Aerial hammock and yoga exercise are great for natural strength training.
POSTER OF HATHA YOGA BASIC ASANAS
Bikrams Hot Hatha Yoga postures
Kundalini Yoga Foundation for Infinity
There is a saying in Tibetan, "Tragedy should be utilized as a source of strength. No matter what sort of difficulties, how painful the experience is, if we lose our hope, that's our real disaster." ~ HH Dalai Lama