I ve been smoking marijuana for a about one and a half years now. I haven t really been feeling any breathing related pains but that is not why I m posting this. I m about to have a hair transplant (I lost some of the hair on my head due to an accident) and the doctor taking my case says I have to undergo a haemogram? I understand this is a haemoglobin count. So my question is,does my smoking of marijuana affect my haemoglobin count? And what is the average haemoglobin count of a healthy non smoker? PS I dont smoke cigarettes,or shisha or generally tobacco products just marijuana.