About Lifeflow
Hi John,
this link may answer your question. After meditating for a number of years I bought the Lifeflow pack earlier this year. I had praticed T.M. for years and used binaural beats also. I began with Lifeflow 10 and found it to be amazing. I have actually listened to all the tracks now with and without headphones. To-day, I meditated with Lifeflow 8 and it was wonderfully peaceful. I use the Alpha and theta levels the most because of all the beneficial hormones that are released. The scientific research is also really informative reading. Hope this answers your questions John.Peace and happiness to you

Pollyanna