why does jasmine have no hair

Jasmine Mitchell, a contestant on this season of The Great British Bake Off, has alopecia, a condition that causes hair loss. She has explained that her hair began thinning and then fell out starting around age 12, and that the exact cause of alopecia is not well understood; it is often thought to be an autoimmune process, though not every detail is fully established. Over time she has become more comfortable presenting without wigs and has spoken publicly about embracing hair loss as part of her identity. This context helps explain why she appears with little or no hair on the show and in recent interviews.