Yang Deficiency Diet: Best Foods and Recipes to Warm Your Body

Last updated: April 2026

This article is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider or licensed Traditional Chinese Medicine practitioner before starting any herbal regimen. Some TCM herbs may interact with medications or be contraindicated for certain conditions.

Quick Answer

• Yang deficiency (阳虚, yáng xū) is one of the nine recognized TCM body constitutions, characterized by persistent cold sensations, fatigue, pale complexion, and a preference for warmth — affecting approximately 7.9% of the Chinese population.
• The core dietary strategy is "warm tonification of the Spleen and Kidney" (温补脾肾) using foods classified as warm or hot in TCM thermal nature — primarily lamb, ginger, cinnamon, walnuts, and leeks.
• Three classic yang-warming recipes — dang gui ginger lamb soup, warming congee with dried ginger, and leek-shrimp stir-fry — can be incorporated into weekly meal planning.
• Yang-deficient individuals must strictly avoid cold and raw foods, including iced beverages, raw salads, cold-natured fruits like watermelon, and excessive green tea (translated from Chinese medical sources).

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Understanding Yang Deficiency in TCM

In TCM's fundamental framework, the body maintains a dynamic balance between yin (cooling, moistening, calming forces) and yang (warming, activating, energizing forces). Yang deficiency occurs when the warming, activating energy of the body falls below the level needed for normal function.

Think of yang as the body's furnace. When the furnace burns low, everything downstream suffers: circulation slows (cold extremities), metabolism declines (weight gain, fatigue), digestion weakens (loose stools, bloating), and reproductive function diminishes (low libido, menstrual irregularities).

The Guangdong Provincial Administration of Traditional Chinese Medicine describes yang deficiency this way: "Yang-deficient people often feel cold even when others are comfortable, especially in the hands, feet, lower back, and knees. They prefer warm food and drinks, dislike cold environments, and may experience frequent clear urination" (translated from Chinese).

How Yang Deficiency Develops

Yang deficiency can develop through multiple pathways:

1. Constitutional predisposition: Some people are born with lower yang reserves, especially if their parents had yang deficiency.
2. Aging: Yang naturally declines with age. TCM texts state that "yang qi begins to decline from age 40" (四十而阴气自半, from the Huangdi Neijing).
3. Chronic cold exposure: Long-term living in cold, damp environments without adequate warmth and nutrition.
4. Excessive consumption of cold foods: Years of drinking iced beverages, eating raw foods, and taking cold-natured medications can gradually deplete yang.
5. Overwork and exhaustion: Pushing the body beyond its recovery capacity, especially with insufficient rest in winter.
6. Chronic illness: Prolonged illness consumes both qi and yang.

A 2024 article from the Nantong Municipal Chinese Medicine Hospital noted that common symptoms cluster in three areas: cold intolerance, fatigue, and digestive weakness — with many patients reporting that symptoms worsen significantly during winter and improve in summer (translated from Chinese).

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The Yang-Warming Food Pyramid

TCM classifies foods by thermal nature on a spectrum from cold to hot. Yang-deficient people should build their diet primarily from warm and hot foods, with moderate amounts of neutral foods, and minimal cold or cool foods.

Thermal Category	Foods	Yang Deficiency Strategy
Hot (热)	Dried ginger, cinnamon bark, Sichuan peppercorn, chili, lamb kidney	Use sparingly as medicine, 2-3 times/week
Warm (温)	Lamb, chicken, shrimp, leeks, walnuts, chestnuts, ginger, scallions, garlic	Daily foundation
Neutral (平)	Rice, pork, eggs, Chinese yam, mushrooms, sweet potato	Supporting base
Cool (凉)	Duck, tofu, pear, spinach, green tea	Minimize
Cold (寒)	Watermelon, bitter melon, mung beans, crab, raw salad, ice	Avoid

The Top 10 Yang-Warming Foods

Based on Chinese medical sources and TCM pharmacology (translated from Chinese):

1. Lamb (羊肉) — Sweet, warm. Enters Spleen, Stomach, Kidney channels. The preeminent warming meat. A 2023 Huaxia Jingwei article on the classic dang gui ginger lamb soup describes it as "warming the middle, dispelling cold, supplementing qi, and nourishing blood" (translated from Chinese). Lamb is recommended 1–2 times per week for yang-deficient individuals.

