Carrot vs Sweet Potato – Which is Healthier?
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Our Verdict
When comparing carrot to sweet potato, we picked the sweet potato.
Why?
Both are great! But there’s a winner in the end:
Looking at the macros first, sweet potato has more protein carbs, and fiber, and is thus the “more food per food” item. If they are both cooked the same, then the glycemic index is comparable, despite the carrot’s carbs having more sucrose and the sweet potato’s carbs having more starch. We’ll call this category a tie.
In terms of vitamins, carrots have more of vitamins B9 and K, while sweet potatoes have more of vitamins B1, B2, B3, B5, B6. B7, C, E, and choline. Both are equally high in vitamin A. Thus, the vitamins category is an overwhelming win for sweet potato.
When it comes to minerals, carrots are not higher in any minerals (unless we count that they are slightly higher in sodium, but that is not generally considered a plus for most people in most places most of the time), while sweet potato is higher in calcium, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc. Another easy win for sweet potato.
Adding up the sections makes for a clear win for the sweet potato as the more nutritionally dense option, but as ever, enjoy either or both!
Want to learn more?
You might like to read:
What’s Your Plant Diversity Score?
Take care!
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We don’t all need regular skin cancer screening – but you can know your risk and check yourself
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Australia has one of the highest skin cancer rates globally, with nearly 19,000 Australians diagnosed with invasive melanoma – the most lethal type of skin cancer – each year.
While advanced melanoma can be fatal, it is highly treatable when detected early.
But Australian clinical practice guidelines and health authorities do not recommend screening for melanoma in the general population.
Given our reputation as the skin cancer capital of the world, why isn’t there a national screening program? Australia currently screens for breast, cervical and bowel cancer and will begin lung cancer screening in 2025.
It turns out the question of whether to screen everyone for melanoma and other skin cancers is complex. Here’s why.
Pixel-Shot/Shutterstock The current approach
On top of the 19,000 invasive melanoma diagnoses each year, around 28,000 people are diagnosed with in-situ melanoma.
In-situ melanoma refers to a very early stage melanoma where the cancerous cells are confined to the outer layer of the skin (the epidermis).
Instead of a blanket screening program, Australia promotes skin protection, skin awareness and regular skin checks (at least annually) for those at high risk.
About one in three Australian adults have had a clinical skin check within the past year.
Those with fairer skin or a family history may be at greater risk of skin cancer. Halfpoint/Shutterstock Why not just do skin checks for everyone?
The goal of screening is to find disease early, before symptoms appear, which helps save lives and reduce morbidity.
But there are a couple of reasons a national screening program is not yet in place.
We need to ask:
1. Does it save lives?
Many researchers would argue this is the goal of universal screening. But while universal skin cancer screening would likely lead to more melanoma diagnoses, this might not necessarily save lives. It could result in indolent (slow-growing) cancers being diagnosed that might have never caused harm. This is known as “overdiagnosis”.
Screening will pick up some cancers people could have safely lived with, if they didn’t know about them. The difficulty is in recognising which cancers are slow-growing and can be safely left alone.
Receiving a diagnosis causes stress and is more likely to lead to additional medical procedures (such as surgeries), which carry their own risks.
2. Is it value for money?
Implementing a nationwide screening program involves significant investment and resources. Its value to the health system would need to be calculated, to ensure this is the best use of resources.
Narrower targets for better results
Instead of screening everyone, targeting high-risk groups has shown better results. This focuses efforts where they’re needed most. Risk factors for skin cancer include fair skin, red hair, a history of sunburns, many moles and/or a family history.
Research has shown the public would be mostly accepting of a risk-tailored approach to screening for melanoma.
There are moves underway to establish a national targeted skin cancer screening program in Australia, with the government recently pledging $10.3 million to help tackle “the most common cancer in our sunburnt country, skin cancer” by focusing on those at greater risk.
Currently, Australian clinical practice guidelines recommend doctors properly evaluate all patients for their future risk of melanoma.
Looking with new technological eyes
Technological advances are improving the accuracy of skin cancer diagnosis and risk assessment.
