What’s the difference between Alzheimer’s and dementia?
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What’s the difference? is a new editorial product that explains the similarities and differences between commonly confused health and medical terms, and why they matter.
Changes in thinking and memory as we age can occur for a variety of reasons. These changes are not always cause for concern. But when they begin to disrupt daily life, it could indicate the first signs of dementia.
Another term that can crop up when we’re talking about dementia is Alzheimer’s disease, or Alzheimer’s for short.
So what’s the difference?
What is dementia?
Dementia is an umbrella term used to describe a range of syndromes that result in changes in memory, thinking and/or behaviour due to degeneration in the brain.
To meet the criteria for dementia these changes must be sufficiently pronounced to interfere with usual activities and are present in at least two different aspects of thinking or memory.
For example, someone might have trouble remembering to pay bills and become lost in previously familiar areas.
It’s less-well known that dementia can also occur in children. This is due to progressive brain damage associated with more than 100 rare genetic disorders. This can result in similar cognitive changes as we see in adults.
So what’s Alzheimer’s then?
Alzheimer’s is the most common type of dementia, accounting for about 60-80% of cases.
So it’s not surprising many people use the terms dementia and Alzheimer’s interchangeably.
Changes in memory are the most common sign of Alzheimer’s and it’s what the public most often associates with it. For instance, someone with Alzheimer’s may have trouble recalling recent events or keeping track of what day or month it is.
We still don’t know exactly what causes Alzheimer’s. However, we do know it is associated with a build-up in the brain of two types of protein called amyloid-β and tau.
While we all have some amyloid-β, when too much builds up in the brain it clumps together, forming plaques in the spaces between cells. These plaques cause damage (inflammation) to surrounding brain cells and leads to disruption in tau. Tau forms part of the structure of brain cells but in Alzheimer’s tau proteins become “tangled”. This is toxic to the cells, causing them to die. A feedback loop is then thought to occur, triggering production of more amyloid-β and more abnormal tau, perpetuating damage to brain cells.
Alzheimer’s can also occur with other forms of dementia, such as vascular dementia. This combination is the most common example of a mixed dementia.
Vascular dementia
The second most common type of dementia is vascular dementia. This results from disrupted blood flow to the brain.
Because the changes in blood flow can occur throughout the brain, signs of vascular dementia can be more varied than the memory changes typically seen in Alzheimer’s.
For example, vascular dementia may present as general confusion, slowed thinking, or difficulty organising thoughts and actions.
Your risk of vascular dementia is greater if you have heart disease or high blood pressure.
Frontotemporal dementia
Some people may not realise that dementia can also affect behaviour and/or language. We see this in different forms of frontotemporal dementia.
The behavioural variant of frontotemporal dementia is the second most common form (after Alzheimer’s disease) of younger onset dementia (dementia in people under 65).
People living with this may have difficulties in interpreting and appropriately responding to social situations. For example, they may make uncharacteristically rude or offensive comments or invade people’s personal space.
Semantic dementia is also a type of frontotemporal dementia and results in difficulty with understanding the meaning of words and naming everyday objects.
Dementia with Lewy bodies
Dementia with Lewy bodies results from dysregulation of a different type of protein known as α-synuclein. We often see this in people with Parkinson’s disease.
So people with this type of dementia may have altered movement, such as a stooped posture, shuffling walk, and changes in handwriting. Other symptoms include changes in alertness, visual hallucinations and significant disruption to sleep.
Do I have dementia and if so, which type?
If you or someone close to you is concerned, the first thing to do is to speak to your GP. They will likely ask you some questions about your medical history and what changes you have noticed.
Sometimes it might not be clear if you have dementia when you first speak to your doctor. They may suggest you watch for changes or they may refer you to a specialist for further tests.
There is no single test to clearly show if you have dementia, or the type of dementia. A diagnosis comes after multiple tests, including brain scans, tests of memory and thinking, and consideration of how these changes impact your daily life.
Not knowing what is happening can be a challenging time so it is important to speak to someone about how you are feeling or to reach out to support services.
Dementia is diverse
As well as the different forms of dementia, everyone experiences dementia in different ways. For example, the speed dementia progresses varies a lot from person to person. Some people will continue to live well with dementia for some time while others may decline more quickly.
