11 Things That Can Change Your Eye Color
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Eye color is generally considered so static that iris scans are considered a reasonable security method. However, it can indeed change—mostly for reasons you won’t want, though:
Ringing the changes
Putting aside any wishes of being a manga protagonist with violet eyes, here are the self-changing options:
- Aging in babies: babies are often born with lighter eyes, which can darken as melanocytes develop during the first few months of life. This is similar to how a small child’s blonde hair can often be much darker by the time puberty hits!
- Aging in adults: eyes may continue to darken until adulthood, while aging into the elderly years can cause them to lighten due to conditions like arcus senilis
- Horner’s syndrome: a nerve disorder that can cause the eyes to become lighter due to loss of pigment
- Fuchs heterochromic iridocyclitis: an inflammation of the iris that leads to lighter eyes over time
- Pigment dispersion syndrome: the iris rubs against eye fibers, leading to pigment loss and lighter eyes
- Kayser-Fleischer rings: excess copper deposits on the cornea, often due to Wilson’s disease, causing larger-than-usual brown or grayish rings around the iris
- Iris melanoma: a rare cancer that can darken the iris, often presenting as brown spots
- Cancer treatments: chemotherapy for retinoblastoma in children can result in lighter eye color and heterochromia
- Medications: prostaglandin-based glaucoma treatments can darken the iris, with up to 23% of patients seeing this effect
- Vitiligo: an autoimmune disorder that destroys melanocytes, mostly noticed in the skin, but also causing patchy loss of pigment in the iris
- Emotional and pupil size changes: emotions and trauma can affect pupil size, making eyes appear darker or lighter temporarily by altering how much of the iris is visible
For more about all these, and some notes about more voluntary changes (if you have certain kinds of eye surgery), enjoy:
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Want to learn more?
You might also like to read:
Understanding And Slowing The Progression Of Cataracts
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Stay off My Operating Table – by Dr. Philip Ovadia
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With heart disease as the #1 killer worldwide, and 88% of adults being metabolically unhealthy (leading cause of heart disease), this is serious!
Rather than taking a “quick fix” advise-and-go approach, Dr. Ovadia puts the knowledge and tools in our hands to do better in the long term.
As a heart surgeon himself, his motto here is:
❝What foods to put on your table so you don’t end up on mine❞
There’s a lot more to this book than the simple “eat the Mediterranean diet”:
- While the Mediterranean diet is generally considered the top choice for heart health, he also advises on how to eat healthily on all manner of diets… Carnivore, Keto, Paleo, Atkins, Gluten-Free, Vegan, you-name-it.
- A lot of the book is given to clearing up common misconceptions, things that sounded plausible but are just plain dangerous. This information alone is worth the price of the book, we think.
- There’s also a section given over to explaining the markers of metabolic health, so you can monitor yourself effectively
- Rather than one-size-fits-all, he also talks about common health conditions and medications that may change what you need to be doing
- He also offers advice about navigating the health system to get what you need—including dealing with unhelpful doctors!
Bottom line: A very comprehensive (yet readable!) manual of heart health.
Get your copy of Stay Off My Operating Table from Amazon today!
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Do we really need to burp babies? Here’s what the research says
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Parents are often advised to burp their babies after feeding them. Some people think burping after feeding is important to reduce or prevent discomfort crying, or to reduce how much a baby regurgitates milk after a feed.
It is true babies, like adults, swallow air when they eat. Burping releases this air from the top part of our digestive tracts. So when a baby cries after a feed, many assume it’s because the child needs to “be burped”. However, this is not necessarily true.
Why do babies cry or ‘spit up’ after a feed?
Babies cry for a whole host of reasons that have nothing to do with “trapped air”.
They cry when they are hungry, cold, hot, scared, tired, lonely, overwhelmed, needing adult help to calm, in discomfort or pain, or for no identifiable reason. In fact, we have a name for crying with no known cause; it’s called “colic”.
“Spitting up” – where a baby gently regurgitates a bit of milk after a feed – is common because the muscle at the top of a newborn baby’s stomach is not fully mature. This means what goes down can all too easily go back up.
