How often should most people shampoo?

How often should most people shampoo?

Every other day is plenty for most people to promote a healthy scalp. But if you're an athlete, you sweat a lot, or your scalp is oily, you may need to lather up more often. If your scalp’s dry, you can probably wash your hair every few days. If you're African-American and have natural hair, you should wash it even less -- once a week, tops.