2. Fresh ginger (生姜) — Pungent, slightly warm. Enters Lung, Spleen, Stomach channels. The everyday warming spice. Can be added to virtually every meal — sliced into soups, grated into stir-fries, steeped as tea. TCM folk wisdom says: "Eat ginger in the morning, better than ginseng soup" (早上吃姜，胜过喝参汤).

3. Dried ginger (干姜) — Pungent, hot. More intense than fresh ginger. Dried ginger warms the interior (especially the Spleen and Stomach), while fresh ginger disperses exterior cold. For yang deficiency, both are useful, but dried ginger goes deeper.

4. Cinnamon bark (肉桂) — Pungent, sweet, hot. Enters Kidney, Spleen, Heart, Liver channels. In TCM, cinnamon bark is considered the herb that "supplements the fire of the Gate of Vitality" (补命门之火, bǔ mìng mén zhī huǒ) — the body's deepest metabolic fire, located in the Kidney. Use in small amounts: 1–3g per serving in soups or congee.

5. Leeks/chives (韭菜) — Pungent, warm. Enters Liver, Stomach, Kidney channels. Called "yang grass" (起阳草) in Chinese folk medicine because of its traditional use for male yang deficiency. Versatile in cooking: stir-fried with eggs, added to dumplings, or mixed into congee.

6. Walnuts (核桃) — Sweet, warm. Enters Kidney, Lung, Large Intestine channels. Nourish Kidney yang, warm the Lung, moisten the intestines. A 2025 article from the Guangdong Provincial TCM Administration listed walnuts among the top 5 spring yang-supplementing foods, noting that "walnut meat is warm in nature and can supplement Kidney and strengthen yang" (translated from Chinese).

7. Shrimp (虾) — Sweet, warm. Enters Liver, Kidney channels. Tonifies Kidney yang, strengthens the lower back and knees. In TCM, shrimp is considered especially beneficial for Kidney yang and is a milder warming protein than lamb.

8. Chestnuts (栗子) — Sweet, warm. Enters Kidney, Spleen, Stomach channels. Called the "fruit of the Kidney" (肾之果) in TCM. Roasted chestnuts are a classic winter street food across northern China — and they serve a medicinal purpose.

9. Longan fruit (桂圆) — Sweet, warm. Enters Heart, Spleen channels. Tonifies Heart blood and Spleen qi, calms the spirit. Dried longan added to congee or tea makes a warming, nourishing daily drink.

10. Black pepper (黑胡椒) — Pungent, hot. Enters Stomach, Large Intestine channels. Warms the middle burner, dispels cold, improves appetite. The Shenzhen Municipal Government health guidelines specifically recommend black pepper lamb soup for winter Spleen-Kidney yang deficiency (translated from Chinese).

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Recipe 1: Classic Dang Gui Ginger Lamb Soup (当归生姜羊肉汤)

This 1,800-year-old prescription from Zhang Zhongjing's Jingui Yaolue is the gold standard for yang-warming medicinal food. It treats the TCM pattern of "blood deficiency with cold" — which heavily overlaps with yang deficiency.

Ingredients

• 500g lamb leg or shoulder, cut into chunks
• 15g dang gui (当归, Angelica sinensis)
• 50g fresh ginger, thickly sliced
• 5g salt
• 15ml rice wine (料酒)
• Optional: 15g astragalus (黄芪) for qi support, 3g dried ginger (干姜) for extra warmth, 2g cinnamon bark (肉桂) for deep Kidney warming

Instructions

1. Cut lamb into 3cm chunks. Place in cold water and bring to a boil. Cook 3 minutes to release impurities. Drain and rinse.
2. Place blanched lamb, dang gui, and ginger in a clay pot or heavy stockpot. Add 2 liters of cold water.
3. Bring to a boil. Add rice wine. Skim any foam.
4. Reduce to low heat. Cover and simmer 90 minutes to 2 hours.
5. Season with salt. Eat the meat and drink the broth while hot.

TCM Modifications (from Chinese clinical sources)

The Jingui Yaolue itself provides modification guidelines:

• If cold is severe: Increase the ginger dosage, or add dried ginger and cinnamon bark
• If there is nausea or vomiting: Add 6g tangerine peel (陈皮) and 10g white atractylodes (白术)
• If qi is also deficient: Add 15g astragalus (黄芪) and 10g codonopsis (党参)
• If pain is present with cold: Add 3g Sichuan peppercorn and 3g fennel seed

Frequency: Once per week during autumn and winter. Can be eaten more frequently during the coldest weeks (Xiao Han to Da Han, roughly January 5–20).

