Curious Kids: what are the main factors in forming someone’s personality?
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“What are the main factors in forming someone’s personality?” – Emma, age 10, from Shanghai
Hello Emma, and thank you for this very interesting question!
Let’s start by exploring what we mean by personality. Have you noticed no two people are completely alike? We all see, experience, and understand the world in different ways.
For example, some people love spending time with friends and being the centre of attention, whereas other people are more shy and enjoy having time to themselves.
Your unique personality is shaped by your genes as well as various influences in your environment. And your personality plays an important role in how you interact with the world.
The big five
Did you know there are scientists who spend time researching personality? Their research is concerned with describing the ways people differ from each other, and understanding how these differences could be important for other parts of life such as our health and how well we do in school or at work.
There are many different perspectives on personality. A widely accepted viewpoint based on a lot of research is called the five factor model or the “big five”. According to this theory, a great deal of a person’s personality can be summarised in terms of where they sit on five dimensions, called traits:
- the introversion-extraversion trait refers to how much someone is outgoing and social (extroverted) or prefers being with smaller groups of friends or focusing on their own thoughts (introverted)
- agreeableness captures how much someone tends to be cooperative and helps others
- openness to experience refers to how much a person is creative and enjoys experiencing new things
- neuroticism describes a person’s tendency to experience negative feelings, like worrying about things that could go wrong
- conscientiousness encompasses how much a person is organised, responsible, and dedicated to things that are important to them, like schoolwork or training for a sports team.
A person can have high, low, or moderate levels of each of these traits. And understanding whether someone has higher or lower levels of the big five can tell us a lot about how we might expect them to behave in different situations.
So what shapes our personalities?
A number of factors shape our personalities, including our genes and social environment.
Our bodies are made up of many very small structures called cells. Within these cells are genes. We inherit genes from our parents, and they carry the information needed to make our bodies and personalities. So, your personality may be a bit like your parents’ personalities. For example, if you’re an outgoing sort of person who loves to meet new people, perhaps one or both of your parents are very social too.
KieferPix/Shutterstock
Personalities are also affected by our environment, such as our experiences and our relationships with family and friends. For example, some research has shown our relationships with our parents can influence our personality. If we have loving and warm relationships, we may be more agreeable and open. But if our relationships are hurtful or stressful, this may increase our neuroticism.
Another study showed that, over time, young children who were more physically active were less introverted (less shy) and less likely to get very upset when things don’t go their way, compared to children who were less physically active. Although we don’t know why this is for sure, one possible explanation is that playing sport leads to reduced shyness because it introduces children to different people.
While we’re learning more about personality development all the time, research in this area presents quite a few challenges. Many different biological, cultural and environmental influences shape our development, and these factors can interact with each other in complex ways.
Is our personality fixed once we become adults?
Although we develop most of our personality when we are young, and people’s personalities tend to become more stable as they get older, it is possible for aspects of a person’s personality to change, even when they are fully grown.
A good example of this can be seen among people who seek treatment for conditions like anxiety or depression. People who respond well to working with a psychologist can show decreases in neuroticism, indicating they become less likely to worry a lot or feel strong negative feelings when something stressful happens.
Hello, Curious Kids! Do you have a question you’d like an expert to answer? Ask an adult to send your question to mailto:curiouskids@theconversation.edu.au
Tim Windsor, Professor, Director, Generations Research Initiative, College of Education, Psychology and Social Work, Flinders University and Natalie Goulter, Lecturer, College of Education, Psychology and Social Work, Flinders University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Small Changes For A Healthier Life
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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
I am interested in what I can substitute for ham in bean soup?
Well, that depends on what the ham was like! You can certainly buy ready-made vegan lardons (i.e. small bacon/ham bits, often in tiny cubes or similar) in any reasonably-sized supermarket. Being processed, they’re not amazing for the health, but are still an improvement on pork.
Alternatively, you can make your own seitan! Again, seitan is really not a health food, but again, it’s still relatively less bad than pork (unless you are allergic to gluten, in which case, definitely skip this one).
Alternatively alternatively, in a soup that already contains beans (so the protein element is already covered), you could just skip the ham as an added ingredient, and instead bring the extra flavor by means of a little salt, a little yeast extract (if you don’t like yeast extract, don’t worry, it won’t taste like it if you just use a teaspoon in a big pot, or half a teaspoon in a smaller pot), and a little smoked paprika. If you want to go healthier, you can swap out the salt for MSG, which enhances flavor in a similar fashion while containing less sodium.
Wondering about the health aspects of MSG? Check out our main feature on this, from last month:
I thoroughly enjoy your daily delivery. I’d love to see one for teens too!
That’s great to hear! The average age of our subscribers is generally rather older, but it’s good to know there’s an interest in topics for younger people. We’ll bear that in mind, and see what we can do to cater to that without alienating our older readers!
