Vaporing medical marijuana is considered one of the healthier means of delivering the needed medication as quickly as smoking cannabis. Vaporizing means you are heating the medicine up to specific temeratures dependant on what you are trying to get.
Ex.. at 200 degrees F various flavaniods are released which is like having concentrated flavor in every breath, then you can turn it up to 325 where the thc begins to be released, then you can turn it up to 375 and finish it off with the highest relase point before combustion, once you are done with it you will have a pile of brown weed. Do not smoke this it is not tasty at all. But you can take it and use it to make some CannaButter for cannabis edibles.