaccine exemption rates, these types of outbreaks will likely become more common.
The CDC recommends that children receive two chickenpox vaccine doses before age 6. Older children and adults who are unvaccinated and have never had chickenpox should also receive two doses of the vaccine.
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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Cranberry juice really can help with UTIs – and reduce reliance on antibiotics
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Cranberry juice has been used medicinally for centuries. Our new research indicates it should be a normal aspect of urinary tract infection (UTI) management today.
While some benefits of cranberry compounds for the prevention of UTIs have been suspected for some time, it hasn’t been clear whether the benefits from cranberry juice were simply from drinking more fluid, or something in the fruit itself.
For our study, published this week, we combined and collectively assessed 3,091 participants across more than 20 clinical trials.
Our analysis indicates that increasing liquids reduces the rate of UTIs compared with no treatment, but cranberry in liquid form is even better at reducing UTIs and antibiotic use.
Julie Falk/Flickr, CC BY-NC-ND Are UTIs really that bad?
Urinary tract infections affect more than 50% of women and 20% of men in their lifetime.
Most commonly, UTIs are caused from the bug called Escherichia coli (E.coli). This bug lives harmlessly in our intestines, but can cause infection in the urinary tract. This is why, particularly for women, it is recommended people wipe from front to back after using the toilet.
An untreated UTI can move up to the kidneys and cause even more serious illness.
Even when not managing infection, many people are anxious about contracting a UTI. Sexually active women, pregnant women and older women may all be at increased risk.
Why cranberries?
To cause a UTI, the bacteria need to attach to the wall of the urinary bladder. Increasing fluids helps to flush out bacteria before it attaches (or makes its way up into the bladder).
Some beneficial compounds in cranberry, such as proanthocyanidins (also called condensed tannins), prevent the bacteria from attaching to the wall itself.
While there are treatments, over 90% of the bugs that cause UTIs exhibit some form of microbial resistance. This suggests that they are rapidly changing and some cases of UTI might be left untreatable.
The juice of cranberries has long been thought to have infection-fighting properties. duckeesue/Shutterstock What we found
Our analysis showed a 54% lower rate of UTIs from cranberry juice consumption compared to no treatment. This means that significantly fewer participants who regularly consumed cranberry juice (most commonly around 200 millilitres each day) reported having a UTI during the periods assessed in the studies we analysed.
Cranberry juice was also linked to a 49% lower rate of antibiotic use than placebo liquid and a 59% lower rate than no treatment, based on analysis of indirect and direct effects across six studies. The use of cranberry compounds, whether in drinks or tablet form, also reduced the prevalence of symptoms associated with UTIs.
While some studies we included presented conflicts of interest (such as receiving funding from cranberry companies), we took this “high risk of bias” into account when analysing the data.
The study found extra hydration helped but not to the same extent as cranberry juice. Pixelshot/Shutterstock So, when can cranberry juice help?
We found three main benefits of cranberry juice for UTIs.
1. Reduced rates of infections
Increasing fluids (for example, drinking more water) reduced the prevalence of UTIs, and taking cranberry compounds (such as tablets) was also beneficial. But the most benefits were identified from increasing fluids and taking cranberry compounds at the same time, such as with cranberry juice.
2. Reduced use of antibiotics
The data shows cranberry juice lowers the need to use antibiotics by 59%. This was identified as fewer participants in randomised cranberry juice groups required antibiotics.
Increasing fluid intake also helped reduce antibiotic use (by 25%). But this was not as useful as increasing fluids at the same time as using cranberry compounds.
Cranberry compounds alone (such as tablets without associated increases in fluid intake) did not affect antibiotic use.
3. Reducing symptoms
Taking cranberry compounds (in any form, liquid or tablet) reduced the symptoms of UTIs, as measured in the overall data, by more than five times.
Take home advice
While cranberry juice cannot treat a UTI, it can certainly be part of UTI management.
If you suspect that you have a UTI, see your GP as soon as possible.
Christian Moro, Associate Professor of Science & Medicine, Bond University and Charlotte Phelps, Senior Teaching Fellow, Medical Program, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Beat The Heat, With Fat
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Surviving Summer
Summer is upon us, for those of us in the Northern Hemisphere anyway, and given that nowadays each year tends to be hotter than the one before, on average, it pays to be prepared.
