Walk Yourself Happy – by Dr. Julia Bradbury
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Notwithstanding her (honorary) doctorate, Dr. Bradbury is not, in fact, a scientist. But…
- She has a lot of experience walking all around the world, and her walking habit has seen her through all manner of things, from stress and anxiety to cancer and grief and more.
- She does, throughout this book, consult many scientists and other experts (indeed, some we’ve featured here before at 10almonds), so we still get quite a dose of science too.
The writing style of this book is… Compelling. Honestly, the biggest initial barrier to you getting out of the door will be putting this book down first.If you have good self-discipline, you might make it last longer by treating yourself to a chapter per day
Bottom line: you probably don’t need this book to know how to go for a walk, but it will motivate, inspire, and even inform you of how to get the most out of it. Treat yourself!
Click here to check out Walk Yourself Happy, and prepare for a new healthy habit!
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The Dopamine Precursor And More
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What Is This Supplement “NALT”?
N-Acetyl L-Tyrosine (NALT) is a form of tyrosine, an amino acid that the body uses to build other things. What other things, you ask?
Well, like most amino acids, it can be used to make proteins. But most importantly and excitingly, the body uses it to make a collection of neurotransmitters—including dopamine and norepinephrine!
- Dopamine you’ll probably remember as “the reward chemical” or perhaps “the motivation molecule”
- Norepinephrine, also called noradrenaline, is what powers us up when we need a burst of energy.
Both of these things tend to get depleted under stressful conditions, and sometimes the body can need a bit of help replenishing them.
What does the science say?
This is Research Review Monday, after all, so let’s review some research! We’re going to dive into what we think is a very illustrative study:
A 2015 team of researchers wanted to know whether tyrosine (in the form of NALT) could be used as a cognitive enhancer to give a boost in adverse situations (times of stress, for example).
They noted:
❝The potential of using tyrosine supplementation to treat clinical disorders seems limited and its benefits are likely determined by the presence and extent of impaired neurotransmitter function and synthesis.❞
More on this later, but first, the positive that they also found:
❝In contrast, tyrosine does seem to effectively enhance cognitive performance, particularly in short-term stressful and/or cognitively demanding situations. We conclude that tyrosine is an effective enhancer of cognition, but only when neurotransmitter function is intact and dopamine and/or norepinephrine is temporarily depleted❞
That “but only”, is actually good too, by the way!
You do not want too much dopamine (that could cause addiction and/or psychosis) or too much norepinephrine (that could cause hypertension and/or heart attacks). You want just the right amount!
So it’s good that NALT says “hey, if you need some more, it’s here, if not, no worries, I’m not going to overload you with this”.
Read the study: Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands
About that limitation…
Remember they said that it seemed unlikely to help in treating clinical disorders with impaired neurotransmitter function and/or synthesis?
Imagine that you employ a chef in a restaurant, and they can’t keep up with the demand, and consequently some of the diners aren’t getting fed. Can you fix this by supplying the chef with more ingredients?
Well, yes, if and only if the problem is “the chef wasn’t given enough ingredients”. If the problem is that the oven (or the chef’s wrist) is broken, more ingredients aren’t going to help at all—something different is needed in those cases.
So it is with, for example, many cases of depression.
See for example: Tyrosine for depression: a double-blind trial
About blood pressure…
You may be wondering, “if NALT is a precursor of norepinephrine, a vasoconstrictor, will this increase my blood pressure adversely?”
Well, check with your doctor as your own situation may vary, but under normal circumstances, no. The effect of NALT is adaptogenic, meaning that it can help keep its relevant neurotransmitters at healthy levels—not too low or high.
See what we mean, for example in this study where it actually helped keep blood pressure down while improving cognitive performance under stress:
Effect of tyrosine on cognitive function and blood pressure under stress
Bottom line:
For most people, NALT is a safe and helpful way to help keep healthy levels of dopamine and norepinephrine during times of stress, giving cognitive benefits along the way.
