Apana Mudra

Apana mudra is a combination of the Aakash mudra - Prithvi mudra.

It is very effective in eliminating the waste materials and toxins deposited in the intestine.

As a result of this it purifies the body and mind which increase sativa qualities in the practitioner of  this Mudra.

Gyana mudra

 The word Gyan means wisdom in Sanskrit. Thus, practicing the Gyan Mudra is believed to help instill wisdom and spiritual enlightenment. This is why the Gyan Mudra is widely used in many yogic meditation poses such as Pranayama. The Gyan Mudra is also known as the Chin Mudra.

Apana vayu mudra

  

Apana Vayu mudra is a combination of  Apana Mudra and  Vayu Mudra. 

Apana Vayu Mudra is also known as mritha sanjeevani Mudra. 

Sanjeevani (or Sanjivani) is a Sanskrit word (Old-Indian language) and is translated mostly directly as the „immortal“, „the infinite life“ or as „life giving“. 

A mudra, which can snatch a person away from the clutches of death! Indeed, this mudra has tremendously benefited a person who has suffered from chest-pain (angina pectoris) or a heart attack.

It increases, the earth element (and therefore the Kapha humor) while decreasing the air and fire elements within the body.