Most headaches occur occasionally and can be treated effectively by eating, resting or taking over-the-counter painkiller medication. Migraines are the most common neurological condition and affect more women than men. A small percentage of people who have migraines also experience aura symptoms. These visual disturbances may include blind spots, flashing lights, zigzag patterns or tingling, pins..
When a person has kaleidoscope vision, it is because their brain has created a visual illusion of fractured or bright colors. Ocular migraine is what most often causes kaleidoscope vision, but this visual symptom can also indicate a stroke. Learn about the causes, symptoms, treatments, and when to see a doctor here.
Decaffeinated coffee, or decaf, is similar to regular coffee but contains very little caffeine. Research suggests that drinking decaf is not harmful and may share some of the health benefits of regular coffee. Learn more here.
Coffee is probably the most popular source of caffeine. The caffeine content of a cup of coffee can vary considerably depending on the brewing method, the type of bean, and the quantity of coffee grounds that a person uses. Learn how much caffeine different types and brands of coffee contain here.