Poor Sleep: It's Rewiring Your Brain
I have lived through versions of this in Singapore, in New York, in Brussels — different climates, same result.
Poor Sleep: It's Rewiring Your Brain
There is a particular kind of exhaustion that Malta summers produce — not the dramatic collapse, but the slow erosion. The air stays warm after midnight. The body never quite cools. You lie there, not quite asleep, not quite awake, convinced you are resting when you are doing something closer to waiting.
I have lived through versions of this in Singapore, in New York, in Brussels — different climates, same result. The hours pass. The morning arrives and you are technically upright but something is missing, some precision of thought, some patience you were sure you had.
It turns out this is not just fatigue. New research into sleep deprivation is showing that poor or fragmented sleep doesn't simply leave you tired — it actively alters the way your brain processes information. The structural changes are measurable. Connectivity between the regions responsible for emotional regulation and rational decision-making weakens. Memory consolidation, which happens almost entirely during deep sleep, is interrupted. The brain that wakes without sufficient rest is not the same brain that went to bed. It is a slightly different instrument, tuned slightly differently, and not in the direction you want.
What the researchers find interesting — and what I find quietly alarming — is the cumulative nature of the damage. A single bad night is an inconvenience. A pattern of insufficient sleep, even moderate insufficiency, begins to look more like a chronic condition. The brain adapts to the compromise, which sounds almost useful until you understand that adapting to poor sleep means lowering your baseline, not recovering it.
There is something in this that the GLP-1 conversation and the weight-loss drug headlines never quite reach. We optimise so many things — what we eat, how we move, which supplements we take — and then we give ourselves five and a half hours on a warm Tuesday and expect the system to hold. It doesn't hold. The body is not that forgiving, and the brain least of all.
Carly Simon announced her Parkinson's and cancer diagnoses this week, at 80, with what I can only describe as grace under genuine weight. She is releasing an album. There is something instructive there, though I am still deciding exactly what.
The one thing you can do: tonight, before you open anything with a screen, drop the room temperature by whatever means you have — fan, open window, cold shower. Your core body temperature needs to fall to initiate deep sleep. In a Maltese July, that requires intention. Give it that.
