The Seven Sins Of Memory – by Dr. Daniel Schacter
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As we get older, we often become more forgetful—despite remembering many things clearly from decades past. Why?
Dr. Daniel Shacter takes us on a tour of the brain, and also through evolution, to show how memory is not just one thing, but many. And furthermore, it’s not just our vast memory that’s an evolutionary adaptation, but also, our capacity to forget.
He does also discusses disease that affect memory, including Alzheimer’s, and explores the biological aspects of memory too.
The “seven sins” of the title are seven ways our (undiseased, regular) memory “lets us down”, and why, and how that actually benefits us as individuals and as a species, and/but also how we can modify that if we so choose.
The book’s main strength is in how it separates—or bids us separate for ourselves—what is important to us and our lives and what is not. How and why memory and information processing are often at odds with each other (and what that means for us). And, on a practical note, how we can tip the scales for or against certain kinds of memory.
Bottom line: if you’d like to better understand human memory in all its glorious paradoxes, and put into place practical measures to make it work for you the way you want, this is a fine book for you.
Click here to check out The Seven Sins of Memory, and get managing yours!
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Hungry? How To Beat Cravings
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The Science of Hunger, And How To Sate It
This is Dr. David Ludwig. That’s not a typo; he’s a doctor both ways—MD and PhD.
Henceforth we’ll just say “Dr. Ludwig”, though! He’s a professor in the Department of Nutrition at Harvard T.H. Chan School of Public Health, and director of the New Balance Foundation Obesity Prevention Center.
His research focuses on the effects of diet on hormones, metabolism, and body weight, and he’s one of the foremost experts when it comes to carbohydrates, glycemic load, and obesity.
Why are we putting on weight? What are we getting wrong?
Contrary to popular belief, Dr. Ludwig says, weight gain is not caused by a lack of exercise. In fact, people tend to overestimate how many calories are burned by exercise.
A spoonful of sugar may make the medicine go down, but it also contains 60 calories, and that’d take about 1,500 steps for the average person to burn off. Let’s put this another way:
If you walk 10,000 steps per day, that will burn off 400 calories. Still think you can exercise away that ice cream sundae or plate of fries?
Wait, this is interesting and all, but what does this have to do with hunger?
Why we get hungry
Two important things:
- All that exercise makes us hungry, because the more we exercise, the more the body speeds up our metabolism accordingly.
- Empty calories don’t just add weight themselves, they also make us hungrier
What are empty calories, and why do they make us hungrier?
Empty calories are calories that are relatively devoid of other nutrition. This especially means simple sugars (especially refined sugar), white flour and white flour products (quick-release starches), and processed seed oils (e.g. canola, sunflower, and friends).
They zip straight into our bloodstream, and our body sends out an army of insulin to deal with the blood sugar spike. And… that backfires.
Imagine a person whose house is a terrible mess, and they have a date coming over in half an hour.
They’re going to zoom around tidying, but they’re going to stuff things out of sight as quickly and easily as possible, rather than, say, sit down and Marie Kondo the place.
But superficially, they got the job done really quickly!
Insulin does similarly when overwhelmed by a blood sugar spike like that.
So, it stores everything as fat as quickly as possible, and whew, the pancreas needs a break now after all that exertion, and the blood is nice and free from blood sugars.
Wait, the blood is what now?
The body notices the low blood sugar levels, and it also knows you just stored fat so you must be preparing for starvation, and now the low blood sugar levels indicate starvation is upon us. Quick, we must find food if we want to survive! So it sends a hunger signal to make sure you don’t let the body starve.
You make a quick snack, and the cycle repeats.
Dr. Ludwig’s solution:
First, we need to break out of that cycle, and that includes calming down our insulin response (and thus rebuilding our insulin sensitivity, as our bodies will have become desensitized, after the equivalent of an air-raid siren every 40 minutes or so).
How to do that?
First, cut out the really bad things that we mentioned above.
