Rtucharya has been described in almost all the authoritative Ayurveda classics. Ayurveda believes that every change in the external environment and season affects the internal environment of the human body. This leads to imbalance of [[Doshas (दोषाः)|Doshas]] (दोषाः) which control entire mechanism of the union of body, mind & life energy known as Ayu (आयुः। life). This imbalance further leads to development of diseases. Therefore, it is important to understand the role of seasonal variations in diseases development as well as the measures to correct this imbalance and achieve right balance of bodily elements. Under the topic of Rtucharya, Ayurveda acharyas have provided such measures in the form of dietary and lifestyle modifications, to maintain the equilibrium of internal environment of body even in the presence of fluctuating external environment and climatic conditions. These measures have been put forward after keen observation of seasonal characteristics and their effect on the state of [[Doshas (दोषाः)|Doshas]] and [[Dhatus (धातवः)|Dhatus]] (धातवः) in the [[Purusha (पुरुषः)|Purusha]] (पुरुषः। human being). In the clinical settings, observance of such regime has been found extremely useful especially in the cases where individuals who fall sick frequently because of seasonal variations owing to their poor immunity. | Rtucharya has been described in almost all the authoritative Ayurveda classics. Ayurveda believes that every change in the external environment and season affects the internal environment of the human body. This leads to imbalance of [[Doshas (दोषाः)|Doshas]] (दोषाः) which control entire mechanism of the union of body, mind & life energy known as Ayu (आयुः। life). This imbalance further leads to development of diseases. Therefore, it is important to understand the role of seasonal variations in diseases development as well as the measures to correct this imbalance and achieve right balance of bodily elements. Under the topic of Rtucharya, Ayurveda acharyas have provided such measures in the form of dietary and lifestyle modifications, to maintain the equilibrium of internal environment of body even in the presence of fluctuating external environment and climatic conditions. These measures have been put forward after keen observation of seasonal characteristics and their effect on the state of [[Doshas (दोषाः)|Doshas]] and [[Dhatus (धातवः)|Dhatus]] (धातवः) in the [[Purusha (पुरुषः)|Purusha]] (पुरुषः। human being). In the clinical settings, observance of such regime has been found extremely useful especially in the cases where individuals who fall sick frequently because of seasonal variations owing to their poor immunity. |