my, you are new, aren't you?
yes you can vape, either with a unit with an oven, that actually cooks the weed at just under combustion temperatures, so you get all the volatiles and none of the plant matter, or you have to make concentrates out of your weed and mix that into vaping fluid (more than one kind available) and you vape the fluid in a different unit.
healthier or not? the jury is still out, you aren't getting the burning cellulose and other plant material, which is a positive, but is the fluid good for you? some say its ok, some say it isn't....
about the only way to consume weed without either risk is to make edibles, but they have their own issues. they take quite a while to come on, if you didn't make them you have no idea how strong its going to hit you, and if they're a little too strong you can be quite a goof till it wears off