Want to sleep longer? Adding mini-bursts of exercise to your evening routine can help – new study
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Exercising before bed has long been discouraged as the body doesn’t have time to wind down before the lights go out.
But new research has found breaking up a quiet, sedentary evening of watching television with short bursts of resistance exercise can lead to longer periods of sleep.
Adults spend almost one third of the 24-hour day sleeping. But the quality and length of sleep can affect long-term health. Sleeping too little or waking often in the night is associated with an increased risk of heart disease and diabetes.
Physical activity during the day can help improve sleep. However, current recommendations discourage intense exercise before going to bed as it can increase a person’s heart rate and core temperature, which can ultimately disrupt sleep.
Nighttime habits
For many, the longest period of uninterrupted sitting happens at home in the evening. People also usually consume their largest meal during this time (or snack throughout the evening).
Insulin (the hormone that helps to remove sugar from the blood stream) tends to be at a lower level in the evening than in the morning.
Together these factors promote elevated blood sugar levels, which over the long term can be bad for a person’s health.
Our previous research found interrupting evening sitting every 30 minutes with three minutes of resistance exercise reduces the amount of sugar in the bloodstream after eating a meal.
But because sleep guidelines currently discourage exercising in the hours before going to sleep, we wanted to know if frequently performing these short bursts of light activity in the evening would affect sleep.
Activity breaks for better sleep
In our latest research, we asked 30 adults to complete two sessions based in a laboratory.
During one session the adults sat continuously for a four-hour period while watching streaming services. During the other session, they interrupted sitting by performing three minutes of body-weight resistance exercises (squats, calf raises and hip extensions) every 30 minutes.
After these sessions, participants went home to their normal life routines. Their sleep that evening was measured using a wrist monitor.
Our research found the quality of sleep (measured by how many times they woke in the night and the length of these awakenings) was the same after the two sessions. But the night after the participants did the exercise “activity breaks” they slept for almost 30 minutes longer.
Identifying the biological reasons for the extended sleep in our study requires further research.
But regardless of the reason, if activity breaks can extend sleep duration, then getting up and moving at regular intervals in the evening is likely to have clear health benefits.
Time to revisit guidelines
These results add to earlier work suggesting current sleep guidelines, which discourage evening exercise before bed, may need to be reviewed.
As the activity breaks were performed in a highly controlled laboratory environment, future research should explore how activity breaks performed in real life affect peoples sleep.
We selected simple, body-weight exercises to use in this study as they don’t require people to interrupt the show they may be watching, and don’t require a large space or equipment.
If people wanted to incorporate activity breaks in their own evening routines, they could probably get the same benefit from other types of exercise. For example, marching on the spot, walking up and down stairs, or even dancing in the living room.
The key is to frequently interrupt evening sitting time, with a little bit of whole-body movement at regular intervals.
In the long run, performing activity breaks may improve health by improving sleep and post-meal blood sugar levels. The most important thing is to get up frequently and move the body, in a way the works best for a person’s individual household.
Jennifer Gale, PhD candidate, Department of Human Nutrition, University of Otago and Meredith Peddie, Senior Lecturer, Department of Human Nutrition, University of Otago
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Metabolism Reset Diet – by Alan Christianson
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The liver is an incredible organ that does a very important job, but what’s not generally talked about is how we can help it… Beyond the obvious “try to not poison it too much with alcohol, tobacco, etc”. But what can we do that’s actually positive for it?
That’s what Alan Christianson offers in this book.
Now, usually when someone speaks of a “four week cleanse” as this book advertises on its front cover, it’s a lot of bunk. The liver cleanses itself, and the liver and kidneys between them (along with some other organs and processes) detoxify your body for you. No amount of celery juice will do that. However, this book does better than that:
What it’s about, is not really about trying to do a “detox” at all, so much as supporting your liver function by:
- Giving your liver what it needs to regenerate (mostly: protein)
- Not over-taxing your liver while it does so
The liver is a self-regenerating organ (the mythological story of Prometheus aside, here in real life it can regenerate up to 80% of itself, given the opportunity), so whatever the current state of your liver, it’s probably not too late to fix it.