For the full history and variations, see our dang gui ginger lamb soup guide.

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Recipe 2: Kidney-Warming Leek and Shrimp Stir-Fry (韭菜虾仁)

A quick, everyday dish that combines two of the top yang-warming foods. This is not a slow-simmered medicinal soup — it is a practical weeknight dinner that quietly builds yang with every bite.

Ingredients

• 200g fresh shrimp, peeled and deveined
• 300g Chinese leeks/garlic chives (韭菜), washed and cut into 3cm segments
• 3 slices ginger, minced
• 2 cloves garlic, minced
• 1 tablespoon rice wine (料酒)
• 1/2 teaspoon salt
• 1/4 teaspoon white pepper
• 1 tablespoon cooking oil (sesame oil recommended for extra warmth)

Instructions

1. Marinate shrimp with rice wine, a pinch of salt, and white pepper for 10 minutes.
2. Heat oil in a wok over high heat. Add ginger and garlic, stir-fry 20 seconds until fragrant.
3. Add shrimp. Stir-fry 1–2 minutes until pink and just cooked.
4. Add leeks. Stir-fry 1–2 minutes — leeks should be wilted but still bright green.
5. Season with remaining salt. Serve immediately with steamed rice.

TCM Analysis

• Leeks + shrimp: Both warm, both enter the Kidney channel. This pairing creates a concentrated yang-warming effect targeted at the Kidney — the root organ of yang in TCM.
• Ginger + garlic: Amplify the warming effect and protect the Stomach.
• Quick cooking preserves yang: TCM considers that prolonged high-heat cooking can "scatter" the yang energy of foods. Quick wok cooking at high heat is considered optimal for preserving the vital energy of warm ingredients.

Frequency: This can be eaten 2–3 times per week. It is mild enough for regular consumption without risking overheating.

Variation for men with Kidney yang deficiency: Add 10g of Chinese chives seeds (韭菜子, jiǔ cài zǐ) simmered in the cooking oil before adding the shrimp. Chive seeds are traditionally considered a stronger Kidney yang tonic than the leaves. This modification is commonly recommended in Chinese clinical dietary guidance for male reproductive health support (translated from Chinese).

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Recipe 3: Yang-Warming Walnut and Chestnut Congee (核桃栗子粥)

A breakfast congee specifically designed for yang deficiency. It is gentle enough to eat daily during winter.

Ingredients

• 100g rice
• 30g walnuts, roughly chopped
• 50g chestnuts, peeled and halved (use pre-peeled vacuum-packed chestnuts for convenience)
• 5 dried longan fruits (桂圆), shells removed
• 3g dried ginger, sliced thin
• 15g brown sugar (红糖)
• 1.5 liters water

Instructions

1. Wash rice and soak 30 minutes.
2. Bring water to a boil. Add rice, chestnuts, and dried ginger.
3. Reduce heat to low. Cook 40 minutes, stirring occasionally.
4. Add walnuts and longan. Cook another 15 minutes until congee is thick and creamy.
5. Stir in brown sugar before serving.

TCM Analysis

• Walnuts: Warm the Kidney yang, strengthen the lower back. The Kidney stores the body's essence (精, jīng), and walnuts are one of the best food-grade herbs for replenishing it.
• Chestnuts: Tonify the Kidney and Spleen. Strengthen bones and tendons. In TCM, chestnuts are sometimes called "Kidney fruit" because of their strong affinity for the Kidney channel.
• Dried ginger: Warms the Spleen and Stomach, ensuring the congee's nutrients are properly absorbed.
• Brown sugar: Warm, enters Liver and Spleen channels. Warms the middle burner, invigorates blood, expels cold.
• Longan: Warm, nourishes Heart blood and Spleen qi. Adds a natural sweetness and calming quality.

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Recipe 4: Astragalus and Lamb Bone Broth (黄芪羊骨汤)

Bone broths are particularly valued in TCM for yang deficiency because the marrow (髓, suǐ) is considered a deep reservoir of essence and warmth. Lamb bone broth combines the warming nature of lamb with the essence-nourishing properties of bone marrow.

