09/01/2026
Your circadian rhythm notices the seasons changing. In TCM late summer runs all the way through September 22nd, but our body still needs daily circadian connection in order to smoothly transition into the upcoming season.
One of the simplest ways to support your circadian rhythm is also one of the most powerful: see natural light at both ends of the day.
Morning light helps anchor your circadian clock, supports healthy cortisol timing, and signals to your brain and body that it’s time to be awake, alert, and metabolically active.
Evening light helps your body recognize that the day is winding down, supporting the natural transition toward melatonin production and sleep.
This daily light-dark cycle influences far more than sleep. Your circadian system helps coordinate metabolism, appetite, glucose regulation, hormones, body temperature, and cellular repair.
And as the seasons change, our cues need to change with them.
Try making sunrise and sunset part of your daily rhythm:
— Get outside within the first hour of waking
— Let your eyes receive natural daylight (without staring directly at the sun)
— Spend a few minutes outdoors around sunset
— Dim bright artificial light as evening progresses
— Let your bedtime gradually follow the earlier darkness
You don’t need a perfect routine. You need consistent signals.
Your biology is built to read the light around you. As summer gives way to fall, give your body the opportunity to read the season, too.
Video by kelley diaz
