The scent of "apple" helps relieve migraine headaches. A study by scientists at Yale University in the United States has proved that after smelling apple scent, migraine Hookah Manufacturers symptoms can be significantly reduced or disappeared, and its function is comparable to drug treatment. The main reason is that migraine and the sense of smell will interact with each other, and the fragrance of apple can disperse the anxiety of the patient during headache, make the neck and head muscles relax from tension and contraction, and the systolic blood pressure in blood pressure will decrease, while some Diastolic blood pressure will also be reduced, thereby playing an analgesic effect.