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29/08/2026

If you struggle with chronic sleep issues, it is completely natural to assume that daytime fatigue is caused entirely by a lack of sleep. However, clinical neurobiology reveals a more complex picture.
Chronic insomnia is rarely just a nighttime problem. It is a 24-hour state of central nervous system hyperarousal.
When your autonomic nervous system (the part of your brain that automatically regulates things like breathing rate, heart rate, blood pressure) remains in a heightened state throughout the day:
Your body burns through cellular energy reserves at a much higher baseline rate.
Baseline stress hormones like cortisol remain elevated when they should be recovering.
Every other source of fatigue, including visual strain, blood sugar fluctuations, and mental effort, becomes magnified.
In this model, sleep disruption at night and fatigue during the day are two sides of the same coin, driven by continuous nervous system arousal.
The Takeaway:
You cannot change last night’s sleep, and you cannot force tonight’s sleep. However, you can actively manage your daytime nervous system load. Managing stress during the afternoon reduces immediate fatigue and helps lay the foundation for better sleep tonight.

Ask yourself, what are some signs that you are running in high gear during the day? Let me know down in the comments!

26/08/2026

Most people assume that if they’re exhausted during the day, it MUST be because they slept badly last night.
But clinically, sleepiness and fatigue are two entirely different things:
Sleepiness: The physiological drive to fall asleep (sleep pressure).
Fatigue: A central nervous system breakdown in processing power.
Think of fatigue like a pie chart. The sleep you got last night is only ONE slice of that pie. The rest? It’s driven by brain chemistry buildup, visual eye strain, blood sugar crashes, a nervous system running on high gear all day long, among other causes.
What factors could be driving your exhaustion?

07/08/2026

What do you think? Let me know below!

05/08/2026

An overview of sleep stages!

Did you learn anything here? Is there anything about sleep you’d like to learn about next?

01/08/2026

The ‘off switch’ idea sneaks into a lot of sleep advice, like the notion that you can just power down whenever you decide it’s bedtime. In reality your brain runs a full overnight shift of cleanup, repair, and emotional processing, whether you consciously will it or not. That’s actually good news for anyone who struggles to fall asleep on command, since sleep was never meant to be flipped on like a switch in the first place. If sleep is really an active night shift, what job do you think your brain has the most overtime on lately: memory, emotion, or repair?

29/07/2026

It’s not just “turning off.” Two systems run the show: your circadian rhythm (your internal 24-hour clock, set mainly by light) and sleep pressure (a chemical called adenosine that builds up the longer you’re awake).

Overnight, your brain cycles through light sleep, deep sleep, and REM roughly every 90 minutes — deep sleep dominates early on, REM later.

Why it matters: sleep clears waste from the brain, locks in memories, regulates mood, and restores the body.

Sleep isn’t downtime. It’s active, essential work your brain does every night. 🌙

28/07/2026

Why does insomnia stick around long after the stressful event that started it?

Sleep researchers explain this with the 3 P model.

Predisposing factors are the traits that make some people more vulnerable to begin with. A naturally anxious temperament, a family history of poor sleep, or a tendency toward a more alert nervous system.

Precipitating factors are the trigger. A new baby, a breakup, a work deadline, an illness. Something that disrupts sleep for a clear reason.

Perpetuating factors are what keep insomnia going after the original trigger is gone. Things like spending extra time in bed trying to force sleep, napping to catch up, or watching the clock at 3am. These coping attempts feel logical in the moment, but they train the brain to associate the bed with frustration instead of rest.

If you experience insomnia, take a minute to consider what are your 3P factors? What predisposes, precipitated, and perpetuates your sleep?

27/07/2026

Sleep inefficiency is one of the hallmarks of insomnia. Simply put, if you’re spending most of your night in bed not sleeping, you’re an inefficient sleeper. This becomes a problem as your brain starts to learn that your bed does not equal sleep. CBT-I aims to reestablish a strong bed = sleep relationship.
Typically, when people are inefficiently with their time in bed, that extra time in bed is not spent resting, but worrying, planning, ruminating, or any number of ways that your brain keeps itself busy. When you can sleep in bed, where does your mind go?

04/05/2026

Melatonin is one of the most widely used sleep supplements but it’s commonly misunderstood.
Melatonin is a timing hormone. Think of it like a dinner bell, it signals that it’s time to eat, but it’s not making you hungry and it’s not helping you digest your food. In the same way, melatonin tells your brain that darkness is here and sleep is coming, but it’s not treating the underlying reasons you can’t sleep.
Where it genuinely helps is jet lag, shift work, or a delayed sleep schedule; situations where your body clock has actually shifted.
If you do use it, less is more. Research suggests 1–3mg taken 1–2 hours before bed is enough for most people. The high doses sold in most pharmacies aren’t doing you any extra favours.
But if you have chronic insomnia - trouble falling asleep, staying asleep, or waking too early on a regular basis - melatonin isn’t designed for that. There’s a treatment that is.
Send me a message if you want to talk or have questions about your sleep or insomnia.
InsomniaTreatment

29/04/2026

Your body runs on a 24-hour internal clock, and morning sunlight is the single most powerful way to keep it on time.
When light enters your eyes in the morning, it anchors your circadian rhythm to the actual time of day. Skip it consistently, and that clock starts to drift. Your sleep window shifts later and later, and you end up alert at midnight and groggy at 7am, stuck in a cycle that feels impossible to break.
(Thanks to for bringing this into the mainstream, his work ha s helped a lot of people take this seriously.)
How to do it:
• Get outside within an hour of waking
• Sunny day: 5–10 minutes
• Cloudy day: 10–20 minutes
• No sunglasses, the light needs to reach your retinas
• A window doesn’t count, glass filters the wavelengths that matter
This won’t fix insomnia on its own. But it’s one of the foundational habits we build in CBT-I, because you can’t regulate your nights without anchoring your mornings first.

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