The happy world of an 11-year-old girl began to fall apart one day in the summer of 2015. María Guaita's hair began to fall out all at once, as if it were a crazy nightmare or a horror movie. With no specific treatment available, his doctors decided to give him corticosteroids, drugs that caused him to gain 20 kilos. Suddenly, the girl was hairless and overweight, a metamorphosis very difficult to digest in the often cruel world of teenagers. “It was a very hard blow. Being so little, you ask yourself many things: Why me? Why did it happen to me? I had a very bad time in the first few years,” Guaita, who has just turned 18, now recalls. The young woman, from Cuenca, has been one of the first people to verify the revolutionary effects of a daily pill that reverses her baldness: baricitinib. After seven ruthless years, he has hair again and has regained his normal weight.