For example, researchers are investigating 3D total body skin imaging to monitor changes to spots and moles over time.
Artificial intelligence (AI) algorithms can analyse images of skin lesions, and support doctors’ decision making.
Genetic testing can now identify risk markers for more personalised screening.
And telehealth has made remote consultations possible, increasing access to specialists, particularly in rural areas.
Check yourself – 4 things to look for
Skin cancer can affect all skin types, so it’s a good idea to become familiar with your own skin. The Skin Cancer College Australasia has introduced a guide called SCAN your skin, which tells people to look for skin spots or areas that are:
1. sore (scaly, itchy, bleeding, tender) and don’t heal within six weeks
2. changing in size, shape, colour or texture
3. abnormal for you and look different or feel different, or stand out when compared to your other spots and moles
4. new and have appeared on your skin recently. Any new moles or spots should be checked, especially if you are over 40.
If something seems different, make an appointment with your doctor.
You can self-assess your melanoma risk online via the Melanoma Institute Australia or QIMR Berghofer Medical Research Institute.
H. Peter Soyer, Professor of Dermatology, The University of Queensland; Anne Cust, Professor of Cancer Epidemiology, The Daffodil Centre and Melanoma Institute Australia, University of Sydney; Caitlin Horsham, Research Manager, The University of Queensland, and Monika Janda, Professor in Behavioural Science, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Exercise That Protects Your Brain
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The Neuroscientist In The Gym
This is Dr. Wendy Suzuki. She’s a neuroscientist, and an expert in the neurobiology of memory, as well as neuroplasticity, and the role of exercise in neuroprotection.
We’ve sneakily semi-featured her before when we shared her Big Think talk:
Brain Benefits In Three Months… Through Walking?
Today we’re going to expand on that a little!
A Quick Recap
To share the absolute key points of that already fairly streamlined rundown:
- Exercise boosts levels of neurotransmitters such as dopamine and serotonin (and, which wasn’t mentioned there, noradrenaline)
- These are responsible for motivation, happiness, and focus (amongst other things)
- Persistent exercise boosts certain regions of the brain in particular, most notably the pre-frontal cortex and the hippocampi*
- These are responsible for planning and memory (amongst other things)
Dr. Suzuki advocates for stepping up your exercise routine if you can, with more exercise generally being better than less (unless you have some special medical reason why that’s not the case for you).
*often referred to in the singular as the hippocampus, but you have one on each side of your brain (unless a serious accident/incident destroyed one, but you’ll know if that applies to you, unless you lost both, in which case you will not remember about it).
What kind(s) of workout?
While a varied workout is best for overall health, for these brain benefits specifically, what’s most important is that it raises your heart rate.
This is why in her Big Think talk we shared before, she talks about the benefits of taking a brisk walk daily. See also:
If that’s not your thing, though (and/or is for whatever reason an inaccessible form of exercise for you), there is almost certainly some kind of High Intensity Interval Training that is a possibility for you. That might sound intimidating, but if you have a bit of floor and can exercise for one minute at a time, then HIIT is an option for you:
How To Do HIIT (Without Wrecking Your Body)
Dr. Suzuki herself is an ardent fan of “intenSati” which blends cardio workouts with yoga for holistic mind-and-body fitness. In fact, she loves it so much that she became a certified exercise instructor:
How much is enough?
It’s natural to want to know the minimum we can do to get results, but Dr. Suzuki would like us to bear in mind that when it comes to our time spent exercising, it’s not so much an expense of time as an investment in time:
❝Exercise is something that when you spend time on it, it will buy you time when you start to work❞
Read more: A Neuroscientist Experimented on Her Students and Found a Powerful Way to Improve Brain Function
Ok, but we really want to know how much!
Dr. Suzuki recommends at least three to four 30-minute exercise sessions per week.
Note: this adds up to less than the recommended 150 minutes of moderate exercise per week, but high-intensity exercise counts for twice the minutes for these purposes, e.g. 1 minute of high-intensity exercise is worth 2 minutes of moderate exercise.
How soon will we see benefits?