Next: cut healthy carbs too—we’re talking unprocessed grains here, legumes as well, and also starchy vegetables (root vegetables etc). Don’t worry, this will be just for a short while.
The trick here is that we are resensitizing our bodies to insulin.
Keep this up for even just a week, and then gradually reintroduce the healthier carbs. Unprocessed grains are better than root vegetables, as are legumes.
You’re not going to reintroduce the sugars, white flour, canola oil, etc. You don’t have to be a puritan, and if you go to a restaurant you won’t undo all your work if you have a small portion of fries. But it’s not going to be a part of your general diet.
Other tips from Dr. Ludwig:
- Get plenty of high-quality protein—it’s good for you and suppresses your appetite
- Shop for success—make sure you keep your kitchen stocked with healthy easy snack food
- Nuts, cacao nibs, and healthy seeds will be your best friends and allies here
- Make things easy—buy pre-chopped vegetables, for example, so when you’re hungry, you don’t have to wait longer (and work more) to eat something healthy
- Do what you can to reduce stress, and also eat mindfully (that means paying attention to each mouthful, rather than wolfing something down while multitasking)
If you’d like to know more about Dr. Ludwig and his work, you can check out his website for coaching, recipes, meal plans, his blog, and other resources!
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Dreams: Relevance, Meanings, Interpretations
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
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
❝I have a question or a suggestion for coverage in your “Psychology Sunday”. Dreams: their relevance, meanings ( if any) interpretations? I just wondered what the modern psychological opinions are about dreams in general.❞
We’ll indeed do that one of these Psychology Sundays! Thanks for suggesting it.
What we can say in advance is that there’s certainly not a single unified scientific consensus yet, but there are two or three prevailing views definitely worth covering, e.g. randomly generated, a by-product of reorganizing information in the brain, or expressions of subconscious thoughts/feelings.
There are also differences between a top-down/bottom-up approach to understanding dreaming, and efforts to tie those two together.
Watch this space!
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Turns out the viral ‘Sleepy Girl Mocktail’ is backed by science. Should you try it?
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Many of us wish we could get a better night’s sleep. Wouldn’t it be great if it was as easy as a mocktail before bed?
That’s what the latest viral trend might have us believe. The “Sleepy Girl Mocktail” is a mix of tart cherry juice, powdered magnesium supplement and soda water. TikTok videos featuring the concoction have garnered hundreds of thousands of views. But, what does the science say? Do these ingredients actually help us sleep?
Tart cherry juice
There is research to show including tart cherry juice in your diet improves overall sleep. Clinical trials show tart cherry juice increases sleep quality and quantity, as well as a lessening insomnia symptoms (compared to a placebo). This could be due to the presence of melatonin, a sleep-promoting hormone, in cherries.
Tart cherry varieties such as Jerte Valley or Montmorency have the highest concentration of melatonin (approximately 0.135 micrograms of melatonin per 100g of cherry juice). Over the counter melatonin supplements can range from 0.5 milligram to over 100 milligrams, with research suggesting those beginning to take melatonin start with a dose of 0.5–2 milligrams to see an improvement in sleep.
Melatonin naturally occurs in our bodies. Our body clock promotes the release of melatonin in the evening to help us sleep, specifically in the two hours before our natural bedtime.
If we want to increase our melatonin intake with external sources, such as cherries, then we should be timing our intake with our natural increase in melatonin. Supplementing melatonin too close to bed will mean we may not get the sleep-promoting benefits in time to get off to sleep easily. Taking melatonin too late may even harm our long-term sleep health by sending the message to our body clock to delay the release of melatonin until later in the evening.
Magnesium – but how much?
Magnesium also works to promote melatonin, and magnesium supplements have been shown to improve sleep outcomes.
However, results vary depending on the amount of magnesium people take. And we don’t yet have the answers on the best dose of magnesium for sleep benefits.
We do know magnesium plays a vital role in energy production and bone development, making it an important daily nutrient for our diets. Foods rich in magnesium include wheat cereal or bread, almonds, cashews, pumpkin seeds, spinach, artichokes, green beans, soy milk and dark chocolate.
