So we've got muscular origins of the ache in headache. We have meningocele origins of the Aiken headache. We have a neural origins of the Aiken headache and we have inflammation based origins of the ache in headache and that pertains to all the different types of headaches that we're going to talk about and it's important to keep in mind that there are these Foreign sources of the ache and headache and that sometimes they exist alone and sometimes they exist in combination. However, this is an important however all pain or I should say all experience of pain as a perception is going to be neural in origin when we experience pain, whether or not to pin (expletive) or a cut stub, our toe we trip and fall or a headache. It is natural in origin. It is the nervous system and nerve cells that are going to carry. That signal, that we perceive as pain. So, as we talk about the different sources of pain and different types of headache, we will also talk about, of course, I think what most people are interested in today's discussion, the different treatments for the different types of headache and why each of those different treatments work. But by understanding a little bit about how pain arises in the nervous system and certainly by understanding the different types of headaches? You know, what is a tension headache, I gave you some impression that it's running around your head like a headband in many cases versus cluster headache, which It's deep below the eye often it feels as if it's emerging from deep in the brain versus migraine, which we'll get into in a moment by understanding the different types of headaches. You should be able to quickly. Pinpoint, what type of headache? You have? What types of tissues are likely involved and therefore, what types of treatments are going to most quickly and most completely relieved that type of headache.