Maybe you’ve been drinking a little too much, or maybe you’ve been taking some meds that have hobbled it a bit (some medications strain the liver rather), or maybe your diet hasn’t been great. Christianson invites you to draw a line under that, and move forwards:
The book gives an overview of the science involved, and explains about the liver’s role in metabolism (hence the promised weight loss benefits) and our dietary habits’ impact on liver function. This is about what we eat, and also about when we eat it, and how and when our body metabolizes that.
Christianson also provides meal ideas and recipes. If we’re honest (and we always are), the science/principles part of the book are worth a lot more than the meal-plan part of the book, though.
In short: a great book for understanding how the liver works and how we can help it do its job effectively.
Click here to check out “The Metabolism Reset Diet” on Amazon today!
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‘I keep away from people’ – combined vision and hearing loss is isolating more and more older Australians
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Our ageing population brings a growing crisis: people over 65 are at greater risk of dual sensory impairment (also known as “deafblindness” or combined vision and hearing loss).
Some 66% of people over 60 have hearing loss and 33% of older Australians have low vision. Estimates suggest more than a quarter of Australians over 80 are living with dual sensory impairment.
Combined vision and hearing loss describes any degree of sight and hearing loss, so neither sense can compensate for the other. Dual sensory impairment can occur at any point in life but is increasingly common as people get older.
The experience can make older people feel isolated and unable to participate in important conversations, including about their health.
bricolage/Shutterstock Causes and conditions
Conditions related to hearing and vision impairment often increase as we age – but many of these changes are subtle.
Hearing loss can start as early as our 50s and often accompany other age-related visual changes, such as age-related macular degeneration.
Other age-related conditions are frequently prioritised by patients, doctors or carers, such as diabetes or heart disease. Vision and hearing changes can be easy to overlook or accept as a normal aspect of ageing. As an older person we interviewed for our research told us
I don’t see too good or hear too well. It’s just part of old age.
An invisible disability
Dual sensory impairment has a significant and negative impact in all aspects of a person’s life. It reduces access to information, mobility and orientation, impacts social activities and communication, making it difficult for older adults to manage.
It is underdiagnosed, underrecognised and sometimes misattributed (for example, to cognitive impairment or decline). However, there is also growing evidence of links between dementia and dual sensory loss. If left untreated or without appropriate support, dual sensory impairment diminishes the capacity of older people to live independently, feel happy and be safe.
A dearth of specific resources to educate and support older Australians with their dual sensory impairment means when older people do raise the issue, their GP or health professional may not understand its significance or where to refer them. One older person told us:
There’s another thing too about the GP, the sort of mentality ‘well what do you expect? You’re 95.’ Hearing and vision loss in old age is not seen as a disability, it’s seen as something else.
Isolated yet more dependent on others
Global trends show a worrying conundrum. Older people with dual sensory impairment become more socially isolated, which impacts their mental health and wellbeing. At the same time they can become increasingly dependent on other people to help them navigate and manage day-to-day activities with limited sight and hearing.
One aspect of this is how effectively they can comprehend and communicate in a health-care setting. Recent research shows doctors and nurses in hospitals aren’t making themselves understood to most of their patients with dual sensory impairment. Good communication in the health context is about more than just “knowing what is going on”, researchers note. It facilitates:
- shorter hospital stays
- fewer re-admissions
- reduced emergency room visits
- better treatment adherence and medical follow up
- less unnecessary diagnostic testing
- improved health-care outcomes.
‘Too hard’
Globally, there is a better understanding of how important it is to maintain active social lives as people age. But this is difficult for older adults with dual sensory loss. One person told us
I don’t particularly want to mix with people. Too hard, because they can’t understand. I can no longer now walk into that room, see nothing, find my seat and not recognise [or hear] people.
Again, these experiences increase reliance on family. But caring in this context is tough and largely hidden. Family members describe being the “eyes and ears” for their loved one. It’s a 24/7 role which can bring frustration, social isolation and depression for carers too. One spouse told us:
He doesn’t talk anymore much, because he doesn’t know whether [people are] talking to him, unless they use his name, he’s unaware they’re speaking to him, so he might ignore people and so on. And in the end, I noticed people weren’t even bothering him to talk, so now I refuse to go. Because I don’t think it’s fair.
