Nat Marshall
@natsleep.bsky.social
Sleep epidemiologist and clinical triallist at the Woolcock Institute and Professor at Macquarie University, Sydney, Australia. Editor at SLEEP and J Sleep Res. #SleepPeeps Clinical Researcher Development. Hurkle-durkler. Statistical grief counselor
Definately my weirdest scientific idea yet: Can humans sleep one half of their brains at a time when they sleep in water, like dolphins do? Certainly no proof of that yet - but we have a method to maybe catch it. And, Yes, a human can fall asleep floating in a fluid. lnkd.in/gUHSRjug
LinkedIn
This link will take you to a page that’s not on LinkedIn
lnkd.in
July 29, 2025 at 3:26 AM
Definately my weirdest scientific idea yet: Can humans sleep one half of their brains at a time when they sleep in water, like dolphins do? Certainly no proof of that yet - but we have a method to maybe catch it. And, Yes, a human can fall asleep floating in a fluid. lnkd.in/gUHSRjug
Cannabinoid products may reduce total sleep time in adults with insomnia: new study
theconversation.com/cannabinoid-...
theconversation.com/cannabinoid-...
Cannabinoid products may reduce total sleep time in adults with insomnia: new study
Any reduction in sleep time for people with clinical insomnia could be concerning.
theconversation.com
July 10, 2025 at 12:39 AM
Cannabinoid products may reduce total sleep time in adults with insomnia: new study
theconversation.com/cannabinoid-...
theconversation.com/cannabinoid-...
Reposted by Nat Marshall
Venn (1866) described the problem with the "sharpshooter fallacy": 🎯 painting the bullseye on the spot where a bullet hits a door.
In psychology, we call this "HARKing" — Hypothesizing After Results Are Known.
In psychology, we call this "HARKing" — Hypothesizing After Results Are Known.
June 13, 2025 at 5:18 PM
Venn (1866) described the problem with the "sharpshooter fallacy": 🎯 painting the bullseye on the spot where a bullet hits a door.
In psychology, we call this "HARKing" — Hypothesizing After Results Are Known.
In psychology, we call this "HARKing" — Hypothesizing After Results Are Known.
Reposted by Nat Marshall
In the TAK-861-2001 trial involving 112 participants with narcolepsy type 1, oveporexton significantly improved measures of wakefulness, sleepiness, and cataplexy over a period of 8 weeks. Full trial results: nej.md/3ZdlKNi
#MedSky #NeuroSky
#MedSky #NeuroSky
May 14, 2025 at 9:40 PM
In the TAK-861-2001 trial involving 112 participants with narcolepsy type 1, oveporexton significantly improved measures of wakefulness, sleepiness, and cataplexy over a period of 8 weeks. Full trial results: nej.md/3ZdlKNi
#MedSky #NeuroSky
#MedSky #NeuroSky
Facepalm
May 13, 2025 at 5:16 AM
Facepalm
Reposted by Nat Marshall
There you have it: BEDMED published in @jama.com
jamanetwork.com/journals/jam...
h/t @drjmluther.bsky.social
No difference in bedtime versus morning BP meds - as expected
#NephSky #Hypertension
1/
jamanetwork.com/journals/jam...
h/t @drjmluther.bsky.social
No difference in bedtime versus morning BP meds - as expected
#NephSky #Hypertension
1/
May 12, 2025 at 9:46 PM
There you have it: BEDMED published in @jama.com
jamanetwork.com/journals/jam...
h/t @drjmluther.bsky.social
No difference in bedtime versus morning BP meds - as expected
#NephSky #Hypertension
1/
jamanetwork.com/journals/jam...
h/t @drjmluther.bsky.social
No difference in bedtime versus morning BP meds - as expected
#NephSky #Hypertension
1/
The new SPIRIT statement 2025 for how to write your clinical trial protocol www.bmj.com/content/389/...
