Adaptogen
Plants that increase the body's non-specific resistance to stress — a category formalised in 1947 but practiced in Ayurveda for 4,000 years.
— Definition
An adaptogen is a plant or compound that increases the body's non-specific resistance to biological, chemical, and physical stressors without disrupting normal physiological functions. The term was coined by Soviet pharmacologist Nikolai Lazarev in 1947.
— In Detail
Criteria for adaptogen classification (Brekhman & Dardymov, 1969): (1) must be innocuous and cause minimal disturbance to physiological functions; (2) must produce non-specific resistance to adverse influences; (3) must normalise body functions regardless of the direction of pathological change. In practice, adaptogens modulate the HPA (hypothalamic-pituitary-adrenal) axis and the SNS (sympathetic nervous system) — the two primary stress response systems. Key mechanisms: reducing cortisol release, modulating HSP70 (heat shock proteins), and activating NO (nitric oxide) signalling. Classical Ayurvedic Rasayana herbs — Ashwagandha, Shatavari, Brahmi, Guduchi, Amalaki — are now scientifically classified as adaptogens. Ashwagandha's withanolides reduce cortisol by 23–30% in double-blind clinical trials (Chandrasekhar et al., 2012). The concept is Ayurvedic, 4,000 years old; the pharmacology took until 1947 to be formulated.
— Why It Matters
Chronic stress is the upstream driver of insulin resistance, thyroid dysfunction, immune suppression, and gut dysbiosis. Adaptogenic herbs address the root cause rather than the downstream symptoms — which is why they appear in nearly every Ayurvedic preventive protocol and are now among the most rapidly growing categories in global nutrition science.
— See in Field Guide
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