Going gray is a difficult experience for many people. For some, it's a symbol of a step into old age. For others, it's just a mark of genetics playing a key role in an otherwise normal youth. Either way, many feel they'd rather have their old hair color back. If you're going gray, you may find that you're uncomfortable with your new color and the societal identity that you find yourself taking up with your new look. You may feel better if you get a few highlights, or you may wish to have an all-over dye job. Either way, I recommend you first see a professional hairstylist to figure out exactly what it is you need to do to feel like you're at your best. But remember that once you start coloring your hair, you have to keep up with it or you'll have an inch of gray roots peeking out at you in the mirror before you know it.
Another reason to dye your hair might be because you're tired of your current look or just want to try something different. If your look seems drab to you or you're finding you are not having that impact at work or on the dating scene that you thought you might have, it might be a good time to try a new hair color. Find the hair colors that suit your skin tone and consider what it will look like to others. Does the color work with your current wardrobe? If it fits into your life, coloring your hair might be just what you need.
The third reason to dye your hair is because you have an event coming up that requires some special contribution from you. Perhaps it is the opening night of your art show or you're going to that new club downtown. Depending on your age, you might get one of many things done to your hair so that you can keep your look new and fresh, just like the event you're attending. That's another good time to dye your hair.