Spitting up frequently happens when a baby’s stomach is very full, there is pressure on their tummy or they are picked up after lying down.
Spitting up after feeding decreases as babies get older. Three-quarters of babies one month old spit up after feeding at least once a day. Only half of babies still spit up at five months and almost all (96%) stop by their first birthdays.
There’s not much research out there on ‘burping’ babies. antoniodiaz/Shutterstock Does burping help reduce crying or spitting up?
Despite parents being advised to burp their babies, there’s not much research evidence on the topic.
One study conducted in India encouraged caregivers of 35 newborns to burp their babies, while caregivers of 36 newborns were not given any information about burping.
For the next three months, mothers and caregivers recorded whether their baby would spit up after feeding and whether they showed signs of intense crying.
This study found burping did not reduce crying and actually increased spitting up.
When should I be concerned about spitting up or crying?
Most crying and spitting up is normal. However, these behaviours are not:
- refusing to feed
- vomiting so much milk weight gain is slow
- coughing or wheezing distress while feeding
- bloody vomit.
If your baby has any of these symptoms, see a doctor or child health nurse.
If your baby seems unbothered by vomiting and does not have any other symptoms it is a laundry problem rather than something that needs medical attention.
It is also normal for babies to cry and fuss quite a lot; two hours a day, for about the first six weeks is the average.
This has usually reduced to about one hour a day by the time they are three months of age.
Crying more than this doesn’t necessarily mean there is something wrong. The intense, inconsolable crying of colic is experienced by up to one-quarter of young babies but goes away with time on its own .
If your baby is crying more than average or if you are worried there might be something wrong, you should see your doctor or child health nurse.
If your baby likes being ‘burped’, then it’s OK to do it. But don’t stress if you skip it. Miljan Zivkovic/Shutterstock Not everyone burps their baby
Burping babies seems to be traditional practice in some parts of the world and not in others.
For example, research in Indonesia found most breastfeeding mothers rarely or never burped their babies after feeding.
One factor that may influence whether a culture encourages burping babies may be related to another aspect of infant care: how much babies are carried.
Carrying a baby in a sling or baby carrier can reduce the amount of time babies cry.
Babies who are carried upright on their mother or another caregiver’s front undoubtedly find comfort in that closeness and movement.
Babies in slings are also being held firmly and upright, which would help any swallowed air to rise up and escape via a burp if needed.
Using slings can make caring for a baby easier. Studies (including randomised controlled trials) have also shown women have lower rates of post-natal depression and breastfeed for longer when they use a baby sling.
It is important baby carriers and slings are used safely, so make sure you’re up to date on the latest advice on how to do it.
So, should I burp my baby?
The bottom line is: it’s up to you.
Gently burping a baby is not harmful. If you feel burping is helpful to your baby, then keep doing what you’re doing.
If trying to burp your baby after every feed is stressing you or your baby out, then you don’t have to keep doing it.
Karleen Gribble, Adjunct Associate Professor, School of Nursing and Midwifery, Western Sydney University and Nina Jane Chad, Research Fellow, University of Sydney School of Public Health, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Age & Aging: What Can (And Can’t) We Do About It?
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How old do you want to be?
We asked you how old you are, and got an interesting spread of answers. This wasn’t too surprising; of course we have a general idea of who our readership is and we write accordingly.
What’s interesting is the gap for “40s”.
And, this wasn’t the case of a broken poll button, it’s something that crops up a lot in health-related sociological research. People who are most interested in taking extra care of their body are often:
- Younger people full of optimism about maintaining this perfectly healthy body forever
- Older people realizing “if I don’t want to suffer avoidable parts of age-related decline, now is the time to address these things”
In between, we often have a gap whereby people no longer have the optimism of youth, but do not yet feel the pressure of older age.
Which is not to say there aren’t 40-somethings who do care! Indeed, we know for a fact we have some subscribers in their 40s (and some in their 90s, too), just, they evidently didn’t vote in this poll.
