why do i grind my teeth at night

Teeth grinding at night, known as sleep bruxism, is involuntary clenching or grinding of the teeth that usually occurs during sleep. The exact causes can vary but often include stress, anxiety, and tension. Other factors contributing to night grinding may include sleep disorders like sleep apnea, certain medications, and the use of substances such as tobacco, caffeine, alcohol, and illicit drugs. Additionally, some people grind their teeth when they are concentrating or feeling angry while awake, which can also contribute to the condition. The grinding can cause jaw pain, headaches, worn tooth enamel, and dental damage if left untreated. Treatments include stress management, the use of bite splints, and improving sleep quality.