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The Cough Doctor
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The Cough Doctor
This is Dr. Peter Small, who worked in epidemiology since the beginning of HIV epidemic. He became a pioneer in the field of molecular epidemiology. As such, his work was a guiding beacon for the public health response to the resurgence of tuberculosis. He’s travelled the world spending years in various institutions studying all manner of respiratory illnesses…. These have ranged from tuberculosis to pneumonia to lung cancer and (back to epidemiology) Covid-19.
He’s now the Chief Medical Officer at…
Hyfe
Hyfe, a medical AI company, was founded in 2020. Its objective: to build acoustic tools for respiratory diagnostics and monitoring.
In other words: it records coughs and collects data about coughing.
❝It’s ironic how much people focus on counting steps while ignoring cough, which is far more consequential. Hyfe is a science-driven company with the technology to make cough count. Particularly now, with increased awareness of cough and the rapid growth of digital health driven by Covid-19, this technology can improve the lives of patients, the care provided by doctors, and the efficiency of health systems.❞
~ Dr. Peter Small, CMO, Hyfe
How does it do it?
Hyfe’s AI monitors the number of times a person coughs and the sound of the cough through any smartphone or other smart device.
This data collected over time provides increasingly more reliable information than a single visit to the doctor! By constantly listening and analyzing, it can detect patterns that might otherwise go unnoticed.
How big is this “big data” effort?
Hyfe maintains the largest cough dataset in the world. This means it can compare the sound of a patient’s cough with more than 400 million cough-like sounds from 83 countries across all continents.
The human brain doesn’t handle big numbers well. So, just to illustrate: if the average cough is 1 second long, that means it’d take more than 12 years to listen to them all.
Hyfe, meanwhile, can:
- listen to many things simultaneously
- index them all against user and location,
- use its ever-growing neural net to detect and illustrate patterns.
It’s so attentive, that it can learn to distinguish between different people’s coughs in the same household.
❝Companies like Google Health see even basic information such as getting an accurate count of the number of times a person coughs a day as a useful resource, and part of a larger need to collect and chronicle more health information to refine the way doctors diagnose disease and manage treatments in the future.❞
What are the public health implications?
The most obvious application is to note when there’s a spike in coughing, and see how such spikes grow and spread (if they do), to inform of contagion risks.
Another is to cross-reference it with data about local environmental allergens. Knowing how things like pollution and even pollen affect individuals differently could be helpful in identifying (and managing) chronic conditions like asthma.
What are the private health implications?
❝It’s going to transform the whole clinical approach for this common and chronic symptom. Patients will come in, have the data on how much they are coughing, and the physician can suggest a treatment based on that information to see if it makes the coughs better❞
~ Dr. Peter Small
Dr. Small’s colleague Dr. Cai, speaking for Google Health on this project, sees even more utility for diagnostics:
❝When I was in medical school, never ever did they teach us that we could listen to somebody cough and identify whether that person has TB (tuberculosis), COPD, or a tumor. But I keep seeing more and more studies of people coughing into a microphone, and an algorithm can detect whether somebody has TB with 95% specificity and sensitivity, or if someone has pneumonia or an exacerbation of COPD❞
~ Dr. Lawrence Cai
And the privacy implications?
Perhaps you don’t quite fancy the idea of not being able to cough without Google knowing about it. Hyfe’s software is currently opt-in, but…
If you cough near someone else’s Hyfe app, their app will recognize you’re not the app’s user, and start building a profile for you. Of course, that won’t be linked to your name, email address, or other IDs, as it would if you were the app’s user.
Hyfe will ask to connect to your social media, to collect more information about you and your friends.
Whether you’d like to try this or perhaps you’re just curious to learn more about this fascinating project, you can check out:
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Take Care Of Your “Unwanted” Parts Too!
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Meet The Family…
If you’ve heard talk of “healing your inner child” or similar ideas, then today’s featured type of therapy takes that to several extra levels, in a way that helps many people.
It’s called Internal Family Systems therapy, often “IFS” for short.
Here’s a quick overview:
Psychology Today | Internal Family Systems Therapy
Note: if you are delusional, paranoid, schizophrenic, or have some other related disorder*, then IFS would probably be a bad idea for you as it could worsen your symptoms, and/or play into them badly.
