Do you remember how old you were when you got your first migraine? For many, these debilitating headaches begin during adolescence or their early twenties, though migraines can really start at any age. It is estimated that about 5 percent of school-aged children struggle with migraines, and in some cases, children as young as 4 years old may start experiencing symptoms. Before adolescence, girls and boys get migraines at a similar rate, but by the time puberty arrives, the incidence...