Actress Jada Pinkett Smith

According to the National Institutes of Health, it affects all racial and ethnic groups, men and women equally. There is no cure, but sometimes doctors recommend treating it with steroids, medications that suppress the immune system, or drugs that work to stimulate hair growth. The National Alopecia Areata Association says the condition affects about 2% of the population, or as many as almost 7 million Americans. It can occur at any age, but most often during the teen years or young adulthood. Jada Pinkett Smith is 50. Other public figures with the condition include Ayanna Pressley, a Democratic congresswoman from Massachusetts, British actor and comedian Matt Lucas and bluegrass musician Molly Tuttle.