When she found that cases of elevated lead levels had doubled, she warned the community.
Pereira invented a surgical glue which may eventually replace the need for sutures and the resulting chance of tearing and infection.
When asked how she got started with martial arts, she explained "I used to do ballet ... but I didn't like it."
Her parents have tried to sell her into marriage since she was 10. She's fighting against that with song.
Born without legs and most of her fingers in the wake of the Chernobyl disaster, Tatsiana Khvitsko has since taken up running and bodybuilding.