what is hatha yoga ?

Hatha yoga is an ancient from of yoga that was first described in 15th century india .

It may have existed well before this however.

Hatha yoga is sometimes called ''dual" yoga because it includes a duality between two opposites: the sun (in hinda,"ha) and the moon ("tha").

It uses physical positions to help control breathing , which in turn helps to calm the mind & prepare a person  for meditation .

Many modern forms of yoga use hatha yoga positions as their foundation .

Besides , meditation and breathing exercises are known to reduce anxiety and stress,which in turn can improve scores on some cognitive tests.