Headaches and migraines are two different types of headaches. Headaches are a common occurrence that most people experience at some point in their lives. They are typically caused by stress, dehydration, or lack of sleep, and can range from mild to severe. Migraines, on the other hand, are a more serious condition that affects a much smaller portion of the population. Migraines are usually more intense than regular headaches and can last for several hours or days. Symptoms often include nausea, vomiting, and sensitivity to light and sound. Treatment for migraine headaches typically involves a combination of medications and lifestyle changes.