Glandular epithelium is specialized for secretion and forms both endocrine and exocrine glands.

腺上皮是一種高度特化的分泌組織，構成內分泌腺與外分泌腺。內分泌腺無導管，直接將激素釋放入血；外分泌腺則經導管排出分泌物至體表或腔道。

Endocrine glands release hormones directly into the bloodstream, producing systemic regulatory effects on distant target organs and tissues.

內分泌腺將荷爾蒙直接釋放至血液循環中，透過血液運輸，對遠端靶器官與組織產生廣泛而系統性的調控作用。

These hormonal signals coordinate key physiological processes including metabolism, growth and development, reproduction, immune function, and stress adaptation (via the HPA axis).

這些荷爾蒙訊號負責協調多項核心生理過程，包括新陳代謝、生長發育、生殖功能、免疫反應，以及壓力適應（特別透過下丘腦-垂體-腎上腺軸，HPA axis）。

Traditional Chinese Medicine (TCM) describes physiological regulation through holistic functional networks known as Zang-Fu organs, rather than isolated anatomical structures.

中醫以「臟腑」作為整體功能網絡，描述人體生理調節的動態運作，而非僅聚焦單一解剖結構。

Zang-Fu theory emphasizes the balance between yin-yang, the mutual promotion and restraint among the five elements, and the dynamic coordination among organs to maintain homeostasis.

臟腑理論強調陰陽平衡、五行生剋制化，以及臟腑之間的相互協調與動態適應，以達成整體內在穩定（homeostasis）。

In TCM, body fluids (Jin-Ye) represent the nourishing, moistening, and lubricating substances that sustain life activities, including thin fluids (Jin) for surface nourishment and thick fluids (Ye) for deep lubrication of joints, brain, and orifices.

中醫的「津液」概念涵蓋滋養、潤澤與滑利全身的物質，其中「津」為清稀部分，主要濡養皮膚肌肉與淺層組織；「液」為稠厚部分，滋潤關節、腦髓、五官與深層臟腑。

Modern physiology views glandular secretions, extracellular fluids, interstitial fluids, and lymph as critical for cellular communication, nutrient transport, waste removal, and maintenance of internal balance—paralleling the nourishing and transporting roles of Jin-Ye.

現代生理學認為腺體分泌物、細胞外液、組織間液與淋巴液等，支撐細胞訊息傳遞、營養輸送、廢物清除與體內穩態，與中醫津液的滋養、運輸與潤澤功能有高度對應。

Acupuncture does not directly replace or supply hormones; instead, it modulates neuroendocrine regulation primarily through neural pathways, including activation of the autonomic nervous system, release of neurotransmitters, and influence on the hypothalamic-pituitary axis.

針灸並非直接取代或補充荷爾蒙，而是主要透過神經途徑影響神經-內分泌調節，包括激活自主神經系統、促進神經遞質與神經肽釋放（如β-內啡肽），並調節下丘腦-垂體軸的功能。

Clinical evidence suggests acupuncture can exert bidirectional (two-way) regulatory effects on endocrine hormones—such as improving estrogen/progesterone balance in reproductive issues, reducing cortisol in stress-related conditions, and supporting thyroid function—thus enhancing the body’s self-regulating capacity.

多項臨床研究顯示，針灸對內分泌荷爾蒙具有雙向良性調節作用，例如改善生殖相關的雌激素/黃體素平衡、降低壓力相關的皮質醇水平、支持甲狀腺功能，從而協助身體恢復自我調節與平衡能力。

Through systemic neuromodulation and holistic regulation of Zang-Fu networks and Jin-Ye circulation, acupuncture supports the body’s inherent resilience and adaptive homeostasis without overriding natural endocrine processes.

針灸透過整體神經調節、臟腑網絡協調與津液流通的促進，增強人體固有的自我平衡與適應能力，而非強行干預內分泌系統，真正實現「扶正祛邪」與「陰平陽秘」的境界。