Millions of people around the world are affected by alopecia areata, an autoimmune disorder that causes hair loss and was thrown into the spotlight after actor Will Smith slapped comedian Chris Rock at the Oscars.
The slap stunned millions, drew widespread condemnation and earned Smith a 10-year ban from the ceremony after he apologized. It came after Rock threw a pointed joke that some felt was insensitive at Jada Pinkett Smith about her hair loss.