Benefits start immediately, but stack up cumulatively with continued long-term exercise:
❝My lab showed that a single workout can improve your ability to shift and focus attention, and that focus improvement will last for at least two hours. ❞
…which is a great start, but what’s more exciting is…
❝The more you’re working out, the bigger and stronger your hippocampus and prefrontal cortex gets. Why is that important?
Because the prefrontal cortex and the hippocampus are the two areas that are most susceptible to neurodegenerative diseases and normal cognitive decline in aging. ❞
In other words, while improving your heart rate through regular exercise will help prevent neurodegeneration by the usual mechanism of reducing neuroinflammation… It’ll also build the parts of your brain most susceptible to decline, meaning that when/if decline sets in, it’ll take a lot longer to get to a critical level of degradation, because it had more to start with.
Read more:
Inspir Modern Senior Living | Dr. Wendy Suzuki Boosts Brain Health with Exercise
Want more from Dr. Suzuki?
You might enjoy her TED talk:
Click Here If The Embedded Video Doesn’t Load Automatically
Prefer text? TED.com has a transcript for you
Prefer lots of text? You might like her book, which we haven’t reviewed yet but will soon:
Enjoy!
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- Exercise boosts levels of neurotransmitters such as dopamine and serotonin (and, which wasn’t mentioned there, noradrenaline)
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Why We Sleep – by Dr Matthew Walker
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
- We all know sleep is important.
- We all know that without it, we’ll suffer rapid cognitive decline.
- We all know approximately what we’re supposed to do to get good sleep.
So what does this book bring to the table? Mostly, deep understanding (written from the perspective of a career in sleep science) presented in such a way as to be applicable, by you, in your life. Stop sabotaging yourself before you even get out of your bed in the morning!
Hustle culture champions early mornings and late nights, and either or both of those might be difficult to avoid. But to make what you’re doing sustainable, you’re going to have to make some informed decisions about looking after your #1 asset—you!
Dr. Walker writes in a clear and accessible fashion, without skimping on the hard science, and always with practical application in mind. All in all, we can’t recommend this one enough.
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The 7 Approaches To Pain Management
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More Than One Way To Kill Pain
This is Dr. Deepak Ravindran (MD, FRCA. FFPMRCA, EDRA. FIPP, DMSMed). He has decades of experience and is a specialist in acute and chronic pain management, anesthesia, musculoskeletal medicine, and lifestyle medicine.
A quick catch-up, first:
We’ve written about chronic pain management before:
Managing Chronic Pain (Realistically!)
As well as:
Science-Based Alternative Pain Relief
Dr. Ravindran’s approach
Dr. Ravindran takes a “trauma-informed care” approach to his professional practice, and recommends the same for others.
In a nutshell, this means starting from a position of not “what’s wrong with you?”, but rather “what happened to you?”.
This seemingly subtle shift is important, because it means actually dealing with a person’s issues, instead of “take one of these and call my secretary next month”. Read more:
Pain itself can be something of a many-headed hydra. Dr. Ravindran’s approach is equally many-headed; specifically, he has a 7-point plan:
Medications
Dr. Ravindran sees painkillers (and a collection of other drugs, like antidepressants and muscle relaxants) as a potential means to an end worth exploring, but he doesn’t expect them to be the best choice for everyone, and nor does he expect them to be a cure-all. Neither should we. He also advises being mindful of the drawbacks and potential complications of these drugs, too.
Interventions
Sometimes, surgery is the right choice. Sometimes it isn’t. Often, it will change a life—one way or the other. Similar to with medications, Dr. Ravindran is very averse to a “one size fits all” approach here. See also:
The Insider’s Guide To Making Hospital As Comfortable As Possible
Neuroscience and stress management
Often a lot of the distress of pain is not just the pain itself, but the fear associated with it. Will it get worse if I move wrong or eat the wrong thing? How long will it last? Will it ever get better? Will it get worse if I do nothing?. Dr. Ravindran advises tackling this, with the same level of importance as the pain itself. Here’s a good start:
Stress, And Building Psychological Resilience
Diet and the microbiome
Many chronic illnesses are heavily influenced by this, and Dr. Ravindran’s respect for lifestyle medicine comes into play here. While diet might not fix all our ills, it certainly can stop things from being a lot worse. Beyond the obvious “eat healthily” (Mediterranean diet being a good starting point for most people), he also advises doing elimination tests where appropriate, to screen out potential flare-up triggers. You also might consider:
Four Ways To Upgrade The Mediterranean Diet
Sleep
“Get good sleep” is easy advice for those who are not in agonizing pain that sometimes gets worse from staying in the same position for too long. Nevertheless, it is important, and foundational to good health. So it’s important to explore—whatever limitations one might realistically have—what can be done to improve it.