We’ve talked about dealing with the heat before:
Sun, Sea, And Sudden Killers To Avoid
All the above advice stands this summer too, but today we’re going to speak a little extra on not having a “default body”.
For much of medical literature and common health advice, the default body is that of a slim and/or athletic white cis man aged 25–35 with no disabilities.
When it comes to “women’s health”, this is often confined to “the bikini zone” and everything else is commonly treated based on research conducted with men.
Today we’ll be looking at a particular challenge for a wide variety of people, when it comes to heat…
Beating the heat, with fat
If you are fat, and/or have a bit of a tummy, and/or have breasts, this one’s for you.
Fat acts as an insulator, which naturally does no favors in hot weather. Carrying the weight around is also extra exercise, which also becomes a problem in hot weather. Fat people usually sweat more than thin people do, as a result.
Sweat is great for cooling down the body, because it takes heat with it when it evaporates off. However, that only works if it can evaporate off, and it can’t evaporate off if it’s trapped in a skin fold / fat roll.
If you’re fat, you may have plenty of those; if you have a bit of a tummy (if you’re not fat generally, this might be a leftover from pregnancy, or weight loss, or something else; how it got there doesn’t matter for our purposes today), you’ll have at least one under it, and if you have breasts, unless they’re quite small, you’ll have one under each breast, and potentially your cleavage may become an issue too.
Note: if you are perhaps a man who has fat in the place where breasts go, then medically this goes for you too, except that there’s not a societal expectation that you wear bra. Use today’s information as you see fit.
Sweat-wicking hacks
We don’t want sweat to stay in those folds—both because then it’s not doing its cooling-down job, and also, because it can cause a rash, and even yeast infections and/or bacterial infections.
So, we want there to be some barrier there. You could use something like vaseline or baby powder, as to prevent chafing, but fat better (more effective, and less messy) is to have some kind of cloth there that can wick the sweat away.
There are made-for-purpose curved cotton bands that exist, called “tummy liners”; here’s an example product on Amazon, or you could make your own if you’re so inclined. They’re breathable, absorbent, and reduce friction too, making everything a lot more comfortable.
And for breasts? Same deal, there are made-for-purpose cotton bra-liners that exist; here’s an example product on Amazon, or again, you could make your own if you feel so inclined. The important part is that it makes things so much comfortable, because let’s face it: wearing a bra in the summer is not comfortable.
So with these, it can become more comfortable (and the cotton liners are flat, so they’re not visible if one’s wearing a t-shirt or similar-coverage garment). You could go braless, of course, but then you’re back to having sweaty folds, so if you’re doing something other than swimming or lying on your back, you might want something there.
Different hydration rules
“People should drink this much per day” and guess what, those guidelines were based on, drumroll please, not fat people.
Sweating more means needing to hydrate more, and even without breaking a sweat, having a larger body than average (be it muscle, fat, or both) means having more body to hydrate. That’s simple math.
So instead, a good general guideline is half an ounce of water per your weight in pounds, per day:
How much water do I need each day?
Another good general guideline is to simply drink “little and often”, that is to say, always have a (hydrating!) drink on the go.
Take care!
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Own Your Past Change Your Future – by Dr. John Delony
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This one is exactly what it says on the cover. It’s reminiscent in its premise of the more clinically-presented Tell Yourself A Better Lie (an excellent book, which we reviewed previously) but this time presented in a much more casual fashion.
Dr. Delony favors focusing on telling stories, and indeed this book contains many anecdotes. But also he bids the reader to examine our own stories—those we tell ourselves about ourselves, our past, people around us, and so forth.
To call those things “stories” may create a knee-jerk response of feeling like it is an accusation of dishonesty, but rather, it is acknowledging that experiences are subjective, and our framing of narratives can vary.
As for reframing things and taking control, his five-step-plan for doing such is:
- Acknowledge reality
- Get connected
- Change your thoughts
- Change your actions
- Seek redemption
…which each get a chapter devoted to them in the book.
You may notice that these are very similar to some of the steps in 12-step programs, and also some religious groups and/or self-improvement groups. In other words, this may not be the most original approach, but it is a tried-and-tested one.
