The study involved 71 people with episodic migraine who had two to eight attacks per month and had not taken any preventive medication for migraine for at least two months. (sciencedaily.com)
A «complex» of brain metabolites distinguish altered chemistry in the cingulate cortex of episodic migraine patients Becerra L, Veggeberg R, Prescot A, Jensen JE, Renshaw P, Scrivani S, Spierings EL, Burstein R, Borsook D. NeuroImage Clinical. (mcleanhospital.org)
In episodic migraine, attacks occur less often. (sciencedaily.com)