According to Ayurveda there are three important substances - elements of the body-vat (gas), pitt(bile) and cough. A human being does not remain healthy. If these elements are not maintained. A human body catches disease when there is an imbalance of any of those substances.
To maintain balance of 'vat', 'pitt' and 'cough' in a human body it is advised to do massage with oil, (तैलम्) to take honey (मधु) and ghee. (सर्पिः) that according to Ayurveda all these three are very useful for human body, and will remain so in future too.