Dual sensory loss can be isolating for older people and carers. Synthex/Shutterstock So, what can we do?
Dual sensory impairment is a growing problem with potentially devastating impacts.
It should be considered a unique and distinct disability in all relevant protections and policies. This includes the right to dedicated diagnosis and support, accessibility provisions and specialised skill development for health and social professionals and carers.
We need to develop resources to help people with dual sensory impairment and their families and carers understand the condition, what it means and how everyone can be supported. This could include communication adaptation, such as social haptics (communicating using touch) and specialised support for older adults to navigate health care.
Increasing awareness and understanding of dual sensory impairment will also help those impacted with everyday engagement with the world around them – rather than the isolation many feel now.
Moira Dunsmore, Senior Lecturer, Sydney Nursing School, Faculty of Medicine and Health, University of Sydney, University of Sydney; Annmaree Watharow, Lived Experience Research Fellow, Centre for Disability Research and Policy, University of Sydney, and Emily Kecman, Postdoctoral research fellow, Department of Linguistics, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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What Your Hands Can Tell You About Your Health
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Dr. Siobhan Deshauer tells us what our hands say about our health—she’s not practicing palmistry though; she’s a rheumatologist, and everything here is about clinical signs of health/disease.
The signs include…
“Spider fingers” (which your writer here has; I always look like I’m ready to cast a spell of some kind), and that’s really the medical name, or arachnodactyly for those who like to get Greek about it. It’s about elongated digits. Elongated other bones too, typically, but the hands are where it’s most noticeable.
The tests:
- Make a fist with your thumb inside (the way you were told never to punch); does your thumb poke out the side notably past the edge of your hand, unassisted (i.e., don’t poke it, just let it rest where it goes to naturally)?
- Take hold of one of your wrists with the fingers of the other hand, wrapping them around. If they reach, that’s normal; if there’s a notable overlap, we’re in Spidey-territory now.
If both of those are positive results for you, Dr. Deshauer recommends getting a genetic test to see if you have Marfan syndrome, because…
Arachnodactyly often comes from a genetic condition called Marfan syndrome, and as well as the elongated digits of arachnodactyly, Marfan syndrome affects the elastic fibers of the body, and comes with the trade-off of an increased risk of assorted kinds of sudden death (if something goes “ping” where it shouldn’t, like the heart or lungs).
But it can also come from Ehlers-Danlos Syndrome!
EDS is characterized by hypermobility of joints, meaning that they are easily flexed past the normal human limit, and/but also easily dislocated.
The tests:
- Put your hand flat on a surface, and using your other hand, see how far back your fingers will bend (without discomfort, please); do they go further than 90°?
- Can you touch your thumb to your wrist* (on the same side?)
*She says “wrist”; for this arachnodactylic writer here it’s halfway down my forearm, but you get the idea
For many people this is a mere quirk and inconvenience, for others it can be more serious and a cause of eventual chronic pain, and for a few, it can be very serious and come with cardiovascular problems (similar to the Marfan syndrome issues above). This latter is usually diagnosed early in life, though, such as when a child comes in with an aneurysm, or there’s a family history of it. Another thing to watch out for!
Check out the video for more information on these, as well as what our fingerprints can mean, indicators of diabetes (specifically, a test for diabetic cheiroarthropathy that you can do at home, like the tests above), carpal tunnel syndrome, Raynaud phenomenon, and more!
She covers 10 main medical conditions in total:
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Want to read more?
- We Are Such Stuff As Fish Are Made Of ← because collagen comes up a lot in the video
- How To Really Look After Your Joints
Take care!
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Not all ultra-processed foods are bad for your health, whatever you might have heard
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In recent years, there’s been increasing hype about the potential health risks associated with so-called “ultra-processed” foods.
But new evidence published this week found not all “ultra-processed” foods are linked to poor health. That includes the mass-produced wholegrain bread you buy from the supermarket.
While this newly published research and associated editorial are unlikely to end the wrangling about how best to define unhealthy foods and diets, it’s critical those debates don’t delay the implementation of policies that are likely to actually improve our diets.
What are ultra-processed foods?