Bubbly water
Soda water serves as the base of the drink, rather than a pathway to better sleep. And bubbly water may make the mix more palatable. It is important to keep in mind that drinking fluids close to bedtime can be disruptive to our sleep as it might lead to waking during the night to urinate.
Healthy sleep recommendations include avoiding water intake in the two hours before bed. Having carbonated beverages too close to bed can also trigger digestive symptoms such as bloating, gassiness and reflux during the night.
Bottoms up?
Overall, there is evidence to support trying out the Sleepy Girl Mocktail to see if it improves sleep, however there are some key things to remember:
timing: to get the benefits of this drink, avoid having it too close to bed. Aim to have it two hours before your usual bedtime and avoid fluids after this time
consistency: no drink is going to be an immediate cure for poor sleep. However, this recipe could help promote sleep if used strategically (at the right time) and consistently as part of a balanced diet. It may also introduce a calming evening routine that helps your brain relax and signals it’s time for bed
- maximum magnesium: be mindful of the amount of magnesium you are consuming. While there are many health benefits to magnesium, the recommended daily maximum amounts are 420mg for adult males and 320mg for adult females. Exceeding the maximum can lead to low blood pressure, respiratory distress, stomach problems, muscle weakness and mood problems
sugar: in some of the TikTok recipes sugar (as flavoured sodas, syrups or lollies) is added to the drink. While this may help hide the taste of the tart cherry juice, the consumption of sugar too close to bed may make it more difficult to get to sleep. And sugar in the evening raises blood sugar levels at a time when our body is not primed to be processing sugar. Long term, this can increase our risk of diabetes
sleep environment: follow good sleep hygiene practices including keeping a consistent bedtime and wake time, a wind-down routine before bed, avoiding electronic device use like phones or laptops in bed, and avoiding bright light in the evening. Bright light works to suppress our melatonin levels in the evening and make us more alert.
What about other drinks?
Other common evening beverages include herbal tisanes or teas, hot chocolate, or warm milk.
Milk can be especially beneficial for sleep, as it contains the amino acid tryptophan, which can promote melatonin production. Again, it is important to also consider the timing of these drinks and to avoid any caffeine in tea and too much chocolate too close to bedtime, as this can make us more alert rather than sleepy.
Getting enough sleep is crucial to our health and wellbeing. If you have tried multiple strategies to improve your sleep and things are not getting better, it may be time to seek professional advice, such as from a GP.
Charlotte Gupta, Postdoctoral research fellow, CQUniversity Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Worst Way to Wake Up (and What to Do Instead)
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Not everyone is naturally inclined to be a morning person, but there are things we can do to make things go more easily for our brains!
Cause for alarm?
Dr. Tracey Marks, psychiatrist, explains the impact of our first moments upon awakening, and what that can do to/for us in terms of sleep inertia (i.e. grogginess).
Sleep inertia is worse when waking from deep sleep—and notably, we don’t naturally wake directly from deep sleep unless we are externally aroused (e.g. by an alarm clock).
Dr. Marks suggests the use of more gradual alarms, including those with soft melodies, perhaps birdsong or other similarly gentle things (artificial sunlight alarms are also good), to ease our transition from sleeping to waking. It might take us a few minutes longer to be woken from sleep, but we’re not going to spend the next hour in a bleary-eyed stupor.
For more details on these things and more (including why not to hit “snooze”), enjoy:
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Hot And Sour Shiitake Soup
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This is a popular, easy, and delicious soup that nonetheless is not found in many western kitchens, despite being enjoyed in restaurants/take-out. Best of all, making it at home means that you know all the ingredients, can account for quality, and also can customize it per your preferences (i.e. how much heat/sourness you like).
