If you have found it harder to get out of bed or felt more lethargic recently, it is not “laziness.” Your body is reacting to a shift in its internal environment. Understanding the biology behind this can help you be a little kinder to yourself during the darker months.
1. The Circadian Rhythm & The “Winter Blues”
Your body operates on a 24-hour internal clock called the Circadian Rhythm, which is primarily governed by light. In November, the decrease in sunlight triggers two key shifts in your brain chemistry:
- Melatonin Spike: This hormone regulates sleep. In the dark, your body produces more of it. Because it gets dark so early in November, your body may start producing melatonin earlier in the afternoon, leading to that heavy, “sluggish” feeling long before bedtime.
- Serotonin Dip: Often called the “feel-good” hormone, serotonin levels are closely linked to sunlight exposure. Less light can lead to a drop in serotonin, which affects both your mood and your motivation to move.
2. Movement as a “Biological Reset”
Rather than seeing exercise as another chore on your list, try viewing it as a tool to help reset your internal clock. Research published in the Journal of Biological Rhythms suggests that consistent, timed movement can help “phase-advance” your circadian rhythm, making it easier to wake up and feel alert during the day.
In November, we don’t necessarily need “intensity”—we need consistency and light. Even a 10-minute walk during your lunch break provides enough lux (light intensity) to suppress daytime melatonin and boost your serotonin.
3. A Softer Approach to Your Routine
This is the time of year to listen to your body. If a heavy lifting session feels like too much, that’s okay. The goal is simply to keep the “habit of showing up” alive.
- Sweat23 Sessions: If you’re feeling sluggish, our higher-tempo Sweat23 sessions are great for a quick endorphin boost to clear the “brain fog.”
- Small Group Personal Training: On the days when motivation is low, the shared energy and accountability of a Small Group session can take the “mental load” off. You don’t have to think—you just have to show up and let us guide you.
A Note on Being Kind to Yourself
November is about maintenance, not perfection. If you manage two sessions instead of four, or a gentle walk instead of a run, you are still winning. You are protecting your baseline so that when the lighter days return, you aren’t starting from zero.
If you’re struggling to find your rhythm this month, come and chat with us. Whether it’s a quick catch-up in the gym or joining us for a 23-Day Trial to find a new routine, we’re here to help you navigate the winter months comfortably.