Marilyn Monroe Working Out at the Beverly Carlton Hotel (1952)

Marilyn loved to work out. She was ahead of her time to make her own working out program. Here, LIFE photographer Philippe Halsman captured a few candid shots of her daily workout routine at the Beverly Carlton Hotel in January, 1952.

The photographer recalled “On the ground, there were two dumbbells I asked her if she was using it, she replied ‘Yes’ she answered me, ‘I’m fighting against gravity.’”