Neck Pain: Neighboring Pains:

1. Two types contraction:
   1. Muscle bracing: brace jaw muscles to contract neck muscles
   2. Muscle guarding: Pain causes muscles to protect & guard
   3. 3 layers neck muscles (outside, intermediate, intercostal)
2. Added to muscle contraction:
   1. head movement
   2. muscle tension
   3. work posture
   4. muscle brace
   5. trigger points
   6. weight head or shoulders
   7. posture
   8. shrugging
3. Cervical muscle bracing stimulates jaw clenching, jaw clenching contracts neck muscles

Head Pain: Neighboring Pains:

1. Added muscle contraction due headache
   1. Muscle bracing
   2. Muscle guarding
2. Primary Types HA:
   1. Tension Headaches
   2. Migraines
3. Migraine Pain: sources inflammation
   1. Chewing muscles & joints
   2. Neck muscles & joints
   3. Special organs: ears, nose, sinus, mouth
   4. Virus & Bacteria
   5. Allergies, chemical sensitivities, hypermobility
4. Tension Headache
   1. Stress sets off biochemical pathway: i) cortisol, ii) adrenalin, iii) tension
   2. Stress causes static muscle contraction of our favorite muscle
   3. Pathway: Stress-sympathetic system-temple contraction-lactic acid buildup-inflammation-pain
   4. Tension headache pain is mostly felt in temples
   5. Temple muscle is chewing muscle
   6. 48% women & 38% men have tension HA