Help with information on Pranayama

[Guest guest]

Hello everyone,

 

Recently I became curious as to what the world record is in holding the

breath. Also, is anyone familiar with any experiments on yogis to test their

breathing, brain waves, heart beat, etc. I recall Swami Rama did some

experiments at the Menninger Institute in the early 1970s. If you are aware

of a website/book addressing these issues, please post.

 

Thanks

Harsha