Thank you for your question. While there are many things that a person can do to stop whitening or greying of hair (such as dyes or coloring), it is most important to identify why your hair is changing colors at such a young age. This may be indicative of other medical problems that need to be addressed and should be discussed with your doctor
. He or she may need to do some testing to determine if there is anything abnormal. Alternatively, he or she may be able to discuss your family history and determine if early greying of hair is normal for your family. Either way, it is important to discuss this with your doctor. For most people, changes in hair color, becoming more white or more gray, will happen during times of stress on the body. This stress can come from poor nutrition, lack of sleep, or other stressors in your environment. Many people will notice that the hair will seem to become more gray during periods of stress. In that regard, a healthy lifestyle, adequate sleep, and good nutrition are excellent tips to reduce the stress that can speed the change in color that many people describe. Please speak with your doctor about this question.