Bottom line: if you feel like your life needs an overhaul, but don’t want to wade through a bunch of psychology to do it, then this book could be it for you.
Click here to check out Own Your Past To Change Your Future, and do just that!
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You’re Not Forgetful: How To Remember Everything
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Elizabeth Filips, medical student busy learning a lot of information, explains how in today’s video:
Active processing
An important thing to keep in mind is that forgetting is an active process, not passive as once believed. It has its own neurotransmitters and pathways, and as such, to improve memory, it’s essential to understand and manage forgetting.
So, how does forgetting occur? Memories are stored with cues or tags, which help retrieve information. However, overloading cues with too much information can cause “transient forgetting”—that is to say, the information is still in there somewhere; you just don’t have the filing system required to retrieve the data. This is the kind of thing that you will try hard to remember at some point in the day when you need it, fail, and then wake up at 3am with an “Aha!” because your brain finally found what you were looking for. So, to avoid that, use unique and strong cues to help improve recall (mnemonics are good for this, as are conceptual anchors).
While memory does not appear to actually be finite, there is some practical truth in the “finite storage” model insofar as learning new information can overwrite previous knowledge, iff your brain mistakes it for an update rather than addition. So for that reason, it’s good to periodically go over old information—in psychology this is called rehearsal, which may conjure theatrical images, but it can be as simple as mentally repeating a phone number, a mnemonic, or visually remembering a route one used to take to go somewhere.
Self-perception affects memory performance. Negative beliefs about one’s memory can worsen performance (so don’t say “I have a bad memory”, even to yourself, and in contrast, find more positive affirmations to make about your memory), and mental health in general plays a significant role in memory. For example, if you have ever had an extended period of depression, then chances are good you have some huge gaps in your memory for that time in your life.
A lot of what we learned in school was wrong—especially what we learned about learning. Traditional (vertical) learning is harder to retain, whereas horizontal learning (connecting topics through shared characteristics) creates stronger, interconnected memories. In short, your memories should tell contextual stories, not be isolated points of data.
Embarking on a new course of study? Yes? (If not, then why not? Pick something!)
It may be difficult at first, but experts memorize things more quickly due to built-up intuition in their field. For example a chess master can glance at a chess board for about 5 seconds and memorize the position—but only if the position is one that could reasonably arise in a game; if the pieces are just placed at random, then their memorization ability plummets to that of the average person, because their expertise has been nullified.
What this means in practical terms: building a “skeleton” framework before learning can enhance memorization through logical connections. For this reason, if embarking on a serious course of study, getting a good initial overview when you start is critical, so that you have a context for the rest of what you learn to go into. For example, let’s say you want to learn a language; if you first quickly do a very basic bare-bones course, such as from Duolingo or similar, then even though you’ll have a very small vocabulary and a modest grasp of grammar and make many mistakes and have a lot of holes in your knowledge, you now have somewhere to “fit” every new word or idea you learn. Same goes for other fields of study; for example, a doctor can be told about a new drug and remember everything about it immediately, because they understand the systems it interacts with, understand how it does what it does, and can compare it mentally to similar drugs, and they thus have a “place” in that overall system for the drug information to reside. But for someone who knows nothing about medicine, it’s just a lot of big words with no meaning. So: framework first, details later.
For more on all this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
How To Boost Your Memory Immediately (Without Supplements)
Take care!
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Trout vs Carp – Which is Healthier?
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Our Verdict
When comparing trout to carp, we picked the trout.
Why?
Both have their strong points!
In terms of macros, trout has slightly more protein and fat, and/but also has less cholesterol than carp. So, we pick the trout in the macros category.
In the category of vitamins, trout has much more of vitamins A, B1, B2, B3, B5, B6, B7, B12, C, D, E, K, and choline, while carp has slightly more vitamin B9. In other words, an easy win for trout here.
When it comes to minerals, however, trout has more potassium and selenium, while carp has more calcium, copper, iron, magnesium, manganese, phosphorus, and zinc. A fair win for carp this time.