If you can only sleep for a short while at a time, you may get benefit from this previous main feature of ours:
How To Nap Like A Pro (No More “Sleep Hangovers”!)
Exercise and movement
The trick here is to move little and often; without overdoing it, but without permitting loss of mobility either. See also:
The Doctor Who Wants Us To Exercise Less, And Move More
Therapies of the mind and body
This is about taking a holistic approach to one’s wellness. In Dr. Ravindran’s words:
❝Mind-body therapies are often an extremely sensitive topic about which people hold very strong opinions and sometimes irrational beliefs.
Some, like reiki and spiritual therapy and homeopathy, have hardly any scientific evidence to back them up, while others like yoga, hypnosis, and meditation/mindfulness are mainstream techniques with many studies showing the benefits, but they all work for certain patients.❞
In other words: evidence-based is surely the best starting point, but if you feel inclined to try something else and it works for you, then it works for you. And that’s a win.
Want to know more?
You might like his book…
The Pain-Free Mindset: 7 Steps to Taking Control and Overcoming Chronic Pain
He also has a blog and a podcast.
Take care!
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Does intermittent fasting have benefits for our brain?
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Intermittent fasting has become a popular dietary approach to help people lose or manage their weight. It has also been promoted as a way to reset metabolism, control chronic disease, slow ageing and improve overall health.
Meanwhile, some research suggests intermittent fasting may offer a different way for the brain to access energy and provide protection against neurodegenerative diseases like Alzheimer’s disease.
This is not a new idea – the ancient Greeks believed fasting enhanced thinking. But what does the modern-day evidence say?
First, what is intermittent fasting?
Our diets – including calories consumed, macronutrient composition (the ratios of fats, protein and carbohydrates we eat) and when meals are consumed – are factors in our lifestyle we can change. People do this for cultural reasons, desired weight loss or potential health gains.
Intermittent fasting consists of short periods of calorie (energy) restriction where food intake is limited for 12 to 48 hours (usually 12 to 16 hours per day), followed by periods of normal food intake. The intermittent component means a re-occurrence of the pattern rather than a “one off” fast.
Food deprivation beyond 24 hours typically constitutes starvation. This is distinct from fasting due to its specific and potentially harmful biochemical alterations and nutrient deficiencies if continued for long periods.
4 ways fasting works and how it might affect the brain
The brain accounts for about 20% of the body’s energy consumption.
Here are four ways intermittent fasting can act on the body which could help explain its potential effects on the brain.
1. Ketosis
The goal of many intermittent fasting routines is to flip a “metabolic switch” to go from burning predominately carbohydrates to burning fat. This is called ketosis and typically occurs after 12–16 hours of fasting, when liver and glycogen stores are depleted. Ketones – chemicals produced by this metabolic process – become the preferred energy source for the brain.
Due to this being a slower metabolic process to produce energy and potential for lowering blood sugar levels, ketosis can cause symptoms of hunger, fatigue, nausea, low mood, irritability, constipation, headaches, and brain “fog”.
At the same time, as glucose metabolism in the brain declines with ageing, studies have shown ketones could provide an alternative energy source to preserve brain function and prevent age-related neurodegeneration disorders and cognitive decline.
Consistent with this, increasing ketones through supplementation or diet has been shown to improve cognition in adults with mild cognitive decline and those at risk of Alzheimer’s disease respectively.
2. Circadian syncing
Eating at times that don’t match our body’s natural daily rhythms can disrupt how our organs work. Studies in shift workers have suggested this might also make us more prone to chronic disease.
