Two Awesome Hours – by Dr. Josh Davis
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The brain is an amazing and powerful organ, with theoretically unlimited potential in some respects. So why doesn’t it feel that way a lot of the time?
The truth is that not only are we often tired, dehydrated, or facing other obvious physiological challenges to peak brain health, but also… We’re simply not making the best use of it!
What Dr. Davis does is outline for us how we can create the conditions for “two awesome hours” of effective mental performance by:
- Recognizing when to most effectively flip the switch on our automatic thinking
- Scheduling tasks based on their “processing demand” and recovery time
- Learning how to direct attention, rather than avoid distractions
- Feeding and moving our bodies in ways that prep us for success
- Identifying what matters in our environment to be at the top of our mental game
Why only two hours? Why not four, or eight, or more?
Well, our brains need recovery time too, so we can’t be “always on” and operating and peak efficiency. But, what we can do is optimize a couple of hours for absolute peak efficiency, and then enjoy the rest of time with lower cognitive-load activities.
Bottom line: if the idea of what you could accomplish if you could just be guaranteed two schedulable hours (your preference when!) of peak cognitive performance per day, then this is a great book for you.
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To tackle gendered violence, we also need to look at drugs, trauma and mental health
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After several highly publicised alleged murders of women in Australia, the Albanese government this week pledged more than A$925 million over five years to address men’s violence towards women. This includes up to $5,000 to support those escaping violent relationships.
However, to reduce and prevent gender-based and intimate partner violence we also need to address the root causes and contributors. These include alcohol and other drugs, trauma and mental health issues.
Why is this crucial?
The World Health Organization estimates 30% of women globally have experienced intimate partner violence, gender-based violence or both. In Australia, 27% of women have experienced intimate partner violence by a co-habiting partner; almost 40% of Australian children are exposed to domestic violence.
By gender-based violence we mean violence or intentionally harmful behaviour directed at someone due to their gender. But intimate partner violence specifically refers to violence and abuse occurring between current (or former) romantic partners. Domestic violence can extend beyond intimate partners, to include other family members.
These statistics highlight the urgent need to address not just the aftermath of such violence, but also its roots, including the experiences and behaviours of perpetrators.
What’s the link with mental health, trauma and drugs?
The relationships between mental illness, drug use, traumatic experiences and violence are complex.
When we look specifically at the link between mental illness and violence, most people with mental illness will not become violent. But there is evidence people with serious mental illness can be more likely to become violent.
The use of alcohol and other drugs also increases the risk of domestic violence, including intimate partner violence.
About one in three intimate partner violence incidents involve alcohol. These are more likely to result in physical injury and hospitalisation. The risk of perpetrating violence is even higher for people with mental ill health who are also using alcohol or other drugs.
It’s also important to consider traumatic experiences. Most people who experience trauma do not commit violent acts, but there are high rates of trauma among people who become violent.
For example, experiences of childhood trauma (such as witnessing physical abuse) can increase the risk of perpetrating domestic violence as an adult.
Childhood trauma can leave its mark on adults years later. Roman Yanushevsky/Shutterstock Early traumatic experiences can affect the brain and body’s stress response, leading to heightened fear and perception of threat, and difficulty regulating emotions. This can result in aggressive responses when faced with conflict or stress.
This response to stress increases the risk of alcohol and drug problems, developing PTSD (post-traumatic stress disorder), and increases the risk of perpetrating intimate partner violence.
How can we address these overlapping issues?
We can reduce intimate partner violence by addressing these overlapping issues and tackling the root causes and contributors.
The early intervention and treatment of mental illness, trauma (including PTSD), and alcohol and other drug use, could help reduce violence. So extra investment for these are needed. We also need more investment to prevent mental health issues, and preventing alcohol and drug use disorders from developing in the first place.
Early intervention and treatment of mental illness, trauma and drug use is important. Okrasiuk/Shutterstock Preventing trauma from occuring and supporting those exposed is crucial to end what can often become a vicious cycle of intergenerational trauma and violence. Safe and supportive environments and relationships can protect children against mental health problems or further violence as they grow up and engage in their own intimate relationships.
