The wisdom of tradition.
Proven by science.

Constitution is not a late addition to Ayurveda. It sits in the diagnostic core of both founding texts, and both describe it the same way. Charaka's Vimanasthana traces a person's habitus to the germinal material, to the mother's diet and conduct during pregnancy, and to the mix of elements present at the time, then sets out the possibilities: predominantly Vata, predominantly Pitta, predominantly Kapha, the combined types, and those in humoral equipoise. Sushruta is the one who puts a number on it, in a single line: the temperaments are of seven kinds, and each is fixed by whichever dosha predominates at conception. The purpose is strictly clinical. Charaka introduces the examination so the physician can pitch the strength of a remedy to the patient, because a strong medicine given to a weak one acts, in his words, as an immediate destroyer of life. Worth knowing too that the classical descriptions are far blunter than the modern wellness version: Sushruta's Vata type is wakeful and quick-walking, but also thievish, vain and dishonest, with the traits of a jackal or a crow.

What the science saysSmall human studies have looked for exactly what the texts predict, and found something: distinct gene-expression and metabolomic profiles between people classified as Vata, Pitta or Kapha. The samples are small and replication is thin, so this is a real signal rather than a settled finding.