*but bipolar disorder, in its various forms, is not usually a problem for IFS. Do check with your own relevant healthcare provider(s), of course, to be sure.
What is IFS?
The main premise of IFS is that your “self” can be modelled as a system, and its constituent parts can be examined, questioned, given what they need, and integrated into a healthy whole.
For example…
- Exile is the name given to parts that could be, for example, the “inner child” referenced in a lot of pop-psychology, but it could also be some other ignored and pushed-down part of oneself, often from some kind of trauma. The defining characteristic of an exile is that it’s a part of ourself that we don’t consciously allow ourselves to see as a current part of ourself.
- Protector is the name given to a part of us that looks to keep us safe, and can do this in an adaptive (healthy) or maladaptive (unhealthy) way, for example:
- Firefighter is the name given to a part of us that will do whatever is necessary in the moment to deal with an exile that is otherwise coming to the surface—sometimes with drastic actions/reactions that may not be great for us.
- Manager is the name given to a part of us that has a more nurturing protective role, keeping us from harm in what’s often a more prophylactic manner.
To give a simple illustration…
A person was criticized a lot as a child, told she was useless, and treated as a disappointment. Consequently, as an adult she now has an exile “the useless child”, something she strives to leave well behind in her past, because it was a painful experience for her. However, sometimes when someone questions and/or advises her, she will get defensive as her firefighter “the hero” will vigorously speak up for her competence, like nobody did when she was a child. This vigor, however, manifests as rude abrasiveness and overcompensation. Finally, she has a manager, “the advocate”, who will do the same job, but in a more quietly confident fashion.
This person’s therapy will look at transferring the protector job from the firefighter to the manager, which will involve examining, questioning, and addressing all three parts.
The above example is fictional and created for simplicity and clarity; here’s a real-world case study if you’d like a more in-depth overview of how it can work:
How it all fits together in practice
IFS looks to make sure all the parts’ needs are met, even the “bad” ones, because they all have their functions.
Good IFS therapy, however, can make sure a part is heard, and then reassure that part in a way that effectively allows that part to “retire”, safe and secure in the knowledge that it has done what it needed to, and/or the job is being done by another part now.
That can involve, for example, thanking the firefighter for looking after our exile for all these years, but that our exile is safe and in good hands now, so it can put that fire-axe away.
See also: On Being Reactive vs Being Responsive
Questions you might ask yourself
While IFS therapy is best given by a skilled practitioner, we can take some of the ideas of it for self-therapy too. For example…
- What is a secret about yourself that you will take to the grave? And now, why did that part of you (now an exile) come to exist?
- What does that exile need, that it didn’t get? What parts of us try to give it that nowadays?
- What could we do, with all that information in mind, to assign the “protection” job to the part of us best-suited to healthy integration?
Want to know more?
We’ve only had the space of a small article to give a brief introduction to Family Systems therapy, so check out the “resources” tab at:
IFS Institute | What Is Internal Family Systems Therapy?
Take care!
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What Macronutrient Balance Is Right For You?
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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 want to learn more about macros. Can you cover that topic?❞
That’s a little broader than we usually go for, given the amount of space we have, but let’s give it a go!
Macronutrients, or “macros”, are the nutrients that we typically measure in grams rather than milligrams or micrograms, and are:
- Carbohydrates
- …and what kinds, of which usually the focus is on how much is sugars as opposed to more complex carbs that take longer to break down. See also: Should You Go Light Or Heavy On Carbs?
- …and of the sugars, the interested may further categorize them into sucrose, fructose, etc. See also: Which Sugars Are Healthier, And Which Are Just The Same?
- Proteins
- …of which, the amino acid make-up is generally considered a matter of micronutrients. See also: Protein: How Much Do We Need, Really?
- Fats
- …and what kinds, i.e. monounsaturated vs polyunsaturated vs saturated. See also: Saturated Fat: What’s The Truth?
