title: Support for human estrus: documentation in Ayurveda.
abstract: BACKGROUND
  Human estrus is a new topic to discussion. Articles related to this are few.
  
  
  OBJECTIVE
  Authors present here the first known report on human estrus, which was discussed in the Ayurveda classic text, Susruta Samhita, dated back to the 1st century BC.
  
  
  METHODS
  Supporting this, evidence from modern literature is presented here.
  
  
  RESULTS
  Estrus discussed as a fresh topic.
  
  
  CONCLUSIONS
  Authors concluded that all modern research results, though limited, are in support of the oldest writing about human estrus.
authors.affiliation: Department of Physiology, Sree Narayana Institute of Medical Sciences, Eranakulam, India. kpskandhan@gmail.com
authors.forename: Kalanghot Padmanabhan
authors.initials: KP
authors.lastname: Skandhan
authors.forename: Achuthan
authors.initials: A
authors.lastname: Rajahariprasad
authors.forename: Balakrishnan
authors.initials: B
authors.lastname: Sumangala
mesh_terms: D005260:Female; D005298:Fertility; D049690:History, Ancient; D006801:Humans; D007194:India; D008515:Medicine, Ayurvedic / Q000266:history*; D008597:Menstrual Cycle; D012725:Sexual Behavior / Q000266:history