Anyway, let’s bust some myths…
Aging is inevitable: True or False?
False, probably. That seems like a bold (and fortune-telling) claim, so let’s flip it to deconstruct it more logically:
Aging is, and always will be, unstoppable: True or False?
That has to be “False, probably”. To say “true” now sounds like an even bolder claim. Just like “the moon will always be out of reach”.
- When CPR was first developed, first-aiders were arrested for “interfering with a corpse”.
- Many diseases used to be death sentences that are now “take one of these in the morning”
- If you think this is an appeal to distant history, HIV+ status was a death sentence in the 90s. Now it’s “take one of these in the morning”.
But, this is an appeal to the past, and that’s not always a guarantee of the future. Where does the science stand currently? How is the research and development doing on slowing, halting, reversing aging?
We can slow aging: True or False?
True! There’s a difference between chronological age (i.e., how much time has passed while we’ve been alive) and biological age (i.e., what our diverse markers of aging look like).
Biological age often gets talked about as a simplified number, but it’s more complex than that, as we can age in different ways at different rates, for example:
- Visual markers of aging (e.g. wrinkles, graying hair)
- Performative markers of aging (e.g. mobility tests)
- Internal functional markers of aging (e.g. tests for cognitive decline, eyesight, hearing, etc)
- Cellular markers or aging (e.g. telomere length)
- …and more, but we only have so much room here
There are things we can do to slow most of those, including:
- Good nutrition (e.g. collagen and lutein, to keep specific parts of the body functioning “like those of a younger person” ranging from the joints to the eyes and brain)
- Anti-oxidant activity (e.g. eating anti-oxidant foods, supplementing with anti-oxidants or other things that mitigate oxidative stress, and avoiding foods that hasten oxidative stress which causes many kinds of aging)
- Getting good sleep (not to be underestimated for its restorative importance)
- Taking care of our cognitive health
- Taking care of our mental health (especially: reducing stress)
- Taking care of our mobility (prevention is better than cure!)
In the case of cognitive decline particularly, check out our previous article:
How To Reduce Your Alzheimer’s Risk
It’s too early to worry about… / It’s too late to do anything about… True or False?
False and False!
Many things that affect our health later in life are based on early-life choices and events. So it’s important for young people to take advantage of that. The earlier one adopts a healthy lifestyle, the better, because, and hold onto your hats for the shocker here: aging is cumulative.
However, that doesn’t mean that taking up healthy practices (or dropping unhealthy ones) is pointless later in life, even in one’s 70s and beyond!
Read about this and more from the National Institute of Aging:
What Do We Know About Healthy Aging?
We can halt aging: True or False?
False, for now at least. Our bodies are not statues; they are living organisms, constantly rebuilding themselves, constantly changing, every second of every day, for better or for worse. Every healthy or unhealthy choice you make, every beneficial or adverse experience you encounter, affects your body on a cellular level.
Your body never, ever, stops changing for as long as you live.
But…
We can reverse aging: True or False?
True! Contingently and with limitations, for now at least.
Remember what we said about your body constantly rebuilding itself? That goes for making itself better as well as making itself worse.
- If yesterday you couldn’t touch your toes and today you can, congratulations, you just got younger by a biological marker of aging.
- If you stopped drinking/smoking/eating a certain way last year, and this year your skin has fewer wrinkles, congratulations, you got younger by a biological marker of aging.
- If you’ve been exercising and now your heart rate variability and VO2 max are better than last month, congratulations, you got younger by a biological marker aging.
- If you took supplements that reduce and/or mitigate oxidative stress (e.g. resveratrol, CoQ10, l-theanine, etc), and you took up intermittent fasting, and now your telomeres are longer than they were six months ago, congratulations, you got younger by a biological marker of aging.
But those aren’t really being younger, we’ll still die when our time is up: True or False?
False and True, respectively.
Those kinds of things are really being younger, biologically. What else do you think being biologically younger is?
We may indeed die when our time is up, but (unless we suffer fatal accident or incident first) “when our time is up” is something that is decided mostly by the above factors.