You will need
- 3 cups shiitake mushrooms, sliced
- 3 cups bok choy, chopped
- 2 cups cherry tomatoes, quartered
- 1 cup carrot, grated
- 3 spring onions, chopped
- 2 shallots, sliced lengthways
- 2 serrano chilis (or similar), sliced thinly
- 2 tbsp apple cider vinegar
- 1 tbsp lemon juice
- 1 tbsp fresh ginger, sliced into 1″ strips
- 1 tsp black pepper, coarse ground
- ½ bulb garlic, crushed
- 6 cups low-sodium vegetable stock. Ideally you will have made it yourself from vegetable cuttings that you saved in the freezer until you had enough to make stock from, but if that’s not an option, then low-sodium vegetable stock cubes can be purchased and used.
- Garnish: ¼ cup (or 4 tbsp) cilantro, chopped, or if you have the soap gene, then this time we recommend chopped basil as the subsitution
Method
(we suggest you read everything at least once before doing anything)
1) Put the ginger in a big pot with the stock; cover and simmer for about 20 minutes (otherwise the ginger flavor will remain mostly concentrated in the ginger strips).
2) Bring it to a boil and add the bok choy, mushrooms, shallots, chili peppers, and the carrot; simmer for another 5 minutes
3) Add the remaining ingredients except for the garnish, and simmer for another 5 minutes
4) Serve, adding the garnish
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- The (Longevity) Magic of Mushrooms
- Our Top 5 Spices: How Much Is Enough For Benefits?
- An Apple (Cider Vinegar) A Day…
- Enjoy Bitter/Hot/Sour/Pungent Foods For Your Heart & Brain
- Brain Food? The Eyes Have It!
- Some Surprising Truths About Hunger And Satiety
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Creamy Fortifying Cauliflower Soup
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As delicious as it is super-easy to make, this one is full of protein, fiber, healthy fats, and some of the most health-giving spices around.
You will need
- 1 quart low-sodium vegetable stock
- 1 large cauliflower, cut into florets
- 1 large onion, finely chopped
- 2 cans cannellini (or other white) beans, drained and rinsed
- 1 cup raw cashews, soaked in hot water for at least 5 minutes, and drained (if allergic, substitute chickpeas)
- 1 bulb (yes, a whole bulb) garlic, roughly chopped
- 5 tbsp nutritional yeast
- 10 fresh sprigs of thyme (keep them whole!)
- 1 large fresh sprig of rosemary (keep this whole too!)
- zest of 1 lemon
- 1 tbsp red chili flakes
- 1 tbsp black pepper, coarse ground
- 1 tsp MSG or 2 tsp low-sodium salt
- ½ tsp ground turmeric
- Extra virgin olive oil
Method
(we suggest you read everything at least once before doing anything)
1) Tightly tie up the sprigs of rosemary and thyme with kitchen twine (shining a bright light on it and asking it invasive questions is optional)
2) Heat some olive oil to a medium heat in your biggest sauté pan or similar. Add the onions, and cook for about 10 minutes, stirring as necessary. We are not trying to outright caramelize them here, but we do want them browned a little.
3) Add the garlic and cook for another 2 minutes, stirring frequently.
4) Add the vegetable stock, and stir, ensuring no onion is stuck to the base of the pan. Add the cauliflower, cashews, beans, nooch, pepper, turmeric, and MSG/salt, stirring to combine. Don’t worry if the cauliflower isn’t all submerged; it’ll be fine in a little while.
5) Add the herbs, submerging them in the soup (still tied up bouquet garni style).
6) Bring to a boil, reduce to a simmer and cook for 15–20 minutes; the cauliflower will be soft when it’s ready.
7) Remove the bouquet garni, and blend the soup until thick and creamy. You can do this with an immersion blender, but to get the smoothest soup, you’ll need to use a stand blender. Either ensure yours is safe for hot liquids, or else allow to cool, blend, and reheat later. This is important, as otherwise your blender could explode.
8) Serve, using the lemon zest and chili for the garnish:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Some Surprising Truths About Hunger And Satiety
- Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)
- Our Top 5 Spices: How Much Is Enough For Benefits?
Take care!
Don’t Forget…
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