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Sleeping in on weekends: maybe not as bad as previously thought
People who compensated for sleep deprivation with catch-up sleep did not have an increased risk of mortality. People who consistently slept too little without ever making it up did
Jorge Marten Groen
May 122 min read


Real Results: Clients Share Their Sleep Coaching Success Stories
<p>Sleep improvement is rarely a dramatic overnight transformation. More often, it begins with quieter changes: less dread at bedtime, fewer anxious thoughts at
Jorge Marten Groen
May 85 min read


She sleeps four hours a night with the help of a pill. She’s 95
Chronic insomniacs are treated harshly in the media. We’re told that six hours of sleep damages the brain, weakens the immune system, and causes the heart to fail. That the risk of depression increases. And yet, some people still make it to 95 just fine
Jorge Marten Groen
May 73 min read


Always switched on: how hyperarousal sabotages your sleep
People with insomnia have a specific tension profile, in which sleep-related and anxiety-related forms weigh most heavily. This explains why insomnia can be so persistent
Jorge Marten Groen
May 43 min read


Chronic insomnia makes your brain four years older
A forty percent higher risk of dementia. Brains that function as if they are four years older. These are the figures from a study involving more than 2,700 adults with chronic insomnia
Jorge Marten Groen
Apr 302 min read


Bad sleep can be in your DNA, but you can often do something about it
If you think you sleep poorly because your father or mother did too, and that it’s simply “in your DNA,” some nuance is needed. Predisposition explains why you may be more vulnerable. It doesn’t necessarily explain why you’re sleeping poorly now or why it just isn’t improving.
Jorge Marten Groen
Apr 212 min read


Exhausted and yet awake, this is what goes wrong
The metaphor of the accelerator pedal and brake pedal is powerful because it provides insight. It shows that insomnia is not a lack of ability to sleep, but a disruption of balance. It’s something that arises when your system receives the right signals and nothing is standing in the way anymore
Jorge Marten Groen
Mar 193 min read


90% of the time, we live under artificial light, and our biological clock notices it
Light is a powerful signal for the body. It influences our biological clock, sleep, mood, and cognitive performance. But it’s not just about how bright the light is. It also matters when and what type of light we’re exposed to.
Jorge Marten Groen
Mar 103 min read


The silent epidemic: sleep deprivation in young people
According to the American Academy of Sleep Medicine and the American Academy of Pediatrics, young people between the ages of thirteen and eighteen need eight to ten hours of sleep per night for optimal health and development. Yet the majority do not meet this standard
Jorge Marten Groen
Mar 93 min read


The most powerful sleep intervention is too boring for words
We tend to think that fatigue is about the number of hours we sleep. Eight hours is good. Seven is borderline. Six is a problem. But what many people don’t realize is that you can sleep a perfect eight hours and still feel exhausted. Not because you lack sleep, but because you lack regularity.
Jorge Marten Groen
Mar 33 min read


Why your desire to sleep is preventing you from doing so
It’s the paradox of the insomniac: the harder you try to sleep, the more difficult it seems. But why does this happen? Why can’t we sleep, precisely when we want it so badly?
Jorge Marten Groen
Feb 181 min read


Going to the doctor with sleep problems: a logical start but not always the end
Doctors prescribe sleeping pills to one in two people who suffer from insomnia. Sleeping pills do have an effect. They calm you down. They make you drowsy. Sometimes you suddenly sleep through a few hours again. That can feel like a relief. You might sleep better, but the confidence that you can do this on your own gradually fades into the background.
Jorge Marten Groen
Feb 183 min read


How to quiet your brain at night: the power of the cognitive shuffle
Lying awake is rarely a matter of not being tired; it’s often a matter of not being able to stop thinking. Rumination — endlessly chewing over thoughts — keeps your system alert when you want to switch off. One technique that tries to break this pattern is the cognitive shuffle, developed by cognitive scientist Luc Beaudoin
Jorge Marten Groen
Feb 162 min read


Jetlag? Here’s how to let your internal clock fly along smoothly
You can reduce the effects of jet lag with a few smart hacks.
Jorge Marten Groen
Sep 16, 20253 min read


1 in 5 people relax with ASMR, so maybe you do too
For people with insomnia, ASMR can be a useful addition to a bedtime routine. It signals to the body that it’s time to sleep and helps release racing thoughts. Research shows that those sensitive to ASMR have a more active brain region associated with relaxation
Jorge Marten Groen
Sep 15, 20252 min read


Struggling with sleep? Let’s measure it
In my sleep coaching programs, I don’t treat questionnaires as just a 'test'. I use them as a starting point for meaningful change
Jorge Marten Groen
Aug 25, 20252 min read


Sleep 2.0 fits your rhythm
We’ve grown accustomed to the idea that a healthy night’s sleep means one solid block of 7 to 9 hours. But science shows what historical research has long suggested: humans may not naturally be “one-stretch sleepers.”
Jorge Marten Groen
Aug 19, 20252 min read


Do sleep supplements work? What science says (Part 1)
I will elaborate a bit more on popular sleep supplements. This is based on an article in The Washington Post, which evaluated recent scientific research on the possible positive effects of five supplements often used to improve sleep: melatonin, magnesium, probiotics, vitamin D, and ashwagandha.
Jorge Marten Groen
Aug 12, 20253 min read


A bad night doesn’t have to make a bad day
Do you remember pulling an all-nighter in the past? Did you have a bad day the next day?
Jorge Marten Groen
Aug 7, 20251 min read


Cannabis, sleep and anxiety
I sometimes see people turn to cannabis to help them sleep better. Some are enthusiastic about it—they sleep more deeply, feel calmer, and function better during the day. Others notice little difference or even feel worse. Why does it work for some but not for others?
Jorge Marten Groen
Jul 24, 20252 min read
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