You may be wondering about heavy metals: this will vary depending on location, as well as the age of the fish (younger fish have had less time to accumulate heavy metals than old ones, so if you’re visiting the fishmonger, choose the smaller ones) and the lives they have led (e.g. wild vs farmed), however, as a general rule of thumb, trout will generally have lower heavy metals levels than carp, all other things (e.g. location, age, etc) being equal.
In short, enjoy either or both in moderation, but trout wins on 3/4 categories today.
Want to learn more?
You might like to read:
Farmed Fish vs Wild Caught: Antibiotics, Mercury, & More
Take care!
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Chorus or Cacophony? Cicada Song Hits Some Ears Harder Than Others
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ST. LOUIS — Shhhooo. Wee-uuu. Chick, chick, chick. That’s the sound of three different cicada species. For some people, those sounds are the song of the summer. Others wish the insects would turn it down. The cacophony can be especially irritating for people on the autism spectrum who have hearing sensitivity.
Warren Rickly, 14, lives in suburban south St. Louis County, Missouri. Warren, who has autism, was at the bus stop recently waiting for his younger brother when the sound of cicadas became too much to bear.
“He said it sounds like there’s always a train running next to him,” his mother, Jamie Reed, said.
Warren told her the noise hurt.
Starting this spring, trillions of the red-eyed insects crawled their way out of the ground across the Midwest and Southeast. It’s part of a rare simultaneous emergence of two broods — one that appears every 13 years, the other every 17.
The noisy insects can be stressful. People with autism can have a sensitivity to texture, brightness, and sound.
“I think the difference for individuals with autism is the level of intensity or how upsetting some of these sensory differences are,” said Rachel Follmer, a developmental and behavioral pediatrician at Lurie Children’s Hospital in Chicago.
“It can get to the extreme where it can cause physical discomfort,” she said.
When a large group of cicadas starts to sing, the chorus can be as loud as a motorcycle. Researchers at the University of Missouri-St. Louis this year crowdsourced cicada noise levels as high as 86 decibels, about as loud as a food blender.
That can be stressful, not melodic, Follmer said.
To help children cope, she suggests giving them a primer before they encounter a noisy situation. For cicadas, that could mean explaining what they are, that they don’t bite or sting, and that they’ll be here for just a short time.
“When something is uncomfortable, not having power in that situation can be very scary for a lot of individuals, whether you’re on the spectrum or not,” Follmer said.
Jamie Reed’s family has been using this and other strategies to help her son. Warren wears noise-canceling headphones, listens to music, and has been teaching himself about cicadas.
“For him, researching it and looking into it I think grounds him a little bit,” Reed said.
Fatima Husain is a professor and neuroscientist at the University of Illinois Urbana-Champaign and studies how the brain processes sound. She said people with tinnitus may also struggle with cicada song.
Tinnitus, a ringing or other noise in the ears, is a person’s perception of sound without an external source.
“Some people say it sounds like buzzing, like wind blowing through trees, and ironically, quite a few people say it sounds like cicadas,” Husain said.
For most people with tinnitus the cicada’s song is harmless background noise, according to Husain, but for others the ringing can prevent easy conversation or sleep. Those with tinnitus are also more likely to have anxiety or depression. A loud persistent sound, like singing cicadas, can make someone’s tinnitus worse, Husain said.
It’s not always bad, though. The cicada’s song can also be a relief.
For some, tinnitus gets worse in a quiet environment. Husain said she’s seen reports this year of patients saying the cicadas’ song has been like soothing white noise.
“The sound is loud enough that in some ways it’s drowning their internal tinnitus,” Husain said.
As loud as the cicadas can be, they won’t necessarily damage anyone’s hearing, according to the Centers for Disease Control and Prevention. Hearing loss builds up over time from repeated exposure to loud sounds. Cicadas aren’t loud enough for long enough to do lasting damage, Husain said.
Everyday sources of noise come with a higher risk. Husain said constant exposure to loud highways, an airport, industrial sites, or household appliances like blenders and hair dryers can be a concern. And they can take a toll on someone’s emotional well-being.
“If you are being exposed to very loud sounds for a part of your school day or your working day, it may make you more stressed out; it may make you more angry about things,” she said.
Unlike the highway or an airport, cicadas won’t be around long. Most of the current brood will be gone in the next few weeks. Just in time for another noisy summer event: the Fourth of July.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
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