There is still significant stigma surrounding dementia. So by learning more about the various types of dementia and understanding differences in how dementia progresses we can all do our part to create a more dementia-friendly community.
The National Dementia Helpline (1800 100 500) provides information and support for people living with dementia and their carers. To learn more about dementia, you can take this free online course.
Nikki-Anne Wilson, Postdoctoral Research Fellow, Neuroscience Research Australia (NeuRA), UNSW Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Laziness Does Not Exist – by Dr. Devon Price
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Some cultures prize productivity as an ideal above most other things, and it’s certainly so in the US. Not only is this not great for mental health in general, but also—as Dr. Price explains—it’s based on a lie.
Generally speaking, when a person appears lazy there is something stopping them/you from doing better, and it’s not some mystical unseen force of laziness, not a set character trait, not a moral failing. Rather, the root cause may be physical, psychological, socioeconomic, or something else entirely.
Those causes can in some cases be overcome (for example, a little CBT can often set aside perfectionist anxiety that results in procrastination), and in some cases they can’t, at least on an individual level (disabilities often stubbornly remain disabling, and societal problems require societal solutions).
This matters for our mental health in areas well beyond the labor marketplace, of course, and these ideas extend to personal projects and even personal relationships. Whatever it is, if it’s leaving you exhausted, then probably something needs to be changed (even if the something is just “expectations”).
The book does offer practical solutions to all manner of such situations, improving what can be improved, making easier what can be made easier, and accepting what just needs to be accepted.
The style of this book is casual yet insightful and deep, easy-reading yet with all the acumen of an accomplished social psychologist.
Bottom line: if life leaves you exhausted, this book can be the antidote and cure
Click here to check out Laziness Does Not Exist, and break free!
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The Cancer Journey – by Dr. Chadi Nabhan
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After a brief introduction of what cancer actually is and what causes it, the layout of the rest of the book is in chronological order of patient experience, that is to say, what to expect during the journey from screening and diagnosis, to one’s first oncology visit (the author being an oncologist himself), how cancer staging works, getting second opinions, and a chapter-by-chapter review of many different treatment options, ranging from surgery and chemotherapy, to radiation and hormonal therapies, and even more modern targeted therapies, immunotherapy, cellular therapies, and yes, complementary and alternative therapies, amongst others we haven’t listed for the sake of brevity.
He doesn’t leave it there though; he also talks managing side effects, monitoring for recurrence, and even caring for the caregiver(s), along with eventual survivorship and that emotional journey, or if it comes down to it, palliative and hospice care.
Finishing on a hopeful note, he also brings attention to novel approaches that are being trialled presently, and the prospects for the near future of cancer care.
The style is very human and readable, notwithstanding that the author has hundreds of peer-reviewed publications to his name, the content here is presented in a much more approachable, less clinical way, while still conveying all the information that needs to be conveyed.
Bottom line: if you or a loved one is facing cancer, this book will be an invaluable resource.
Click here to check out The Cancer Journey, and understand each part of it!
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The Lupus Encyclopedia – by Dr. Donald Thomas
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First, a note on the authorship: while this is broadly by Donald E. Thomas Jr. MD FACP FACR, there were more contributors, namely:
Jemima Albayda, MD; Divya Angra, MD; Alan N. Baer, MD; Sasha Bernatsky, MD, PhD; George Bertsias, MD, PhD; Ashira D. Blazer, MD; Ian Bruce, MD; Jill Buyon, MD; Yashaar Chaichian, MD; Maria Chou, MD; Sharon Christie, Esq; Angelique N. Collamer, MD; Ashté Collins, MD; Caitlin O. Cruz, MD; Mark M. Cruz, MD; Dana DiRenzo, MD; Jess D. Edison, MD; Titilola Falasinnu, PhD; Andrea Fava, MD; Cheri Frey, MD; Neda F. Gould, PhD; Nishant Gupta, MD; Sarthak Gupta, MD; Sarfaraz Hasni, MD; David Hunt, MD; Mariana J. Kaplan, MD; Alfred Kim, MD; Deborah Lyu Kim, DO; Rukmini Konatalapalli, MD; Fotios Koumpouras, MD; Vasileios C. Kyttaris, MD; Jerik Leung, MPH; Hector A. Medina, MD; Timothy Niewold, MD; Julie Nusbaum, MD; Ginette Okoye, MD; Sarah L. Patterson, MD; Ziv Paz, MD; Darryn Potosky, MD; Rachel C. Robbins, MD; Neha S. Shah, MD; Matthew A. Sherman, MD; Yevgeniy Sheyn, MD; Julia F. Simard, ScD; Jonathan Solomon, MD; Rodger Stitt, MD; George Stojan, MD; Sangeeta Sule, MD; Barbara Taylor, CPPM, CRHC; George Tsokos, MD; Ian Ward, MD; Emma Weeding, MD; Arthur Weinstein, MD; Sean A. Whelton, MD
The reason we mention this is to render it clear that this isn’t one man’s opinions (as happens with many books about certain topics), but rather, a panel of that many doctors all agreeing that this is correct and good, evidence-based, up-to-date (as of the publication of this latest revised edition last year) information.
