Scientists from Cambridge University have found the first token identifying clinical depression. The results were published in the Proceedings of the National Academy of Sciences.
The substance has been known to science hubbub of cortisol. This hormone is responsible for the inflammatory and stress response of the body. Determining its concentration in saliva, scientists say, can be suspected early stage clinical depression.
In the study, researchers examined the saliva 1860 people. Monitoring of groups of volunteers took place over three years. It turned out that constant elevated levels of cortisol - a sure sign of problems in mental health.
Scientists believe that the level of cortisol in the saliva in the future may be one of the ways to diagnose depressive disorders. Maybe this will help to improve the success in the treatment of this disease.