I sometimes find myself clenching my teeth. why do i do this?

Stress: Clenching is usually from stress. Some dentist may recommend a medical mouth splint to help with this. Of course try your best to reduce your stress level. However this can be challenging.

Stress: This is an unconscious response to stress. In stressful situations, people will clench their teeth. The signals for this comes from your brain. Such clenching is usually harmless, unless you continue it over a long time. In such situations, you may place undue stress on your jaw joints, leading to TMJ syndrome. If you start getting symptoms, see you dentist who will recommend treatment.