And if you have lupus, you’ll be aware there are a lot of doctors who don’t know a tremendous amount about it, hence the value of this “…for patients and healthcare providers” tome.
It is what it claims to be: a very comprehensive guide. It’s not light reading, and it is 848 pages of information-dense text and diagrams. If you want to know something, anything, about lupus, then if science knows it, then chances are it is in this book, or this book will at least point you directly to a paper you can read about your specific query.
The style is, nevertheless, about as readable for the layperson as possible, which is quite an achievement for a book with this amount of dense scientific information. For that, the author thanks his husband, for being the non-doctor beta-reader to screen it for readability—quite a service, with all those doctors writing!
Bottom line: if you or someone you love has lupus, this book should absolutely be in your collection.
Click here to check out The Lupus Encyclopedia, and have everything at your fingertips!
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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.
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.
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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Anti-Cholesterol Cardamom & Pistachio Porridge
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This tasty breakfast’s beta-glucan content binds to cholesterol and carries it out of the body; there are lots of other nutritional benefits too!
You will need
- 1 cup coconut milk
- ⅓ cup oats
- 4 tbsp crushed pistachios
- 6 cardamom pods, crushed
- 1 tsp rose water or 4 drops edible rose essential oil
- Optional sweetener: drizzle of honey or maple syrup
- Optional garnishes: rose petals, chopped nuts, dried fruit
Method
(we suggest you read everything at least once before doing anything)
1) Heat the coconut milk, adding the oats and crushed cardamom pods. Simmer for 5–10 minutes depending on how cooked you want the oats to be.
2) Stir in the crushed pistachio nuts, as well as the rose water.
3) Serve in a bowl, adding any optional toppings:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- The Best Kind Of Fiber For Overall Health? ← it’s beta-glucan, which is fund abundantly in oats
- Pistachios vs Pecans – Which is Healthier? ← have a guess
- Can Saturated Fats Be Healthy? ← coconut can!
Take care!
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Herring vs Sardines – Which is Healthier?
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Our Verdict
When comparing herring to sardine, we picked the sardines.
Why?
In terms of macros, they are about equal in protein and fat, but herring has about 2x the saturated fat and about 2x the cholesterol. So, sardines win this category easily.
When it comes to vitamins, herring has more of vitamins B1, B2, B6, B9, and B12, while sardines have more of vitamins B3, E, and K. That’s a 5:3 win for herring, although it’s worth mentioning that the margins of difference are mostly not huge, except for that sardines have 26x the vitamin K content. Still, by the overall numbers, this one’s a win for herring.
In the category of minerals, herring is not richer in any minerals*, while sardines are richer in calcium, copper, iron, manganese, phosphorus, and selenium, meaning a clear win for sardines.
*unless we want to consider mercury to be a mineral, in which case, let’s mention that on average, herring is 6x higher in mercury. However, we consider that also a win for sardines.
All in all, sardines are better for the heart (much lower in cholesterol), bones (much higher in calcium), and brain (much lower in mercury).
Want to learn more?
You might like to read:
Farmed Fish vs Wild Caught: Antibiotics, Mercury, & More
Take care!
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