We also need to acknowledge the widespread impact of trauma and its effects on mental health, drug use and violence. This needs to be integrated into policies and practices to reduce re-traumatising individuals.
How about programs for perpetrators?
Most existing standard intervention programs for perpetrators do not consider the links between trauma, mental health and perpetrating intimate partner violence. Such programs tend to have little or mixed effects on the behaviour of perpetrators.
But we could improve these programs with a coordinated approach including treating mental illness, drug use and trauma at the same time.
Such “multicomponent” programs show promise in meaningfully reducing violent behaviour. However, we need more rigorous and large-scale evaluations of how well they work.
What needs to happen next?
Supporting victim-survivors and improving interventions for perpetrators are both needed. However, intervening once violence has occurred is arguably too late.
We need to direct our efforts towards broader, holistic approaches to prevent and reduce intimate partner violence, including addressing the underlying contributors to violence we’ve outlined.
We also need to look more widely at preventing intimate partner violence and gendered violence.
We need developmentally appropriate education and skills-based programs for adolescents to prevent the emergence of unhealthy relationship patterns before they become established.
We also need to address the social determinants of health that contribute to violence. This includes improving access to affordable housing, employment opportunities and accessible health-care support and treatment options.
All these will be critical if we are to break the cycle of intimate partner violence and improve outcomes for victim-survivors.
The National Sexual Assault, Family and Domestic Violence Counselling Line – 1800 RESPECT (1800 737 732) – is available 24 hours a day, seven days a week for any Australian who has experienced, or is at risk of, family and domestic violence and/or sexual assault.
If this article has raised issues for you, or if you’re concerned about someone you know, call Lifeline on 13 11 14. In an emergency, call 000.
Siobhan O’Dean, Postdoctoral Research Associate, The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney; Lucinda Grummitt, Postdoctoral Research Fellow, The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, and Steph Kershaw, Research Fellow, The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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What To Leave Off Your Table (To Stay Off This Surgeon’s)
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Why we eat too much (and how we can fix that)
This is Dr. Andrew Jenkinson. He’s a Consultant Surgeon specializing in the treatment of obesity, gallstones, hernias, heartburn and abdominal pain. He runs regular clinics in both London and Dubai. What he has to offer us today, though, is insight as to what’s on our table that puts us on his table, and how we can quite easily change that up.
So, why do we eat too much?
First things first: some metabolic calculations. No, we’re not going to require you to grab a calculator here… Your body does it for you!
Our body’s amazing homeostatic system (the system that does its best to keep us in the “Goldilocks Zone” of all our bodily systems; not too hot or too cold, not dehydrated or overhydrated, not hyperglycemic or hypoglycemic, blood pressure not too high or too low, etc, etc) keeps track of our metabolic input and output.
What this means: if we increase or decrease our caloric consumption, our body will do its best to increase or decrease our metabolism accordingly:
- If we don’t give it enough energy, it will try to conserve energy (first by slowing our activities; eventually by shutting down organs in a last-ditch attempt to save the rest of us)
- If we give it too much energy, it will try to burn it off, and what it can’t burn, it will store
In short: if we eat 10% or 20% more or less than usual, our body will try to use 10% to 20% more or less than usual, accordingly.
So… How does this get out of balance?
The problem is in how our system does that, and how we inadvertently trick it, to our detriment.
For a system to function, it needs at its most base level two things—a sensor and a switch:
- A sensor: to know what’s going on
- A switch: to change what it’s doing accordingly
Now, if we eat the way we’re evolved to—as hunter-gatherers, eating mostly fruit and vegetables, supplemented by animal products when we can get them—then our body knows exactly what it’s eating, and how to respond accordingly.