SPIRIT 2025 explanation and elaboration: updated guideline for protocols of randomised trials
High quality protocols facilitate proper planning, conduct, reporting, and external review of randomised trials, yet their completeness varies and key elements are often not considered. To strengthen ...
www.bmj.com
May 5, 2025 at 12:53 AM
The new SPIRIT statement 2025 for how to write your clinical trial protocol www.bmj.com/content/389/...
Reposted by Nat Marshall
Improving the completeness and transparency of protocols and reports of randomized trials: SPIRIT 2025 and CONSORT 2025 - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...
Improving the completeness and transparency of protocols and reports of randomized trials: SPIRIT 2025 and CONSORT 2025
We developed SPIRIT 2025 and CONSORT 2025 together and in a similar manner. To ascertain
new evidence to inform both updates we completed two scoping reviews. The results
of the scoping reviews helped...
www.jclinepi.com
April 17, 2025 at 7:41 PM
Improving the completeness and transparency of protocols and reports of randomized trials: SPIRIT 2025 and CONSORT 2025 - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...
Reposted by Nat Marshall
Authors, editors, reviewers, and other potential users should use CONSORT 2025 when writing and evaluating manuscripts of randomized trials to ensure that trial reports are clear and transparent.
Learn more in this Special Communication. https://ja.ma/3Yyu0Hh
Learn more in this Special Communication. https://ja.ma/3Yyu0Hh
April 14, 2025 at 10:20 PM
Authors, editors, reviewers, and other potential users should use CONSORT 2025 when writing and evaluating manuscripts of randomized trials to ensure that trial reports are clear and transparent.
Learn more in this Special Communication. https://ja.ma/3Yyu0Hh
Learn more in this Special Communication. https://ja.ma/3Yyu0Hh
Reposted by Nat Marshall
Risk of bias assessment of randomised controlled trials has become an essential step in the systematic review process.
A new tool allows users to assess risk of bias of RCTs included in systematic reviews in a user friendly way
www.bmj.com/content/388/...
A new tool allows users to assess risk of bias of RCTs included in systematic reviews in a user friendly way
www.bmj.com/content/388/...
March 25, 2025 at 6:24 PM
Risk of bias assessment of randomised controlled trials has become an essential step in the systematic review process.
A new tool allows users to assess risk of bias of RCTs included in systematic reviews in a user friendly way
www.bmj.com/content/388/...
A new tool allows users to assess risk of bias of RCTs included in systematic reviews in a user friendly way
www.bmj.com/content/388/...
What role for wakefulness promotors? How well do they really work and what are the side-effects? Julia Chapman and I's latest editorial discussing the latest trial evidence authors.elsevier.com/c/1kkb52p-lG...
authors.elsevier.com
March 10, 2025 at 10:10 PM
What role for wakefulness promotors? How well do they really work and what are the side-effects? Julia Chapman and I's latest editorial discussing the latest trial evidence authors.elsevier.com/c/1kkb52p-lG...
Do modern post-industrialised society members sleep more than hunter-gatherers? Somewhat accurately partially quoted in New Scientist. Big sample sizes don't fix the non-representative sampling problem. www.newscientist.com/article/2469...
People in industrial societies get more sleep than hunter-gatherers
Individuals in industrialised societies seem to sleep for longer than people in non-industrialised ones, but their circadian rhythms are more out of sync
www.newscientist.com
March 4, 2025 at 10:09 PM
Do modern post-industrialised society members sleep more than hunter-gatherers? Somewhat accurately partially quoted in New Scientist. Big sample sizes don't fix the non-representative sampling problem. www.newscientist.com/article/2469...
Reposted by Nat Marshall
Hurkle-durkle. I'm a year late to the party but this is a useful Scots word to know #SleepPeeps www.scotsman.com/news/scotlan...
Do you hurkle-durkle? What you should know about the Scots word for lying in bed
If you’re active on social media, there’s a good chance that you’ve seen this Scots word floating around.
www.scotsman.com
January 23, 2025 at 12:15 AM
Hurkle-durkle. I'm a year late to the party but this is a useful Scots word to know #SleepPeeps www.scotsman.com/news/scotlan...
