What are headaches? Headaches (HA) are one of the most common health complaints seen in clinical practice. Studies suggest over 70% of adults experience at least one significant headache each year (1). While many happen only on occasion and are self-limiting, some become recurrent and disruptive, affecting work, sleep, exercise, and daily life. Not all headaches are the same and each has different causes, even though symptoms can overlap. The most common types we see in prac