Time-restricted eating is when you eat your meals within a six to ten-hour window during the day when you’re most active. Time-restricted eating causes changes in expression of genes in tissue and helps the body during rest and activity.
A 2021 study of 883 adults in Italy indicated those who restricted their food intake to ten hours a day were less likely to have cognitive impairment compared to those eating without time restrictions.
Matching your eating to the active parts of your day may have brain benefits.
Shutterstock3. Mitochondria
Intermittent fasting may provide brain protection through improving mitochondrial function, metabolism and reducing oxidants.
Mitochondria’s main role is to produce energy and they are crucial to brain health. Many age-related diseases are closely related to an energy supply and demand imbalance, likely attributed to mitochondrial dysfunction during ageing.
Rodent studies suggest alternate day fasting or reducing calories by up to 40% might protect or improve brain mitochondrial function. But not all studies support this theory.
4. The gut-brain axis
The gut and the brain communicate with each other via the body’s nervous systems. The brain can influence how the gut feels (think about how you get “butterflies” in your tummy when nervous) and the gut can affect mood, cognition and mental health.
In mice, intermittent fasting has shown promise for improving brain health by increasing survival and formation of neurons (nerve cells) in the hippocampus brain region, which is involved in memory, learning and emotion.
What we eat can affect our brain, and vice versa.
ShutterstockThere’s no clear evidence on the effects of intermittent fasting on cognition in healthy adults. However one 2022 study interviewed 411 older adults and found lower meal frequency (less than three meals a day) was associated with reduced evidence of Alzheimer’s disease on brain imaging.
Some research has suggested calorie restriction may have a protective effect against Alzheimer’s disease by reducing oxidative stress and inflammation and promoting vascular health.
When we look at the effects of overall energy restriction (rather than intermittent fasting specifically) the evidence is mixed. Among people with mild cognitive impairment, one study showed cognitive improvement when participants followed a calorie restricted diet for 12 months.
Another study found a 25% calorie restriction was associated with slightly improved working memory in healthy adults. But a recent study, which looked at the impact of calorie restriction on spatial working memory, found no significant effect.
Bottom line
Studies in mice support a role for intermittent fasting in improving brain health and ageing, but few studies in humans exist, and the evidence we have is mixed.
Rapid weight loss associated with calorie restriction and intermittent fasting can lead to nutrient deficiencies, muscle loss, and decreased immune function, particularly in older adults whose nutritional needs may be higher.
Further, prolonged fasting or severe calorie restriction may pose risks such as fatigue, dizziness, and electrolyte imbalances, which could exacerbate existing health conditions.
If you’re considering intermittent fasting, it’s best to seek advice from a health professional such as a dietitian who can provide guidance on structuring fasting periods, meal timing, and nutrient intake. This ensures intermittent fasting is approached in a safe, sustainable way, tailored to individual needs and goals.
Hayley O’Neill, Assistant Professor, Faculty of Health Sciences and Medicine, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Almonds vs Walnuts – Which is Healthier?
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Our Verdict
When comparing almonds to walnuts, we picked the almonds.
Why?
It wasn’t just our almond bias, but it was close!
In terms of macros, the main important differences are:
- Almonds are higher in protein
- Walnuts are higher in fats (they are healthy fats)
So far, so even.
In terms of vitamins, both are rich in many vitamins; mostly the same ones. However, walnuts have more of most of the B vitamins (except for B2 and B3, where almonds win easily), and almonds have more vitamin E by several orders of magnitude.
So far, so balanced.
Almonds have slightly more choline.
Almonds have a better mineral profile, with more of most minerals that they both contain, and especially, a lot more calcium.
Both nuts have [sometimes slightly different, but] comparable benefits against diabetes, cancer, neurodegeneration, and other diseases.
In summary
This one’s close. After balancing out the various “almonds have this but walnuts have that” equal-but-different benefits, we’re going to say almonds take first place by virtue of the better mineral profile, and more choline.
But: enjoy both!
Learn more
You might like this previous article of ours:
Why You Should Diversify Your Nuts
Take care!
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