Ultra-processed foods are industrially produced using a variety of processing techniques. They typically include ingredients that can’t be found in a home kitchen, such as preservatives, emulsifiers, sweeteners and/or artificial colours.
Common examples of ultra-processed foods include packaged chips, flavoured yoghurts, soft drinks, sausages and mass-produced packaged wholegrain bread.
In many other countries, ultra-processed foods make up a large proportion of what people eat. A recent study estimated they make up an average of 42% of total energy intake in Australia.
How do ultra-processed foods affect our health?
Previous studies have linked increased consumption of ultra-processed food with poorer health. High consumption of ultra-processed food, for example, has been associated with a higher risk of type 2 diabetes, and death from heart disease and stroke.
Ultra-processed foods are typically high in energy, added sugars, salt and/or unhealthy fats. These have long been recognised as risk factors for a range of diseases.
Ultra-processed foods are usually high is energy, salt, fat, or sugar. Olga Dubravina/Shutterstock It has also been suggested that structural changes that happen to ultra-processed foods as part of the manufacturing process may lead you to eat more than you should. Potential explanations are that, due to the way they’re made, the foods are quicker to eat and more palatable.
It’s also possible certain food additives may impair normal body functions, such as the way our cells reproduce.
Is it harmful? It depends on the food’s nutrients
The new paper just published used 30 years of data from two large US cohort studies to evaluate the relationship between ultra-processed food consumption and long-term health. The study tried to disentangle the effects of the manufacturing process itself from the nutrient profile of foods.
The study found a small increase in the risk of early death with higher ultra-processed food consumption.
But importantly, the authors also looked at diet quality. They found that for people who had high quality diets (high in fruit, vegetables, wholegrains, as well as healthy fats, and low in sugary drinks, salt, and red and processed meat), there was no clear association between the amount of ultra-processed food they ate and risk of premature death.
This suggests overall diet quality has a stronger influence on long-term health than ultra-processed food consumption.
People who consume a healthy diet overall but still eat ultra-processed foods aren’t at greater risk of early death. Grusho Anna/Shutterstock When the researchers analysed ultra-processed foods by sub-category, mass-produced wholegrain products, such as supermarket wholegrain breads and wholegrain breakfast cereals, were not associated with poorer health.
This finding matches another recent study that suggests ultra-processed wholegrain foods are not a driver of poor health.
The authors concluded, while there was some support for limiting consumption of certain types of ultra-processed food for long-term health, not all ultra-processed food products should be universally restricted.
Should dietary guidelines advise against ultra-processed foods?
Existing national dietary guidelines have been developed and refined based on decades of nutrition evidence.
Much of the recent evidence related to ultra-processed foods tells us what we already knew: that products like soft drinks, alcohol and processed meats are bad for health.
Dietary guidelines generally already advise to eat mostly whole foods and to limit consumption of highly processed foods that are high in refined grains, saturated fat, sugar and salt.
But some nutrition researchers have called for dietary guidelines to be amended to recommend avoiding ultra-processed foods.
Based on the available evidence, it would be difficult to justify adding a sweeping statement about avoiding all ultra-processed foods.
Advice to avoid all ultra-processed foods would likely unfairly impact people on low-incomes, as many ultra-processed foods, such as supermarket breads, are relatively affordable and convenient.
Wholegrain breads also provide important nutrients, such as fibre. In many countries, bread is the biggest contributor to fibre intake. So it would be problematic to recommend avoiding supermarket wholegrain bread just because it’s ultra-processed.
So how can we improve our diets?
There is strong consensus on the need to implement evidence-based policies to improve population diets. This includes legislation to restrict children’s exposure to the marketing of unhealthy foods and brands, mandatory Health Star Rating nutrition labelling and taxes on sugary drinks.
Taxes on sugary drinks would reduce their consumption. MDV Edwards/Shutterstock These policies are underpinned by well-established systems for classifying the healthiness of foods. If new evidence unfolds about mechanisms by which ultra-processed foods drive health harms, these classification systems can be updated to reflect such evidence. If specific additives are found to be harmful to health, for example, this evidence can be incorporated into existing nutrient profiling systems, such as the Health Star Rating food labelling scheme.
