�...Yoga is the only exercise which actually exercises your internal organs. Whether it�s your thyroid, pituitary,l liver, pancreas, kidneys, intestines...all of them actually with different asanas ac... View More�...Yoga is the only exercise which actually exercises your internal organs. Whether it�s your thyroid, pituitary,l liver, pancreas, kidneys, intestines...all of them actually with different asanas actually can be exercised...� -cardiologist Dr. Naresh Trehan, Chairman, MD Medanta