Ingredients

• 500g lamb bones (spine or leg bones), cracked to expose marrow
• 20g astragalus root (黄芪)
• 10g codonopsis root (党参)
• 5 red dates (红枣), pitted
• 15g fresh ginger, sliced
• 2 scallion stalks
• Salt to taste
• 2 liters water

Instructions

1. Blanch lamb bones in boiling water for 5 minutes. Drain and rinse thoroughly.
2. Place bones, astragalus, codonopsis, red dates, ginger, and scallions in a large pot.
3. Add 2 liters of cold water. Bring to a boil over high heat.
4. Reduce to a low simmer. Cook 2–3 hours until the broth is milky and rich.
5. Strain out bones and herb remnants. Season with salt.
6. Drink the broth 1–2 cups at a time, warm.

TCM Analysis

• Lamb bones: Sweet, warm. Enters Kidney channel. Nourish marrow, strengthen bones, supplement essence. The Bencao Gangmu (Compendium of Materia Medica, Li Shizhen, 1578) describes lamb bone marrow as "supplementing Kidney qi, strengthening yang dao (male sexual function), and fortifying bone marrow."
• Astragalus + Codonopsis: Qi tonics that support the Spleen's ability to extract nourishment from the broth. Yang deficiency rarely exists without some degree of qi deficiency — these herbs address both layers simultaneously.

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Recipe 5: Warming Ginger-Cinnamon Black Tea (姜桂红茶)

A daily warming beverage that replaces the green tea many Chinese people drink habitually. For yang-deficient individuals, green tea is problematic — it is cooling in nature and can further deplete yang over time.

Ingredients

• 3g black tea leaves (红茶, hóng chá) — pu-erh or Dian Hong recommended
• 3 slices fresh ginger
• 1/2 teaspoon ground cinnamon or 1 small piece cinnamon bark
• 1 teaspoon honey (optional)
• 200ml boiling water

Instructions

1. Place tea leaves, ginger slices, and cinnamon in a cup.
2. Pour boiling water over. Steep 3–5 minutes.
3. Strain. Add honey if desired (after the tea has cooled slightly below boiling).
4. Drink warm, 1–2 cups per day, preferably in the morning and early afternoon.

TCM Analysis

• Black tea (红茶): Warm in nature (unlike green tea, which is cool). Enters Stomach channel. Warms the middle, aids digestion, and provides a gentle energy boost without the cooling effect of green tea.
• Ginger: Disperses cold, warms the Stomach. The combination of ginger and cinnamon in warm water is one of the simplest and most effective daily yang-warming strategies.
• Cinnamon: Even 1/2 teaspoon provides yang-warming benefit. This small, consistent dose is safer than occasional large doses.

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What Yang-Deficient People Must Avoid

This section is as important as the recipes. The Guangdong Provincial TCM Administration and multiple Chinese medical sources consistently emphasize these restrictions (translated from Chinese):

Cold Foods and Drinks — The Primary Enemy

Never drink iced beverages. Not even in summer. A 2024 article from the Guangdong Provincial TCM Administration states plainly: "Yang-deficient individuals should avoid any cold or raw foods even in summer — do not drink cold beverages or eat food just taken from the refrigerator" (translated from Chinese).

The reasoning: cold foods require the Spleen yang to "warm them up" before digestion can proceed. For someone whose yang is already insufficient, this expenditure of warming energy is like asking a dying campfire to melt a block of ice — it extinguishes what little flame remains.

Specific cold-natured foods to avoid or strictly limit:

• Watermelon, bitter melon, mung beans, chrysanthemum tea
• Raw salads, raw vegetables, raw fruit (cooked fruit is acceptable)
• Tofu in excess (cool nature)
• Pear (raw) — cooked with ginger is acceptable
• Crab, oysters, clams (cold nature in TCM)
• Yogurt straight from the refrigerator

Other Dietary Restrictions

• Green tea: Cool nature. Switch to black tea, pu-erh tea, or ginger tea.
• Excess salt: TCM holds that excess salty flavor damages the Kidney — the root organ of yang.
• Late-night eating: The body's yang naturally retreats at night. Heavy meals after 9 PM tax the Spleen yang when it should be resting.
• Excessive sweet foods: While moderate sweetness tonifies the Spleen, excessive sugar creates dampness, which further obstructs yang circulation.