Have spent an entertaining 20 minutes trying to convince chat GPT to stop lying about it's reference section on a topic I know quite well. No matter what it tells you it's making up references. It seems to not be able to not make up references.
January 8, 2025 at 2:41 AM
Have spent an entertaining 20 minutes trying to convince chat GPT to stop lying about it's reference section on a topic I know quite well. No matter what it tells you it's making up references. It seems to not be able to not make up references.
Can people around retirement age cope with a 12 week protocol where they take high dose melatonin (25mg) every day? Yes they can. A bit covid-delayed but we got there. Well done Zoe Menczel Schrire! onlinelibrary.wiley.com/doi/10.1111/... #sleeppeeps #melatonin
3‐Month Melatonin Supplementation to Reduce Brain Oxidative Stress and Improve Sleep in Mild Cognitive Impairment: A Randomised Controlled Feasibility Trial
Melatonin has multiple proposed therapeutic benefits including antioxidant properties, circadian rhythm synchronisation and sleep promotion. Since these areas are also recognised risk factors for dem...
onlinelibrary.wiley.com
January 5, 2025 at 11:33 PM
Can people around retirement age cope with a 12 week protocol where they take high dose melatonin (25mg) every day? Yes they can. A bit covid-delayed but we got there. Well done Zoe Menczel Schrire! onlinelibrary.wiley.com/doi/10.1111/... #sleeppeeps #melatonin
All my t-shirts are tax deductible
December 24, 2024 at 2:36 AM
All my t-shirts are tax deductible
Reposted by Nat Marshall
Academics will be like "finished is better than perfect" and then not finish
December 3, 2024 at 3:39 PM
Academics will be like "finished is better than perfect" and then not finish
Reposted by Nat Marshall
Following on from my last post on Charles Darwin's walking stick, here's a letter he wrote in 1861: "But I am very poorly today and very stupid and hate everybody and everything."
Same, Darwin. Same.
Same, Darwin. Same.
November 28, 2024 at 1:19 PM
Following on from my last post on Charles Darwin's walking stick, here's a letter he wrote in 1861: "But I am very poorly today and very stupid and hate everybody and everything."
Same, Darwin. Same.
Same, Darwin. Same.
Sometimes you find the opposite of what you expect and everybody else expects #SleepPeeps doi.org/10.1080/0742...
The effect of restricted and free-living conditions on light exposure and sleep in older adults
During the COVID-19 pandemic, studies reported that restricted living conditions were associated with worse subjective sleep quality. This effect might have been caused by reduced light exposure du...
doi.org
November 27, 2024 at 12:07 AM
Sometimes you find the opposite of what you expect and everybody else expects #SleepPeeps doi.org/10.1080/0742...
Can you measure somebody sleeping while floating in a fluid? Yes, you can. osf.io/preprints/os... @sleepjournals.bsky.social #sleeppeeps
OSF
osf.io
November 26, 2024 at 9:38 PM
Can you measure somebody sleeping while floating in a fluid? Yes, you can. osf.io/preprints/os... @sleepjournals.bsky.social #sleeppeeps
By the time you grow that mandarin tree for your mandarin loving kids they won’t like mandarins anymore
November 23, 2024 at 10:06 PM
By the time you grow that mandarin tree for your mandarin loving kids they won’t like mandarins anymore
My colleague Camilla Hoyos explains the continuing search for evidence that cannabinoids (and which ones!) might help people with insomnia lighthouse.mq.edu.au/article/octo...
Please explain: Is cannabis the answer to insomnia?
lighthouse.mq.edu.au
November 20, 2024 at 10:08 PM
My colleague Camilla Hoyos explains the continuing search for evidence that cannabinoids (and which ones!) might help people with insomnia lighthouse.mq.edu.au/article/octo...