Tale of King Yayati

King Yayati was one of the learned king in Chandra Vansha. He married the daughter of Sukracharya - Devyani. His father in law Shukracharya warned him that if he involved in relations with other woman then he would turned old immediately. Later Devyani gave birth to 2 sons –Yadu and Turvasu.There was a maid called Sharmishtha whos was insulted by Devyani at one time. To take revenge from Devyani, Sharmishtha married secretly with King Yayati. She gave birth to 3 sons –Druhyu,Anu,Puru. When Devyani came to know about the relationship of Yayati and Sharmishtha and their three sons she felt shocked and she went away to her father's house. Shukracharya was unhappy with the king Yayati, and cursed that he would lose his youth and become an old man immediately. As soon as Shukracharya uttered his curse Yayati became an old man. King Yayati asked for forgiveness.The only exception to that curse was if Yayati wanted he could give his old age to someone and take their youth from them. Yayati, now an old man, quickly returned to his kingdom and called for his eldest son. He asked him to exchange his youth for some time. But he turned down this request. Only his youngest son, Puru, however said it was his duty to fulfill his father's desires and ensure his father's comforts o he agreed to take Yayati's old age. For a thousand years Yayati lived a pleasurable life with his wives and after his desires were fully satisfied he returned Puru's youth to him. In return for Puru's sacrifice he crowned Puru as the next king of the lunar dynasty and declared that his lineage would continue through Puru. It was in this dynasty that the Kauravas and the Pandavas were born. Yadu started his own dynasty. Krishna, the eighth incarnation of Vishnu, who was the advisor to the Pandavas, was a descendent of Yadu. This Story throws hints about anti aging process