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Lifestyle Factors That Support Yang

Diet is the foundation, but yang deficiency responds to lifestyle changes as well. Chinese medical sources consistently recommend these practices alongside dietary therapy (translated from Chinese):

1. Exercise — especially in sunlight. Movement generates yang. The Nantong Chinese Medicine Hospital recommends "outdoor aerobic exercises such as jogging, brisk walking, baduanjin (八段锦, Eight Pieces of Brocade), and tai chi" for yang-deficient patients (translated from Chinese). Morning sunlight exposure is particularly beneficial — the yang energy of the sun supports the body's yang.

2. Keep the lower body warm. The Kidney and its yang fire are located in the lower back and lower abdomen in TCM's body map. Keep these areas covered — no cropped tops in cold weather, no sitting on cold surfaces. Warm footbaths (泡脚, pào jiǎo) before bed are a traditional yang-warming practice.

3. Moxibustion on key acupoints. Guanyuan (关元, CV4), Qihai (气海, CV6), Zusanli (足三里, ST36), and Mingmen (命门, GV4) are the classic yang-tonifying points. Moxibustion (burning dried mugwort near the skin) warms these points and is one of the oldest therapeutic methods in TCM. A 2021 systematic review in Journal of Integrative Medicine found that moxibustion showed significant effects on improving cold extremity symptoms in 8 out of 11 reviewed studies.

4. Sleep earlier in winter. TCM recommends that yang-deficient people follow the sun — sleep when it sets, wake when it rises. In practice, aim for bed by 10 PM and wake with natural light.

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Yang Deficiency vs. Qi Deficiency: What's the Difference?

These two constitutions are frequently confused because they share several symptoms — fatigue, pale complexion, weak voice, and susceptibility to colds. Here is how to distinguish them:

Feature	Qi Deficiency	Yang Deficiency
Temperature	No particular cold intolerance	Strong cold intolerance — cold hands, feet, back
Core symptom	Exhaustion, shortness of breath	Cold sensations + exhaustion
Stool	Soft stools, bloating	Loose stools, especially early morning (五更泻)
Tongue	Pale, with teeth marks	Pale, swollen, wet, with teeth marks
Pulse	Weak, thin	Deep, slow, weak
Underlying mechanism	Insufficient functional energy	Insufficient warming energy
Relationship	Can progress to yang deficiency	Includes qi deficiency + cold

The key insight: yang deficiency is qi deficiency plus cold. Every yang-deficient person is also qi-deficient, but not every qi-deficient person is yang-deficient. If you have the fatigue and weakness of qi deficiency but do NOT feel particularly cold, you are likely qi-deficient rather than yang-deficient, and your dietary strategy should focus on qi tonification without the heavy warming emphasis.

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Seasonal Adjustments for Yang-Deficient Individuals

Yang deficiency does not exist in a vacuum — it interacts with the seasons. Here is how to adjust:

Winter (peak vulnerability): Full warming protocol. Lamb soup weekly. Warming congee daily. Ginger-cinnamon tea twice daily. Layer up. Minimize time outdoors in extreme cold. This is your most important season for dietary therapy.

Spring (gradual improvement): As yang rises in nature, your yang improves too. Begin reducing the most heating foods (dried ginger, cinnamon bark). Shift toward milder warm foods (chicken, leeks, scallions). Add some sprouting vegetables but avoid raw preparations.

Summer (best season): Many yang-deficient people feel their best in summer. You can relax restrictions slightly, but NEVER embrace the standard summer cooling diet. Avoid iced drinks. Eat room-temperature foods. Ginger tea remains beneficial. A 2024 article from The Paper (澎湃新闻) describes the san fu tian (三伏天, the three hottest periods of summer) as "the ideal time for yang-deficient constitution adjustment" because external heat supports internal yang (translated from Chinese).

Autumn (transition): Begin rebuilding the warming strategy as temperatures drop. Increase ginger, add warming soups back to the rotation. See our fall yao shan moisturizing recipes — but modify them by adding ginger and avoiding the coldest ingredients (raw pear, chrysanthemum).

For the complete seasonal eating framework, see our seasonal eating guide.

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FAQ

Q: How long does it take to improve yang deficiency through diet? A: Most TCM practitioners describe a gradual process. Noticeable improvement in cold sensitivity and energy typically begins within 4–8 weeks of consistent dietary changes. Deeper improvement — in digestive function, reproductive health, and resilience to cold weather — may take 3–6 months. Constitutional-level change (shifting from yang deficient toward balanced) can take 1–2 years of sustained practice. Consistency matters more than intensity. Daily ginger tea and weekly lamb soup is more effective than occasional mega-doses of warming herbs.