Accordingly, policymakers can confidently progress food policy implementation using the tools for classifying the healthiness of foods that we already have.
Unhealthy diets and obesity are among the largest contributors to poor health. We can’t let the hype and academic debate around “ultra-processed” foods delay implementation of globally recommended policies for improving population diets.
Gary Sacks, Professor of Public Health Policy, Deakin University; Kathryn Backholer, Co-Director, Global Centre for Preventive Health and Nutrition, Deakin University; Kathryn Bradbury, Senior Research Fellow in the School of Population Health, University of Auckland, Waipapa Taumata Rau, and Sally Mackay, Senior Lecturer Epidemiology and Biostatistics, University of Auckland, Waipapa Taumata Rau
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Alzheimer’s: The Bad News And The Good
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Dr. Devi’s Spectrum of Hope
This is Dr. Gayatri Devi. She’s a neurologist, board-certified in neurology, pain medicine, psychiatry, brain injury medicine, and behavioral neurology.
She’s also a Clinical Professor of Neurology, and Director of Long Island Alzheimer’s Disease Center, Fellow of the American Academy of Neurology, and we could continue all day with her qualifications, awards and achievements but then we’d run out of space. Suffice it to say, she knows her stuff.
Especially when it comes to the optimal treatment of stroke, cognitive loss, and pain.
In her own words:
❝Helping folks live their best lives—by diagnosing and managing complex neurologic disorders—that’s my job. Few things are more fulfilling! For nearly thirty years, my focus has been on brain health, concussions, Alzheimer’s and other dementias, menopause related memory loss, and pain.❞
Alzheimer’s is more common than you might think
According to Dr. Devi,
❝97% of patients with mild Alzheimer’s disease don’t even get diagnosed in their internist offices, and half of patients with moderate Alzheimer’s don’t get diagnosed.
What that means is that the percentage of people that we think about when we think about Alzheimer’s—the people in the nursing home—that’s a very, very small fraction of the entirety of the people who have the condition❞
As for what she would consider the real figures, she puts it nearer 1 in 10 adults aged 65 and older.
Source: Neurologist dispels myths about Alzheimer’s disease
Her most critical advice? Reallocate your worry.
A lot of people understandably worry about a genetic predisposition to Alzheimer’s, especially if an older relative died that way.
See also: Alzheimer’s, Genes, & You
However, Dr. Devi points out that under 5% of Alzheimer’s cases are from genetics, and the majority of Alzheimer’s cases can be prevented be lifestyle interventions.
See also: Reduce Your Alzheimer’s Risk
Lastly, she wants us to skip the stigma
Outside of her clinical practice and academic work, this is one of the biggest things she works on, reducing the stigma attached to Alzheimer’s both publicly and professionally:
Alzheimer’s Disease in Physicians: Assessing Professional Competence and Tempering Stigma
Want more from Dr. Devi?
You might enjoy this interview:
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And here’s her book:
Enjoy!
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Securely Attached –
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A lot of books on attachment theory are quite difficult to read. They’re often either too clinical with too much jargon that can feel like incomprehensible psychobabble, or else too wishy-washy and it starts to sound like a horoscope for psychology enthusiasts.
This one does it better.
The author gives us a clear overview and outline of attachment theory, with minimal jargon and/but clearly defined terms, and—which is a boon for anyone struggling to remember which general attachment pattern is which—color-codes everything consistently along the way. This is one reason that we recommend getting a print copy of the book, not the e-book.
The other reason to invest in the print copy rather than the e-book is the option to use parts of it as a workbook directly—though if preferred, one can simply take the prompts and use them, without writing in the book, of course.
It’s hard to say what the greatest value of this book is because there are two very strong candidates:
- Super-clear and easy explanation of Attachment Theory, in a way that actually makes sense and will stick
- Excellent actually helpful advice on improving how we use the knowledge that we now have of our own attachment patterns and those of others
Bottom line: if you’d like to better understand Attachment Theory and apply it to your life, but have been put off by other presentations of it, this is the most user-friendly, no-BS version that this reviewer has seen.
Click here to check out Securely Attached, and upgrade your relationship(s)!
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