That said: it’s never too soon to be learning about stuff that affects us when we’re older—there are lifestyle factors at 20 that affect Alzheimer’s risk at 60, for example (e.g. drinking—excessive drinking at 20* is correlated to higher Alzheimer’s risk at 60).
*This one may be less of an issue for our US readers, since the US doesn’t have nearly as much of a culture of drinking under 21 as some places. Compare for example with general European practices of drinking moderately from the mid-teens, or the (happily, diminishing—but historically notable) British practice of drinking heavily from the mid-teens.
How much turmeric should I take each day?
Dr. Michael Greger’s research (of “Dr. Greger’s Daily Dozen” and “How Not To Die” fame) recommends getting at least ¼ tsp turmeric per day
Remember to take it with black pepper though, for a 2000% absorption bonus!
A great way to get it, if you don’t want to take capsules and don’t want to eat spicy food every day, is to throw a teaspoon of turmeric in when making a pot of (we recommend wholegrain!) rice. Turmeric is very water-soluble, so it’ll be transferred into the rice easily during cooking. It’ll make the rice a nice golden yellow color, and/but won’t noticeably change the taste.
Again remember to throw in some black pepper, and if you really want to boost the nutritional content,some chia seeds are a great addition too (they’ll get cooked with the rice and so it won’t be like eating seeds later, but the nutrients will be there in the rice dish).
You can do the same with par-boiled potatoes or other root vegetables, but because cooking those has water to be thrown away at the end (unlike rice), you’ll lose some turmeric in the water.
Request: more people need to be aware of suicidal tendencies and what they can do to ward them off
That’s certainly a very important topic! We’ll cover that properly in one of our Psychology Sunday editions. In the meantime, we’ll mention a previous special that we did, that was mostly about handling depression (in oneself or a loved one), and obviously there’s a degree of crossover:
The Mental Health First-Aid That You’ll Hopefully Never Need
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Resistance Is Useful! (Especially As We Get Older)
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Resistance Is Useful!
At 10almonds we talk a lot about the importance of regular moderate exercise (e.g. walking, gardening, housework, etc), and with good reason: getting in those minutes (at least 150 minutes per week, so, a little over 20 minutes per day, or 25 minutes per day with one day off) is the exericise most consistently linked to better general health outcomes and reduced mortality risk.
We also often come back to mobility, because at the end of the day, being able to reach for something from a kitchen cabinet without doing oneself an injury is generally more important in life than being able to leg-press a car.
Today though, we’re going to talk about resistance training.
What is resistance training?
It can be weight-lifting, or it can be bodyweight exercises. In those cases, what you’re resisting is gravity. It can also be exercises with resistance bands or machines. In all cases, it’s about building and/or maintaining strength.
Why does it matter?
Let’s say you’re not an athlete, soldier, or laborer, and the heaviest thing you have to pick up is a bag of groceries. Strength still matters, for two main reasons:
- Muscle strength correlates to bone strength. You can’t build (or maintain) strong muscles on weak bones, so if you take care of your muscles, then your body will keep your bones strong too.
- That’s assuming you have a good diet as well—but today’s not about that. If you’d like to know more about eating for bone health though, do check out this previous article about that!
- Muscle strength correlates to balance and stability. You can’t keep yourself from falling over if you are physically frail.
Both of those things matter, because falls and fractures often have terrible health outcomes (e.g., slower recovery and more complications) the older we get. So, we want to:
- Ideally, not fall in the first place
- If we do fall, have robust bones
See also: Effects of Resistance Exercise on Bone Health
How much should we do?
Let’s go to the Journal of Strength and Conditioning Research on this one:
❝There is strong evidence to support the benefits of resistance exercise for countering many age-related processes of sarcopenia, muscle weakness, mobility loss, chronic disease, disability, and even premature mortality.
In addition, this Position Statement provides specific evidence-based practice recommendations to aid in the implementation of resistance exercise programs for healthy older adults and those with special considerations.
While there are instances where low-intensity, low-volume programs are appropriate (i.e., beginning programs for individuals with frailty or CVDs), the greatest benefits are possible with progression to moderate to higher intensity programs.❞
~ Fragala et al
Read the statement in full:
There’s a lot of science there and it’s well worth reading if you have the time. It’s particularly good at delineating how much is not enough vs how much is too much, and the extent to which we should (or shouldn’t) train to exhaustion.
If you don’t fancy that, though, and/or just want to start with something accessible and work your way up, the below is a very good (and also evidence-based) start-up plan:
Healthline’s Exercise Plan For Seniors—For Strength, Balance, & Flexibility
(it has a weekly planner, step-by-step guides to the exercises, and very clear illustrative animations of each)
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- Muscle strength correlates to bone strength. You can’t build (or maintain) strong muscles on weak bones, so if you take care of your muscles, then your body will keep your bones strong too.