Q: Can yang deficiency cause weight gain? A: Yes. In TCM theory, yang energy drives metabolism and the transformation of food into energy. When yang is deficient, metabolism slows, and food is more likely to be stored as dampness and fat rather than converted to qi. This is why many yang-deficient individuals carry weight around the midsection despite not overeating. The dietary strategy addresses this by warming the Spleen (improving digestive transformation) rather than restricting calories.

Q: Is yang deficiency the same as hypothyroidism? A: They are not identical, but there is significant clinical overlap. Both present with cold intolerance, fatigue, weight gain, and slow metabolism. A 2019 cross-sectional study published in Evidence-Based Complementary and Alternative Medicine found that yang-deficiency constitution scores were significantly higher in subclinical hypothyroidism patients compared to euthyroid controls. If you suspect yang deficiency, it is worth having your thyroid function tested by a Western medical doctor to rule out or address thyroid disease alongside TCM dietary therapy.

Q: Can I take yang-warming herbs as supplements instead of cooking with them? A: You can, but TCM tradition generally favors food-based approaches for constitutional management. Herbal supplements (like cinnamon bark capsules or dang gui tablets) deliver concentrated doses that are harder to calibrate and carry greater risk of side effects — particularly excessive internal heat (上火). Food-based approaches deliver warming properties in moderate doses, buffered by the food matrix, and are safer for long-term daily use. For acute or severe yang deficiency, a TCM practitioner may prescribe concentrated herbal formulas, but these should be professionally supervised.

Q: My partner is yin-deficient and I am yang-deficient. How do we cook for both? A: This is a common household challenge. The solution is a shared neutral base with individual condiments and side dishes. Cook rice, steamed vegetables, and mild soups as shared meals. The yang-deficient person adds extra ginger, scallion, and warming side dishes (like leek-shrimp stir-fry). The yin-deficient person adds cooling side dishes (like snow fungus soup or steamed pear). Avoid making every shared meal strongly warming OR strongly cooling — neutral-base meals accommodate both constitutions.

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Sources

• Guangdong Provincial Administration of Traditional Chinese Medicine. (2023). "Yang Deficiency: Fear of Cold, How to Nourish?" (阳虚怕冷，如何调养). Retrieved from szyyj.gd.gov.cn.
• Guangdong Provincial Administration of Traditional Chinese Medicine. (2022). "Drowsiness, Cold, Hair Loss: How Yang-Deficient People Should Nourish." (困倦、怕冷、掉发……阳虚体质的人如何调养). Retrieved from szyyj.gd.gov.cn.
• Nantong Municipal Chinese Medicine Hospital. (2023). "Drowsiness, Cold, No Energy: Yang-Deficient Constitution Nourishment Guide." (困倦、怕冷、提不起劲……阳虚体质的人如何调养). Retrieved from ntzyy.com.
• Anyang Chinese Medicine Hospital. "Yang Deficiency Constitution: TCM Preventive Health." (阳虚体质-体质辨识). Retrieved from ayzyy.com.
• Tianjin Municipal Health Commission. (2021). "Different Constitutions, Different Medicinal Meals." (不同体质适合不同药膳). Retrieved from wsjk.tj.gov.cn.
• Guangdong Provincial Administration of Traditional Chinese Medicine. (2025). "Spring Yang Nourishment: 5 Yang-Supplementing Foods." (春日养阳，推荐5种补阳食物). Retrieved from szyyj.gd.gov.cn.
• Huaxia Jingwei. (2022). "TCM Culture: Dang Gui Ginger Lamb Soup." (传承弘扬中医药文化之药膳篇：当归生姜羊肉汤). Retrieved from huaxia.com.
• The Paper (澎湃新闻). (2023). "San Fu Tian: Yang Deficiency Constitution Adjustment Is Timely." (三伏天 阳虚体质调理正当时). Retrieved from thepaper.cn.
• Zhang Zhongjing. Jingui Yaolue (Essential Prescriptions from the Golden Cabinet). Eastern Han Dynasty (c. 200 CE).
• Huangdi Neijing (Yellow Emperor's Classic of Internal Medicine). Compiled c. 300 BCE.

— The Yao Shan Guide Team