It's not worth it. I used a jule for like 6 months. Definitely became dependent on it. It's helped with anxiety, focus, social ability etc... but once you stop your body and lungs feel better. It used to make me feel nauseous and I'd chain hit to make the anxiety go away. I think it may have damaged my lungs. I do have areas of my lungs hardening but it might not all be from that.