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Column May 9, 2025

Seasonal Lethargy — Why Winter Drains Your Energy

Hyo-seop Kim
Hyo-seop Kim
Chief Director

Lethargy in winter and the rainy season

As daylight hours shorten in winter and the rainy season, serotonin levels drop and melatonin rises, which often brings lethargy, oversleeping, carbohydrate cravings, and weight gain. Even short of full Seasonal Affective Disorder (SAD), many people notice a clear loss of vitality during these months.

How Korean medicine views the seasons and vitality

Korean medicine views winter as the season when yang energy (陽氣) gathers inward. People whose constitutions tend toward yang deficiency feel the cold especially keenly during this time, become reluctant to move, and digest poorly.

  • Yang deficiency (陽虛) constitution: Cold hands and feet, cold lower abdomen, loose stool — formulas in the Bujaijung-tang (Fuzilizhong-tang) and Jinmu-tang (Zhenwu-tang) families
  • Qi deficiency (氣虛) constitution: Fatigue so deep that even speaking feels burdensome, frequent colds — formulas in the Bojungikgi-tang family
  • Moxibustion: Applied at Guanyuan (CV4) and Mingmen (GV4) to replenish yang energy

The importance of light and movement

Alongside Korean medicine treatment, getting 30+ minutes of natural light in the morning matters a great deal. Sunlight is essential for serotonin synthesis. If you spend most of your day indoors, a midday walk is highly recommended.

Wellness foods for winter

  • Jujube tea, ginger tea — warm the spleen-and-stomach and support yang energy
  • Black sesame, walnuts — black-colored foods that nourish the kidney (腎)
  • Cut down on cold drinks and frozen treats; favor warm soups and stews instead

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Hyo-seop Kim

Hyo-seop Kim Chief Director

Hello, I am Director Hyo-seop Kim, Chief Director of Geummaek Korean Medical Clinic. I look beyond visible symptoms to find the root causes. Through over 15 years of clinical experience and research, I provide the most helpful treatment for each individual patient. Please feel free to share your concerns. Together, we will find the answers.

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