― Mostly gray hair is caused by factors of age, was the cause of gray hair is not only the age factor alone, the following pengerahuan PS2 will share about the causes of gray hair. Speaking of gray hair, lots of facts and myths that mixed-stir in the community. Some say that aging causes rapid hair graying, others say that more gray hair is determined by heredity. Some villagers believe that pulling gray hair will actually make it grow faster, some others do not believe it. Which is correct? [...].