- …and then the interested may further categorize them for their fatty acids / triglycerides profile, etc. See also: What Omega-3 Fatty Acids Really Do For Us
- Fiber
- …which often gets ignored by people counting macros, as “stuff that doesn’t do anything”, despite it in fact being very important for health. See also: Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
- Water
- …which again tends to get disregarded but is very arguably a critical macronutrient. See also: Busting The Myth of “Eight Glasses Of Water A Day”
In terms of how much we need of each, you can read more in the above-linked articles, but:
- General scientific consensus is we need plenty of fiber (30 or 40g per day is good) and water (highly dependent on climate and activity), and there’s a clear minimum requisite for protein (usually put at around 1g of protein per day per 1kg of body weight).
- There is vigorous debate in the general health community about what the best ratio of carbs to fat is.
The reality is that humans are quite an adaptable species, and while we absolutely do need at least some of both (carbohydrates and fats), we can play around with the ratios quite a bit, provided we don’t get too extreme about it.
While some influence is social and often centered around weight loss (see for example keto which seeks to minimize carbs, and volumetrics, which seeks maximise volume-to-calorie ratio, which de facto tends to minimize fats), some of what drives us to lean one way or the other will be genetics, too—dependent on what our ancestors ate more or less of.
Writer’s example: my ancestors could not grow much grain (or crops in general) where they were, so they got more energy from such foods as whale and seal fat (with protein coming more from reindeer). Now, biology is not destiny, and I personally enjoy a vegan diet, but my genes are probably why I am driven to get most of my daily calories from fat (of which, a lot of fatty nuts (don’t tell almonds, but I prefer walnuts and cashews) and healthy oils such as olive oil, avocado oil, and coconut oil).
However! About that adaptability. Provided we make changes slowly, we can usually adjust our diet to whatever we want it to be, including whether we get our energy more from carbs or fats. The reason we need to make changes slowly is because our gut needs time to adjust. For example, if your vegan writer here were to eat her ancestrally-favored foods now, I’d be very ill, because my gut microbiome has no idea what to do with animal products anymore, no matter what genes I have. In contrast, if an enthusiastic enjoyer of a meat-heavy diet were to switch to my fiber-rich diet overnight, they’d be very ill.
So: follow your natural inclinations, make any desired changes slowly, and if in doubt, it’s hard to go wrong with enjoying carbs and fats in moderation.
Learn more: Intuitive Eating Might Not Be What You Think
Take care!
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Why Do We Have Crooked Teeth When Our Ancestors Didn’t?
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Evidence shows that people in ancient times typically had straight teeth set well into strong jaws, with even wisdom teeth fitting properly.
So, what went wrong? Did evolution do us a disservice?
Some information to chew on
Transition from hard-to-chew diets to processed, refined foods over millennia has reduced jaw size while tooth size stayed constant. Smaller jaws lead to tooth crowding, crookedness, and impacted wisdom teeth, requiring braces or extractions in modern times.
However, all is not lost!
Studies on non-human animals show softer diets reduce jaw and facial growth, causing dental crowding. In other words: dental crowding is primarily attributed to dietary and lifestyle changes, though genetics may play a role.
And notably, when it comes to humans, populations with less processed diets experience fewer dental problems, suggesting lifestyle modifications could help prevent tooth crowding.
And no, it is not too late. Remember, you are rebuilding your body all the time, including your bones!
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
The Exercises That Can Fix Sinus Problems (And More) ← this also improves the jaw structure
Take care!
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The surprising ways ‘swimming off’ a hangover can be risky, even if alcohol has left your system
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It’s the morning after a big night and you’re feeling the effects of too much alcohol.
So it can be tempting to “refresh” and take the edge off a hangover with a swim at the beach, or a dip in the cool waters of your local river or pool.
But you might want to think twice.
The day after heavy drinking can affect your body, energy levels and perception of risk in many ways. This means you’re more likely to drown or make careless decisions – even without high levels of alcohol in your blood.
Wanderlust Media/Shutterstock Alcohol + water + summer = drowning
Alcohol is one of the main reasons why someone’s more likely to die due to drowning. And Australians consume a lot of it, including around the water.
The risk of drowning, and injury, including incidents involving alcohol, dramatically increases over the summer festive period – in particular on public holidays and long weekends.
