Ancient Maharishi Patanjali's Yoga is called Raja Yoga or Ashtanga Yoga. It has the eight limbs namely (i) yama, (ii) niyama, (iii) asana, (iv) pranayama, (v) pratyahara, (vi) dharana, (vii) dhyana and (viii) samadhi; that includes all types of existing yoga. These eight organs also have their own sub-parts. The seventh organ of yoga, "Dhyana" is beneficial in many chronic diseases such as: cancer, memory loss etc. If your memory is weak, it can be...