Bet you didn't know that jaw tension can lead to headaches

Many people affected by head and neck pain see numerous doctors before they find the jaw connection and head to the dentist. — TNS

Head or neck pain, problems with chewing or a clicking sound in the jaw joint may be due to a functional disorder in the chewing system known as craniomandibular dysfunction (CMD).

CMD is not a single disease but a collective term for disorders in the interaction of jaw joints, masticatory muscles and teeth.