On or around September 7, the eleventh solar term of the Chinese calendar arrives: White Dew (Bailu). It is the first term that carries a visible signal — morning condensation on grass, cooler nights, air that suddenly feels dry. In the SEASONS framework, it marks the hinge between late summer and true autumn, and it is the single best moment of the year to reset your habits before winter.
This guide is the practical version: what changes in your body, and what to change in your routine, without exotic ingredients or complicated routines.
Why White Dew Matters
Classical Chinese medicine maps the year onto organ systems and climatic forces. Late summer belongs to dampness and the digestive system; autumn belongs to dryness and the lungs. White Dew is the handover moment. The problems people blame on "the weather changing" — dry throat, rough skin, a cough that lingers, brittle mood in the morning — are mostly the lung system meeting the first dry air of the year, unprepared.
Western framing lands in the same place: season transitions stress the respiratory tract, sleep shifts with light and temperature, and hydration habits calibrated to summer heat suddenly underserve you.
The Five-Point White Dew Reset
1. Protect the neck and upper back. The classic saying for this term is that "cold starts from below and wind enters from behind." Practically: stop sleeping with fans blowing directly on you, and take a light scarf for mornings. This is the cheapest intervention in the entire seasonal calendar.
2. Shift hydration from cold to warm. Iced drinks were a summer tool. From White Dew onward, room-temperature or warm water does a better job against the dryness that causes scratchy throats. Pears, lily bulb, white fungus, and honey are the traditional moistening foods — all mild, all available in ordinary supermarkets.
3. Move bedtime 15–30 minutes earlier. Autumn's rhythm contracts outward activity and consolidates rest. The two weeks around White Dew are when poor sleep converts most efficiently into the colds and dry coughs of October. Earlier sleep is the defense.
4. Change your exercise window. Dawn is now the coldest, dampest part of the day. If you exercise early, layer up and warm up longer; alternatively shift to late afternoon when yang is naturally stronger. Sweating heavily in cold morning air is the classic way to catch the "wind-cold" pattern.
5. Feed the transition. Consciously reduce the summer diet (raw, cold, heavy-sugar) and increase gently cooked food: congee, soups, stewed pear. Radish, lotus root, yam, and almonds all support the lung-and-large-intestine axis that autumn emphasizes.
The Two-Week Rule
You do not need to do everything. You need to start within two weeks of the term. Each solar term is a roughly 15-day window; habits adopted inside the window settle far more easily than habits forced against the season a month later. One scarf, one earlier bedtime, one warm breakfast — that is a complete White Dew.
How SEASONS Handles This
Every year contains 24 of these windows. Remembering them — let alone translating them into a daily plan that accounts for your time zone, chronotype, and constitution — is exactly the kind of bookkeeping humans skip and software does well. The SEASONS app maps all 24 solar terms to daily guidance: what to eat, when to sleep, which meridians are active in each two-hour block, and what to ease off. If seasonal living sounds right but the logistics sound tedious, that is the gap we built it to close.
Autumn is the season of consolidation. Start consolidating on the term itself.
SEASONS is a TCM-based seasonal wellness app for English-speaking users — daily guidance aligned to the 24 solar terms, your chronotype, and your local timezone. Available on Google Play and the App Store.
