Kathmandu. According to the 'World Health Organization', millions of people worldwide experience premature hair graying every year. According to the 'National Institute of Health', more than 25% of people worldwide experience premature hair graying. This is called 'Premature Greying'. Hair starts to look white when the amount of melanin decreases. This usually happens after the age of 40. But if it happens earlier, it is called 'Premature Greying'. Many reasons like genetics, bad lifestyle, and lack of nutrition are responsible for this. Therefore, today we will talk about the problem of premature hair graying. We will also learn, what causes...