Furthermore, that kind of food takes some eating! Most fruit these days is mostly water and fiber; in those days it often had denser fiber (before agricultural science made things easier to eat), but either way, our body knows when we are eating fruit and how to handle that. Vegetables, similarly. Unprocessed animal products, again, the gut goes “we know what this is” and responds accordingly.
But modern ultra-processed foods with trans-fatty acids, processed sugar and flour?
These foods zip calories straight into our bloodstream like greased lightning. We get them so quickly so easily and in such great caloric density, that our body doesn’t have the chance to count them on the way in!
What this means is: the body has no idea what it’s just consumed or how much or what to do with it, and doesn’t adjust our metabolism accordingly.
Bottom line:
Evolutionarily speaking, your body has no idea what ultra-processed food is. If you skip it and go for whole foods, you can, within the bounds of reason, eat what you like and your body will handle it by adjusting your metabolism accordingly.
Now, advising you “avoid ultra-processed foods and eat whole foods” was probably not a revelation in and of itself.
But: sometimes knowing a little more about the “why” makes the difference when it comes to motivation.
Want to know more about Dr. Jenkinson’s expert insights on this topic?
If you like, you can check out his website here—he has a book too
Why We Eat (Too Much) – Dr. Andrew Jenkinson on the Science of Appetite
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Things Many People Forget When It Comes To Hydration
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Good hydration is about more than just “drink lots of water”, and in fact it’s quite possible for a person to drink too much water, and at the same time, be dehydrated. Here’s how and why and what to do about it:
Water, water, everywhere
Factors that people forget:
- Electrolyte balance: without it, we can technically have lots of water while either retaining it (in the case of too high salt levels) or peeing it out (in the case of too low salt levels), neither of which are as helpful as getting it right and actually being able to use the water.
- Gastrointestinal health: conditions like IBS, Crohn’s, or celiac disease can impair water and nutrient absorption, affecting hydration
- Genetic factors: some people simply have a predisposition to need more or less water for proper hydration
- Dietary factors: high salt, caffeine, and alcohol intake (amongst other diuretics) can increase water loss, while water-rich foods (assuming they aren’t also diuretics) increase hydration.
Strategies to do better:
- Drink small amounts of water consistently throughout the day rather than large quantities at once—healthy kidneys can process about 1 liter (about 1 quart) of water per hour, so drinking more than that will not help, no matter how dehydrated you are when you start. If your kidneys aren’t in peak health, the amount processable per hour will be lower for you.
- Increase fiber intake (e.g., fruit and vegetables) to retain water in the intestines and improve hydration
- Consume water-rich foods (e.g., watermelon, cucumbers, grapes) to enhance overall hydration and support cellular function (the body can use this a lot more efficiently than if you just drink water).
- Counteract the diuretic effects of caffeine and alcohol by drinking an additional 12 oz of water for every 8 oz of these beverages. Best yet, don’t drink alcohol and keep caffeine to a low level (or quit entirely, if you prefer, but for most people that’s not necessary).
- If you are sweating (be it because of weather, exercise, or any other reasons), include electrolyte fluids to improve cellular hydration, as they contain essential minerals like magnesium, potassium, and in moderation yes even sodium which you will have lost in your sweat too, supporting fluid regulation.
For more details on all of these, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
- Water’s Counterintuitive Properties
- Hydration Mythbusting
- When To Take Electrolytes (And When We Shouldn’t!)
- Keeping Your Kidneys Healthy (Especially After 60)
Take care!
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Healing Cracked Fingers
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It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
❝Question. Suffer from cracked (split) finger tips in the cold weather. Very painful, is there something I can take to ward off this off. Appreciate your daily email.❞
Ouch, painful indeed! Aside from good hydration (which is something we easily forget in cold weather), there’s no known internal guard against this*, but from the outside, oil-based moisturizers are the way to go.
Olive oil, coconut oil, jojoba oil, and shea butter are all fine options.
If the skin is broken such that infection is possible, then starting with an antiseptic ointment/cream is sensible. A good example product is Savlon, unless you are allergic to its active ingredient chlorhexidine.
