What dangerous diseases does frequent yawning indicate?

Doctors have estimated that a healthy person on average yawns from 7 to 23 a day. But you should be careful when increasing their number.

Doctors have noticed that an increase in the number of yawns is observed in people suffering from obesity, because there are malfunctions in the work of their thyroid gland.

Changes in the hormonal background also provoke fatigue, as well as drowsiness. Another interesting observation is an increase in the number of yawns in people who have survived a stroke. But excessive yawning can also indicate an impending heart attack.

The third reason for abnormal yawning is stimulation of the vagus nerve. This happens due to the slowing down of the heart rate and lowering of blood pressure.