<human>:  What causes migraines and what remedies work best?
<bot>: Migraines are believed to be caused by a combination of environmental, biological, and genetic factors. Common triggers include stress, lack of sleep, certain foods and drinks, hormonal changes, and strong smells or odors. Remedies that can help reduce the severity and frequency of migraines include rest, stress reduction techniques such as yoga and deep breathing, maintaining a healthy diet, avoiding known triggers, and taking medications specifically designed to treat migraine headaches.