The fall equinox landed on September 22nd this year, and it’s the day daylight and darkness split evenly before the scale tips toward shorter days for months. Most of us feel that shift eventually, usually as low energy or a flatter mood we can’t quite explain — without ever connecting it back to the actual cause: less light.
Why light matters more than we give it credit for
Morning light exposure helps set your circadian rhythm — the internal clock that governs sleep, energy, and mood. As mornings get darker later into fall, that natural cue gets weaker, which is a big part of why energy and mood can dip as the season changes, especially for people who are already spending more time indoors than they did in summer.

Getting ahead of the shift instead of reacting to it
- Get outside within an hour of waking, even for ten minutes. Morning light is doing real work for your circadian rhythm — more than the same amount of light later in the day.
- Move your walk or errands earlier as sunset creeps earlier. Chasing daylight instead of losing it to a 6 p.m. schedule keeps you from feeling like the season snuck up on you.
- Reconsider your bedroom lighting in the evening. Warmer, dimmer light in the hour before bed supports the sleep-wake shift that shorter days can throw off.
- Talk to your doctor if low mood shows up and sticks around. A dip in energy as seasons change is common; if it’s persistent, significant, or affecting daily life, it’s worth a real conversation rather than waiting it out.
- Use the equinox as an actual checkpoint. Balance, literally, is the theme of this day — a good prompt to ask what in your routine needs rebalancing before winter routines fully set in.

A small ritual worth trying
On the equinox itself, take ten minutes to write down one thing from summer you’re grateful for and one thing you’re setting an intention around for fall. It’s simple, it takes almost no time, and it turns an astronomical event into something that actually marks a mental shift for you — rather than a season change you only notice once it’s already dark at 6pm.

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