There is a near one-to-one mapping between the location of the headaches and the muscles that cause the headaches. When the tension in these muscles is released, the relief of the headache is immediate. The clinical data I have gathered over the years indicate that the tension is in 6 muscles; sternocleidomastoid, temporalis, scalene, trapezius, levator scapula, and masseter. This book is written for self-reliant contrarians like myself who will not accept the common misbelief that headaches can only be managed with medications, and take matters into, literally, their own hands to cure them....