Leah, who was diagnosed with alopecia when she was six, owns her differences and tries to set an example for others.The 13-year-old swimmer almost never loses when she races near her hometown of Sugar Grove, Illinois, a suburb of Chicago. She owns six national age-group records, two of which she set this year. In some longer local events, she laps her opponents. Winning fuels her. “Who doesn’t love winning?” she says.