India, Feb. 11 -- Jennifer Aniston celebrated her 57th birthday on February 11, and while the numbers on the calendar climb, the Hollywood actor seems to be moving in the opposite direction. Known for her disciplined approach to health, Jennifer is redefining what it means to be fit in your late 50s by trading 'no pain, no gain' for a philosophy centered on sustainability and listening to her body. Also read | Jennifer Aniston's fitness trainer shows exactly how the actor stays in shape: See her top 5 workout moves

Over the past few years, the Friends star has shifted her focus away from gruelling, high-intensity routines toward functional, multi-joint movements. Jennifer maintains her status as one of Hollywood's fittest stars through a...