Mumbai, Feb 8, 2008 : Actor Saif Ali Khan has undergone a sea change both in his personal life and professional. Flaunting a new, cool and hip avatar the actor seems to be riding a wave of success. And he believes in living life to the full – be it his love life, strumming a guitar in rocking music concerts or food. Saif feels that eating healthy is necessary but one should take a break from the discipline and grind once in a while.