Fiber Fueled – by Dr. Will Bulsiewicz
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We generally know that for gut health we should eat fiber, but what of the balances of different sorts of fiber?
That’s one of the main things that make this book stand out—fostering diversity in our microbiome by fostering diversity in our diet. Specifically, diversity of fiber-containing foods.
The book is part “science made easy for the lay reader”, and part recipe book. The recipes come with shopping lists and a meal planner, though we would recommend to use those as a guide rather than to try to adhere perfectly to them.
In particular, this reviewer would encourage much more generous use of healthful seasonings… and less reliance on there being leftovers several days later (tasty food gets gone quickly in this house!)
As for the science, the feel of this is more like reading a science-based observational documentary with explanations, than of reading a science textbook. Studies are mentioned in passing, but not dissected in any detail, and the focus is more on getting the key learnings across.
Bottom line: if you’d like to boost not just the amount, but also the diversity, of fiber in your diet, and reap the gut-health rewards, this book is a great guide for that!
Click here to get your copy of “Fiber Fueled” from Amazon today!
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An Unexpected Extra Threat Of Alcohol
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If You Could Use Some Exotic Booze…
…then for health reasons, we’re going to have to say “nay”.
We’ve written about alcohol before, and needless to say, it’s not good:
(the answer is “no, we cannot”)
In fact, the WHO (which unlike government regulatory bodies setting “safe” limits on drinking, makes no profit from taxes on alcohol sales) has declared that “the only safe amount of alcohol is zero”:
WHO: No level of alcohol consumption is safe for our health
Up there, where the air is rarefied…
If you’re flying somewhere this summer (Sinatra-style flying honeymoon or otherwise), you might want to skip the alcohol even if you normally do imbibe, because:
❝…even in young and healthy individuals, the combination of alcohol intake with sleeping under hypobaric conditions poses a considerable strain on the cardiac system and might lead to exacerbation of symptoms in patients with cardiac or pulmonary diseases.
These effects might be even greater in older people; cardiovascular symptoms have a prevalence of 7% of inflight medical emergencies, with cardiac arrest causing 58% of aircraft diversions.❞
Source: Alcohol plus cabin pressure at higher altitude may threaten sleeping plane passengers’ heart health
The experiment divided subjects into a control group and a study group; the study group were placed in simulated cabin pressure as though at altitude, which found, when giving some of them two small(we’re talking the kind given on flights) alcoholic drinks:
❝The combination of alcohol and simulated cabin pressure at cruising altitude prompted a fall in SpO2 to an average of just over 85% and a compensatory increase in heart rate to an average of nearly 88 beats/minute during sleep.❞
In contrast, that was 77 beats/minute for those who had alcohol but weren’t at altitude pressure, or 64 beats/minute for those who neither drank nor were at altitude pressure.
Lots more metrics were recorded and the study is interesting to read; if you’ve ever slept on a plane and thought “that sleep was not restful at all”, then know: it wasn’t just the seat’s fault, nor the engine, nor the recycled nature of the air—it was the reduced pressure causing hypoxia (defined as having oxygen levels lower than the healthy clinical norm of 90%) and almost halving your sleep’s effectiveness for a less than 10% drop in available oxygen in the blood (the sleepers not at altitude pressure averaged 96% SpO2, compared to the 85% at altitude).
We say “almost halving” because the deep sleep phase of sleep was reduced from 84 minutes (control) to 67.5 minutes at altitude without alcohol, or 46.5 minutes at altitude with alcohol.
Again, this was a pressure cabin in a lab—so this wasn’t about the other conditions of an airplane (seats, engine hundreds of other people, etc).
Which means: in an actual airplane it’s probably even worse.
Oh, and the study participants? All healthy individuals aged 18–40, so again probably worse for those older (or younger) than that range, or with existing health conditions!
Want to know more?
You can read the study in full here:
Want to drop the drink at any altitude? Check out:
Want to get that vacation feel without alcohol? You’re going to love:
Mocktails – by Moira Clark (book)
Enjoy!
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The Kindness Method – by Shahroo Izadi
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Shahroo Izadi here covers everything from alcohol addiction to procrastination to weight loss. It’s a catch-all handbook for changing your habits—in general, and/or in whatever area of your life you most feel you want or need to.
She herself went from yo-yo dieting to a stable healthy lifestyle, and wants to share with us how she did it. So she took what worked for her, organized and dilstilled it, and named it “the kindness method”, which…
- promotes positivity not in a “head in the sand” sense but rather: you have strengths, let’s find them and use them
- offers many exploratory exercises to help you figure out what’s actually going to be best for you
- plans support in advance—you’re going to be your own greatest ally here
Basically it’s about:
- being kind to yourself rather than setting yourself up to fail, and “judging a fish by how well it can climb a tree”
- being kind to yourself by being compassionate towards your past self and moving on with lessons learned
- being kind to yourself by getting things in order for your future self, because you need to treat your future self like a loved one
In fact, why not buy a copy of this book as a gift for your future self?
