24/12/2025
As the darker season settles in, our biology quietly shifts — and many people feel it.
With less daylight, our serotonin (our mood + motivation neurotransmitter) naturally drops, while melatonin (our sleep hormone) rises earlier and stays higher. This combination can leave us feeling slower, hungrier, and less driven than usual.
A few key changes that often happen in the dark months:
• Lower serotonin → dips in mood, motivation, and focus
• Higher melatonin → increased tiredness + tougher mornings
• Disrupted circadian rhythm → irregular energy + carb cravings for quick fuel
• Reduced daylight exposure → appetite hormones shift, increasing hunger
One simple habit can make a huge difference: go outside when it’s light. Even 10–20 minutes of morning daylight helps anchor your circadian rhythm, boosts serotonin, reduces daytime sleepiness, and sets you up for better sleep later.
You might notice your mornings feel heavier, motivation dips, and your appetite leans toward warm, starchy, comforting foods. Mood can flatten, and even simple tasks might feel more effortful. None of this is a personal failing — it’s your biology adjusting to the season.
The good news? You can support your system with a few gentle habits.
Keeping steady sleep and meal times, moving your body (even lightly), and eating regular, balanced meals helps stabilise energy, cravings, and mood. In the evening, dimmer and warmer light allows melatonin to rise naturally.
What tends to make this season feel heavier is:
• Staying indoors most of the day
• Late-night screen exposure
• Skipping meals or relying only on snacks
• High stress and overstimulation
Be kind to yourself during this time. Your body isn’t “unmotivated,” it’s responding to nature’s cues. With the right support, you can move through the darker months with steadier energy and a more balanced mood.
