What should I do if I always talk in my sleep?

It may be a brain nerve problem. Frequent talking in sleep may be related to brain fatigue, excessive excitement before going to bed, some potential psychological stress and traumatic experience. The physiological mechanism of talking in a dream is that the brain function is generally inhibited during sleep, and only in the language center is there still an impulse of excitement, which leads to talking in a dream during sleep. I suggest you see a doctor and take some appropriate medicine for treatment. Pay attention to rest at ordinary times, don't get angry, and do something to make yourself calm, so that you will return to normal.