Number of goats

 I remember a friend told me that if the night could not sleep for a few goats, and stressed the need to repeatedly until it fell asleep a few.
Think of a joke. In the United States has a patient suffering from insomnia, doctor everywhere but in the end to no avail. the next day came to a clinic, the doctor said that he cures insomnia, the patient happy listening. The doctor told him that the number of goats in bed at night to ensure you can sleep, the patient in mind to go home.
next day the doctor saw the patient has to ask his illness. patients said the doctor taught me my way as you do. the doctor asked him with concern, .