Genetics—the closest thing we have to biological “fate”—accounts for only about 25% of our longevity-related health*.
Genes predispose, but they don’t predetermine.
*Read more: Human longevity: Genetics or Lifestyle? It takes two to tango
(from the Journal of Immunity and Ageing)
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High Histamine Foods To Avoid (And Low Histamine Foods To Eat Instead)
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Nour Zibdeh is an Integrative and Functional Dietician, and she helps people overcome food intolerances. Today, it’s about getting rid of the underdiagnosed condition that is histamine intolerance, by first eliminating the triggers, and then not getting stuck on the low-histamine diet
The recommendations
High histamine foods to avoid include:
- Alcohol (all types)
- Fermented foods—normally great for the gut, but bad in this case
- That includes most cheeses and yogurts
- Aged, cured, or otherwise preserved meat
- Some plants, e.g. tomato, spinach, eggplant, banana, avocado. Again, normally all great, but not in this case.
Low histamine foods to eat include:
- Fruits and vegetables not mentioned above
- Minimally processed meat and fish, either fresh from the butcher/fishmonger, or frozen (not from the chilled food section of the supermarket), and eaten the same day they were purchased or defrosted, because otherwise histamine builds up over time (and quite quickly)
- Grains, but she recommends skipping gluten, given the high likelihood of a comorbid gluten intolerance. So instead she recommends for example quinoa, oats, rice, buckwheat, millet, etc.
For more about these (and more examples), as well as how to then phase safely off the low histamine diet, enjoy:
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Further reading
Food intolerances often gang up on a person (i.e., comorbidity is high), so you might also like to read about:
- Gluten: What’s The Truth?
- Fiber For FODMAP-Avoiders
- Foods For Managing Hypothyroidism (incl. Hashimoto’s)
- Crohn’s, Food Intolerances, & More
Take care!
Don’t Forget…
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Generation M – by Dr. Jessica Shepherd
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Menopause is something that very few people are adequately prepared for despite its predictability, and also something that very many people then neglect to take seriously enough.
Dr. Shepherd encourages a more proactive approach throughout all stages of menopause and beyond; she discusses “the preseason, the main event, and the after-party” (perimenopause, menopause, and postmenopause), which is important, because typically people take up an interest in perimenopause, are treating it like a marathon by menopause, and when it comes to postmenopause, it’s easy to think “well, that’s behind me now”, and it’s not, because untreated menopause will continue to have (mostly deleterious) cumulative effects until death.
As for HRT, there’s a chapter on that of course, going into quite some detail. There is also plenty of attention given to popular concerns such as managing weight changes and libido changes, as well as oft-neglected topics such as brain changes, as well as things considered more cosmetic but that can have a big impact on mental health, such as skin and hair.
The style throughout is pop-science; friendly without skimping on detail and including plenty of good science.
Bottom line: if you’d like a fairly comprehensive overview of the changes that occur from perimenopause all the way to menopause and well beyond, then this is a great book for that.
Click here to check out Generation M, and live well at every stage of life!
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The Sprout Book – by Doug Evans
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Sprouting seeds are more nutritious than most people think, and “seeds” is also a much broader category than people think. Beyond even chia and sunflower and such, this book bids us remember that onions do not just appear on supermarket shelves fully formed (to give just one example of many); most plants come from seeds and of those, most can be usefully sprouted.
The author, most well-known for his tech companies, here is selling us a very low-tech health kick with very little profit to be found except for our health. By sprouting seeds of many kinds at home, we can enjoy powerful superfoods that are not only better than, but also cheaper than, most supplements.
Nor are the benefits of sprouting things marginal; we’re not talking about a 1–10% increase in bioavailable so much as what’s often a 100–1000% increase.
After explaining the science and giving a primer on sprouting things for oneself, there is a wide selection of recipes, but the biggest benefit of the book is in just getting the reader up-and-running with at-home sprouting.
Bottom line: if you like the idea of letting food be your medicine and even like the idea of essentially growing your own food with zero gardening skills, then this is an excellent book for you.
Don’t Forget…
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