*However, if perchance you are also suffering from peripheral neuropathy (a common comorbidity of cracked skin in the extremities), then lion’s main mushroom can help with that.
Writer’s anecdote: I myself started suffering from peripheral neuropathy in my hands earlier this year, doubtlessly due to some old injuries of mine.
However, upon researching for the above articles, I was inspired to try lion’s mane mushroom for myself. I take it daily, and have now been free of symptoms of peripheral neuropathy for several months.
Here’s an example product on Amazon, by the way
Enjoy!
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Is white rice bad for me? Can I make it lower GI or healthier?
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Rice is a culinary staple in Australia and around the world.
It might seem like a given that brown rice is healthier than white and official public health resources often recommend brown rice instead of white as a “healthy swap”.
But Australians definitely prefer white rice over brown. So, what’s the difference, and what do we need to know when choosing rice?
Dragne Marius/Unsplash What makes rice white or brown?
Rice “grains” are technically seeds. A complete, whole rice seed is called a “paddy”, which has multiple parts:
- the “hull” is the hard outer layer which protects the seed
- the “bran”, which is a softer protective layer containing the seed coat
- the “germ” or the embryo, which is the part of the seed that would develop into a new plant if was germinated
- the “endosperm”, which makes up most of the seed and is essentially the store of nutrients that feeds the developing plant as a seed grows into a plant.
Rice needs to be processed for humans to eat it.
Along with cleaning and drying, the hard hulls are removed since we can’t digest them. This is how brown rice is made, with the other three parts of the rice remaining intact. This means brown rice is regarded as a “wholegrain”.
White rice, however, is a “refined” grain, as it is further polished to remove the bran and germ, leaving just the endosperm. This is a mechanical and not a chemical process.
What’s the difference, nutritionally?
Keeping the bran and the germ means brown rice has more magnesium, phosphorus, potassium B vitamins (niacin, folate, riboflavin and pyridoxine), iron, zinc and fibre.
The germ and the bran also contain more bioactives (compounds in foods that aren’t essential nutrients but have health benefits), like oryzanols and phenolic compounds which have antioxidant effects.
Brown rice is cleaned and dried and the hard hulls are removed. Sung Min/Shutterstock But that doesn’t mean white rice is just empty calories. It still contains vitamins, minerals and some fibre, and is low in fat and salt, and is naturally gluten-free.
White and brown rice actually have similar amounts of calories (or kilojoules) and total carbohydrates.
There are studies that show eating more white rice is linked to a higher risk of type 2 diabetes. But it is difficult to know if this is down to the rice itself, or other related factors such as socioeconomic variables or other dietary patterns.
What about the glycaemic index?
The higher fibre means brown rice has a lower glycaemic index (GI), meaning it raises blood sugar levels more slowly. But this is highly variable between different rices within the white and brown categories.
The GI system uses low (less than 55), medium (55–70) and high (above 70) categories. Brown rices fall into the low and medium categories. White rices fall in the medium and high.
There are specific low-GI types available for both white and brown types. You can also lower the GI of rice by heating and then cooling it. This process converts some of the “available carbohydrates” into “resistant starch”, which then functions like dietary fibre.
Are there any benefits to white rice?
The taste and textural qualities of white and brown rices differ. White rice tends to have a softer texture and more mild or neutral flavour. Brown rice has a chewier texture and nuttier flavour.
So, while you can technically substitute brown rice into most recipes, the experience will be different. Or other ingredients may need to be added or changed to create the desired texture.
Removing more of the outer layers may also reduce the levels of contaminants such as pesticides.
We don’t just eat rice
You’ll likely have vegetables and protein with your rice. Chay_Tee/Shutterstock Comparing white and brown rice seems like an easy way to boost nutritional value. But just because one food (brown rice) is more nutrient-dense doesn’t make the other food (white rice) “bad”.
