Over the course of years of treating human body, I’ve found close to 100% of people over the age of 35 have very stiff neck. Stiff and rigid neck often accompany migraines, shoulder pain, frontal sinus headaches, and eye pain. It’s hard to believe, but stiff neck is also directly associated with the lower back and sacrum pain. There’s an easy way to deal with these issues: self-massage the suboccipital muscles, behind your head.