Yoga can be practiced by people of all ages and fitness levels, and this program -- led by yogi Marlon Braccia -- is geared toward senior citizens. With clear instructions and helpful tips, Braccia demonstrates poses designed to improve flexibility, overall strength, bone loss and eyesight issues. The five 25-minute sessions include "Ujjayi Pranayama," "Beginner Practice I," "Hamstring Opener," "Strengthen I" and "Eye Strengthener."