I had another absolutely incredible improvement today in my cardio from that O2 Frequency CD. I’ve been training for 4 months, just trying to go from a power walker to a runner. I’ve been doing cardio intervals of 1 minute run, 1 minute walk around a beautiful golf course near my home. The route is 2.5 km, so a little over a mile. I’ve only ever just done intervals and after 30 minutes I’m pooched and out of breath. Today I ran the whole route with only 4, 30 second rest stops. That is a quantum leap in cardio girlfriend!!!! Your gift is giving me exponentially expanding benefits!