Among people aged 18 and over who drowned in rivers where alcohol was involved, we found some 40% had a blood alcohol concentration of at least 0.20%. That’s four times the upper legal limit of 0.05% when driving a car on a full licence.
When we breathalysed people at four Australian rivers, we found higher levels of blood alcohol with higher temperatures, and particularly on public holidays.
At the beach, intoxication due to alcohol and/or drugs is involved in 23% of drowning deaths with an average blood alcohol concentration of 0.19%.
How about if you’re hungover?
Getting alcohol out of your body is a relatively slow process. On average, alcohol is metabolised at a rate of 0.015% per hour. So if someone stops drinking at 2am with a blood alcohol concentration of 0.20%, their alcohol levels don’t drop to zero until 4pm the next day.
Although hangovers can vary from person to person, typical symptoms include headache, muscle aches, fatigue, weakness, thirst, nausea, stomach pain, vertigo, irritability, sensitivity to light and sound, anxiety, sweating and increased blood pressure.
As well as feeling a bit dusty, the day after an evening of heavy drinking, you’re not so good at identifying risks and reacting to them.
In a pool, this might mean not noticing it’s too shallow to dive safely. In natural waterways, this might mean not noticing a strong river current or a rip current at the beach. Or someone might notice these hazards but swim or dive in anyway.
You don’t have to have alcohol in your blood to be affected. Fatigue can set in, leading you to make careless decisions. tismaja/Shutterstock In one study, we found that after a four-day Australian music festival where people drank heavily, even people who were sober (no longer had alcohol in their blood) were still affected.
Compared to baseline tests in the lab we ran three weeks before the festival, people who were sober the day after the festival had faster reaction times in a test to gauge their attention. But they made more mistakes. This suggests hangovers coupled with fatigue lead to quicker but more careless behaviour.
In and around water this could be the difference between life and death.
Positive blood alcohol readings, including of alcohol from the night before, are commonly implicated in drowning deaths as a result of risky behaviours such as jumping into the water, both at a river and along the coast. Jumping can cause physical injury or render you unconscious, leading to drowning.
Alcohol, including the day after drinking, can also make drowning more likely for a number of other reasons. It also reduces people’s coordination and reaction times.
What else is going on?
Alcohol makes the blood vessels near your skin open up (dilate). So more blood flows into them, making you feel hot. This means you may stay in colder water for longer, increasing your risk of hypothermia.
Alcohol can even make CPR (cardiopulmonary resuscitation) less effective, should you need to be resuscitated.
Normally, your body controls levels of certain minerals (or electrolytes) in the blood. But electrolyte imbalance is common after heavy drinking, including the day after. It’s the reason why hangover symptoms such as muscle pain can lead to cramps in your arms or legs. This can become dangerous when being in or on the water.
Low blood sugar levels the day after drinking is also common. This can lead to people becoming exhausted more quickly when doing physical activities, including swimming.
Other hazards include cold water, high waves and deep water, all of which your body may not be capable of dealing with if you’re feeling the effects of a big night.
What can we do about it?
Authorities regularly warn about the dangers of alcohol intoxication and being near the water. Young people and men are often targeted because these are the groups more likely to drown where alcohol is involved.
Beaches may have alcohol-free zones. Rivers rarely have the same rules, despite similar dangers. https://www.youtube.com/embed/5Salt-kkGUo?wmode=transparent&start=0 Royal Life Saving urges men to ‘make the right call’ and avoid alcohol around the water.
How to stay safe around water if you’re drinking
So take care this summer and stay out of the water if you’re not feeling your best:
- do your swimming before your drinking
- look out for your mates, especially ones who may have had a few too many or are hungover
- avoid getting back into the water after you’ve drunk alcohol or if you’re not feeling your best the next day.
Amy Peden, NHMRC Research Fellow, School of Population Health & co-founder UNSW Beach Safety Research Group, UNSW Sydney; Emmanuel Kuntsche, Director of the Centre for Alcohol Policy Research, La Trobe University, and Jasmin C. Lawes, Adjunct Senior Lecturer, UNSW Beach Safety Research Group, UNSW Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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