Meet the 100-year-old woman who celebrates her century by doing a plank in the gym: She shares 3 simple secrets for a long life

Geraldine “Jerry” Leo, a 100-year-old New Yorker, celebrated her milestone birthday in an extraordinary way by holding a five-minute plank at her local YMCA. Jerry, who has been attending the YMCA since 1991, is admired for her strength and energy. Her instructor and fellow gym-goers are amazed by her abilities.