Ultimately, it’s not often that we eat just rice, so we don’t need the rice we choose to be the perfect one. Rice is typically the staple base of a more complex dish. So, it’s probably more important to think about what we eat with rice.
Adding vegetables and lean proteins to rice-based dishes can easily add the micronutrients, bioactives and fibre that white rice is comparatively lacking, and this can likely do more to contribute to diet quality than eating brown rice instead.
Emma Beckett, Adjunct Senior Lecturer, Nutrition, Dietetics & Food Innovation – School of Health Sciences, UNSW Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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International Day of Women and Girls in Science
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Today is the International Day of Women and Girls in Science, so we’ve got a bunch of content for the ladies out there. Let’s start with the statement Sima Bahous (the Executive Director of UN Women) made:
❝This year, the sixty-seventh session of the Commission on the Status of Women (CSW67) will consider as its priority theme “Innovation and technological change, and education in the digital age for achieving gender equality and the empowerment of all women and girls”.
This is an unprecedented opportunity for the Commission to develop a definitive agenda for progress towards women’s full and equal participation and representation in STEM. Its implementation will require bold, coordinated, multi-stakeholder action.❞
Here at 10almonds, we are just one newsletter, and maybe we can’t change the world (…yet), but we’re all for this!
We’re certainly all in favour of education in the digital age, and more of our subscribers are women and girls than not (highest of fives from your writer today, also a woman—and I do bring most of the sciency content).
Medical News Today asks “Why Are Women Less Likely To Survive Cardiac Arrest Than Men?”
You can read the full article here, but the short version is:
- People (bystanders and EMS professionals alike!) are less likely to intervene to give CPR when the patient is a woman (we appreciate that “your hands on an unknown woman’s chest” is a social taboo, but there’s a time and a place!)
- People trained to give CPR (volunteers or professionals!) are often less confident about how to do so with female anatomy—training is almost entirely on “male” dummies.
A quick take-away from this is: to give effective CPR, you need to be giving two-inch compressions!
On a side note, do you want to learn how to correctly do chest compressions on female anatomy? This short (1:55) video could save a woman’s life!
As a science-based health and productivity newsletter, we make no apologies if occasional issues sometimes have a slant to women’s health! Heaven help us, the bias in science at large is certainly the opposite:
The list of examples is far too long for us to include here, but two that spring immediately to mind are:
- PCOS (Polycystic ovary syndrome), which affects nearly 1 in 5 women, can lead to infertility, never mind the inconvenience of irregular bleeding, chronic pain, and diabetes (amongst other things), and… nobody knows what causes it, or what to do about it.
- Endometriosis (the lining of the womb starts growing in other places), meanwhile, affects around 1 in 10 women. It causes chronic pain and fatigue, and again, nobody knows what causes it or how to cure it.
Maybe if women in STEM weren’t on the receiving end of rampant systemic misogyny, we’d have more women in science, and some answers by now!
❗️NOT-SO-FUN FACT:
Women make up only 28% of the workforce in science, technology, engineering and math (STEM), and men vastly outnumber women majoring in most STEM fields in college. The gender gaps are particularly high in some of the fastest-growing and highest-paid jobs of the future, like computer science and engineering.
Source: AAUW
The US census suggests change is happening, but is a very long way from equality!
WHAT OUR SUBSCRIBERS SAY:
❝Women are slowly gaining more of a place in academia, and slowly making more of a difference when they get there, and start doing research that reflects ourselves. But I still think that it’s a struggle to get there, and it’s a struggle to be heard and be respected.
It’s a matter of pride, it’s a matter of proving yourself, being in STEM, and [women in STEM] still report being extremely disrespected, not taken seriously all, despite being very very good.
It’s worth noting as well, that we’ve had women in STEM for a while and there are so many things we appreciate nowadays that they were a part of, but they were never given credit for—it’s still a problem today and something we need to more actively fight.❞
Isabella F. Lima, Occupational Psychologist
Are you a woman in STEM, and have a story to tell? We’d love to hear it! Just reply to this email 🙂
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