I saw my respitory physician today and he was surprised by how much less phlegm and crap I have in the bottom of my lungs after 6 months. I also haven't taking any anti-biotics or had any major infections in 6 months which is unexpected. He said a change in diet could cause improvements but there is no way of knowing. I've only been primal for a month and a half and I don't know whether my improved diet deserves the praise or not. I'll get another check up at the end of October with X-rays this time so I'll be interested to see how much more imrpoved I am by then.