You go to bed exhausted, ready to enjoy a long, restful sleep… and yet, at exactly 2 a.m., your eyes open as if an invisible alarm clock has gone off. Frustrating, isn’t it? We often think, “It’s because I drank before bed!”, but behind these nighttime awakenings lies a set of everyday mechanisms, often overlooked. And the good news is: understanding what’s going on can already help improve your sleep.
What really happens in your body at night
We imagine that our body “goes on pause” when we sleep. In reality, it discreetly continues its work: it rebalances, regulates, adjusts… A true conductor! One of the most surprising phenomena concerns the way fluids are distributed.
During the day, when you’re standing, some of the fluids accumulate in your legs. Once you lie down, everything rebalances. As a result, your body works harder to manage these internal movements. For some people, this can cause slight discomfort or an urge to use the restroom sooner than expected. Nothing to worry about: it’s a normal process.
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