Click Here To Order Your Copy of “The Kindness Method” on Amazon Today!
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No, your aches and pains don’t get worse in the cold. So why do we think they do?
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It’s cold and wet outside. As you get out of bed, you can feel it in your bones. Your right knee is flaring up again. That’ll make it harder for you to walk the dog or go to the gym. You think it must be because of the weather.
It’s a common idea, but a myth.
When we looked at the evidence, we found no direct link between most common aches and pains and the weather. In the first study of its kind, we found no direct link between the temperature or humidity with most joint or muscle aches and pains.
So why are so many of us convinced the weather’s to blame? Here’s what we think is really going on.
fongbeerredhot/Shutterstock Weather can be linked to your health
The weather is often associated with the risk of new and ongoing health conditions. For example, cold temperatures may worsen asthma symptoms. Hot temperatures increase the risk of heart problems, such as arrhythmia (irregular heartbeat), cardiac arrest and coronary heart disease.
Many people are also convinced the weather is linked to their aches and pains. For example, two in every three people with knee, hip or hand osteoarthritis say cold temperatures trigger their symptoms.
Musculoskeletal conditions affect more than seven million Australians. So we set out to find out whether weather is really the culprit behind winter flare-ups.
What we did
Very few studies have been specifically and appropriately designed to look for any direct link between weather changes and joint or muscle pain. And ours is the first to evaluate data from these particular studies.
We looked at data from more than 15,000 people from around the world. Together, these people reported more than 28,000 episodes of pain, mostly back pain, knee or hip osteoarthritis. People with rheumatoid arthritis and gout were also included.
We then compared the frequency of those pain reports between different types of weather: hot or cold, humid or dry, rainy, windy, as well as some combinations (for example, hot and humid versus cold and dry).
Bad back on a cold day? We wanted to know if the weather was really to blame. Pearl PhotoPix/Shutterstock What we found
We found changes in air temperature, humidity, air pressure and rainfall do not increase the risk of knee, hip or lower back pain symptoms and are not associated with people seeking care for a new episode of arthritis.
The results of this study suggest we do not experience joint or muscle pain flare-ups as a result of changes in the weather, and a cold day will not increase our risk of having knee or back pain.
In order words, there is no direct link between the weather and back, knee or hip pain, nor will it give you arthritis.
It is important to note, though, that very cold air temperatures (under 10°C) were rarely studied so we cannot make conclusions about worsening symptoms in more extreme changes in the weather.
The only exception to our findings was for gout, an inflammatory type of arthritis that can come and go. Here, pain increased in warmer, dry conditions.
Gout has a very different underlying biological mechanism to back pain or knee and hip osteoarthritis, which may explain our results. The combination of warm and dry weather may lead to increased dehydration and consequently increased concentration of uric acid in the blood, and deposition of uric acid crystals in the joint in people with gout, resulting in a flare-up.
Why do people blame the weather?
The weather can influence other factors and behaviours that consequently shape how we perceive and manage pain.
For example, some people may change their physical activity routine during winter, choosing the couch over the gym. And we know prolonged sitting, for instance, is directly linked to worse back pain. Others may change their sleep routine or sleep less well when it is either too cold or too warm. Once again, a bad night’s sleep can trigger your back and knee pain.
Likewise, changes in mood, often experienced in cold weather, trigger increases in both back and knee pain.
So these changes in behaviour over winter may contribute to more aches and pains, and not the weather itself.
Believing our pain will feel worse in winter (even if this is not the case) may also make us feel worse in winter. This is known as the nocebo effect.
When it’s cold outside, we may be less active. Anna Nass/Shutterstock What to do about winter aches and pains?
It’s best to focus on risk factors for pain you can control and modify, rather than ones you can’t (such as the weather).
You can:
- become more physically active. This winter, and throughout the year, aim to walk more, or talk to your health-care provider about gentle exercises you can safely do at home, with a physiotherapist, personal trainer or at the pool
- lose weight if obese or overweight, as this is linked to lower levels of joint pain and better physical function
- keep your body warm in winter if you feel some muscle tension in uncomfortably cold conditions. Also ensure your bedroom is nice and warm as we tend to sleep less well in cold rooms
- maintain a healthy diet and avoid smoking or drinking high levels of alcohol. These are among key lifestyle recommendations to better manage many types of arthritis and musculoskeletal conditions. For people with back pain, for example, a healthy lifestyle is linked with higher levels of physical function.
Manuela Ferreira, Professor of Musculoskeletal Health, Head of Musculoskeletal Program, George Institute for Global Health and Leticia Deveza, Rheumatologist and Research Fellow, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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