20/01/2026
# The 24 Solar Terms: Dahan (Major Cold)
**Dahan** (Major Cold) is the last of the twenty-four solar terms, marking the end of winter and the approach of spring. Contrasting with "Xiaohan" (Minor Cold), Dahan signifies the period when the weather is at its coldest extreme. It also heralds the imminent end of the year, prompting people to begin preparations for the New Year.
# # I. Date and Climate Summary
Dahan starts on **January 20, 2026**, and ends on **February 4, 2026**. The weather is severely cold, marking the coldest period of the year, while also embodying the philosophy of "things turning into their opposite when they reach an extreme," where the cold ends and spring begins.
# # II. Traditional Customs
The customs of Dahan often revolve around the theme of "bidding farewell to the old and ushering in the new," and it is also known as **"Dahan Welcoming the New Year."** People start to clean house, making final preparations for the Spring Festival.
# # III. Health Preservation (Yang Sheng) Advice
Health preservation during Dahan should follow the winter principle of **"preserving Yin and storing Yang,"** avoiding the depletion of Yang energy while accumulating energy for the growth of spring.
# # # 1. Daily Life and Warmth
* **Early to Bed, Late to Rise:** Follow the principle of "sleeping early to nourish Yang energy, and rising late to nourish Yin energy," to maintain the balance of Yin and Yang within the body.
* **Cold Protection:** Pay special attention to keeping the head, back, abdomen, and feet warm to prevent the invasion of cold evil. Patients with cardiovascular diseases should be extra cautious about cold protection to ensure good health.
# # # 2. Dietary Regulation
The diet should primarily consist of **warm and nourishing ingredients**, and cold or raw foods should be consumed sparingly.
**Recommended Foods:**
* **Warm Tonics:** Consume foods like glutinous rice (e.g., in Babaofan) and chicken soup to warm and nourish the body against the severe cold.
* **Spices:** Incorporate spices such as ginger, pepper, and chili to improve circulation, stimulate appetite, and help defend against cold.
* **Hydrating Foods:** Include hydrating foods like cucumber, tomatoes, green beans, and luffa to maintain hydration and balance.
* **Beverages:** Drinking red tea can help cleanse the stomach, remove oil, and fight free radicals.
**Key Dietary Principles:**
* **Reduce Salt, Increase Bitter:** It is advisable to reduce salty flavors and increase bitter flavors to nourish the heart energy and strengthen the kidney energy.
* **Avoid Cold/Hard Foods:** Avoid sticky, hard, and cold foods; instead, eat warm food to protect the spleen and stomach.
# # # 3. Exercise and Emotional Well-being
* **Moderate Exercise:** Engage in outdoor activities when the sun is out, or practice indoor exercises like Tai Chi or Yi Jin Jing to enhance physical fitness. **Always do warm up before exercising.** If possible, exercise when the sun is out.
* **Circulation:** Do massage the face to improve circulation.
* **Emotional Well-being:** Maintain an optimistic and positive mindset, avoid excessive fatigue and emotional fluctuations, which is beneficial for the storage of Yang energy. Treat life with humor, lightness, and peace.
* **Brain Function:** To regulate brain functions and mood, sun more, take vitamin C and B, and eat plenty of vegetables and fruits.
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*Note: This document has been edited by the user. Original citations have been removed or modified.*