Cannabis Use Helps Reduce Migraines
A study published in 2021 showed that patients that used cannabis to help with migraines reported significantly more migraine relief from cannabis compared to non-cannabis products, even after controlling for severity.
"Experimental and clinical studies have discovered links between dysregulation of endocannabinoid signaling and migraine headache. Apparently, the level of anandamide, one of the primary endocannabinoid neurotransmitters in the brain, is significantly reduced in the brain and body of patients with chronic migraine."
A great overview article in Psychology Today here examines of the link between the endocannabinoid system and migraine pain.