Bruxism is caused by stress

The alarm goes off and you lazily climb out of bed. Your eyes are still tight and your teeth are so rigid that you feel pain on both sides of your temples.

"It is a sign of teeth grinding all night," said Professor Stephan Doering at the Clinic of Munster in Germany. "If you encounter this condition, you should see a doctor immediately".

Teeth grinding at sleep is unconscious chewing. Only a small number of people who fall into this situation are aware of their behavior. " It is usually only when the partners of these people complain first, they know ," Doering said.

During the day, people with sleep-grinding teeth often chew on horns when stressed, such as when driving, taking exams, or focusing on a certain task.

There are many causes of this condition. In many cases, it is caused by nervous stress or the ability to control poor stress. " It's another version of the snarling of animals, " said Ingrid Peroz at Berlin's Charite Hospital.