Migraine is a chronic disorder characterized by moderate to severe headaches, and nausea. Although some believe it to be a neurological disorder, there is no evidence to confirm this theory. Migraines are about three times more common in women than in men. The word derives from the Greek ἡμικρανία (hemikrania), "pain on one side of the head", from ἡμι- (hemi-), "half", and κρανίον (kranion), "skull".

A typical migraine headache is unilateral (affecting one half of the head) and pulsating in nature and lasting from two to 72 hours; symptoms include nausea, vomiting, photophobia (increased sensitivity to light) and phonophobia (increased sensitivity to sound); the symptoms are generally aggravated by routine activity. Approximately one-third of people who suffer from migraine headaches perceive an aura—transient visual, sensory, language, or motor disturbances signaling the migraine will soon occur.

Initial treatment is with analgesics for the headache, an antiemetic for the nausea, and the avoidance of triggers. The cause of migraine headache is unknown; the most supported theory is that it is related to hyperexcitability of the cerebral cortex and/or abnormal control of pain neurons in the trigeminal nucleus of the brainstem.

Partap Chauhan is an Indian Ayurvedic doctor and the pioneer of online Ayurvedic medicine. He started the world’s first online Ayurvedic clinic, Ayurvedic.org, in the year 1995. Chauhan is the winner of UN’s World Summit Award for his Teledoc project on rural medicine.

He is the founder of Jiva Ayurveda, an Ayurvedic company which offers online, telephonic and personal consultation to patients across the world.

Chauhan was born in Palla, a village in Faridabad, Haryana (India), on January 15, 1963. He received his school education in Palla, after which he did his B.A.M.S. from Tibia College, University of Delhi. Upon completion of his formal education, he did a five-year apprenticeship with Ayurveda expert, Nanak Chand Sharma, who taught him Ayurvedic Pharmacology, Alchemy and Rasashastra.

Chauhan is a member of the Advisory Committee, Ministry of Health, Government of India, and the prestigious NAMA (National Ayurvedic Medical Association), USA. He serves as the Chairman, International Cell to AIIMGA (All India Indian Medicine Graduate Association, New Delhi). He is a visiting faculty in Ayurveda Gurukula, Japan and Kripalu School of Ayurveda, USA. He is also an advisor to Ayurveda.pl in Poland.