Plucking a gray hair causes more gray hair

It is simply not possible Neither is it scientifically proven.  We need to understand that hair turning gray is not a disease.  It is a natural process.  What happens is when people start getting gray hair they become conscious and start plucking them.  Since the hair is already in a process of turning gray people assume hair is turning gray because of being plucked.  A hair is like a tree.  It has its roots inside the scalp. Pulling a hair out is like pulling a tree out of the soil along with its roots.  How can we say that pulling a tree out of the soil will cause more trees to grow?.   (Author by:, "Dr. Khawar Nazir Dermatologist Lahore").