Wheeling Jesuit University psychology professor Bryan Raudenbush and athletic training major Juan Pablo Troconis Bello, studied the performance of 18 rugby players over a two-month period late last year. During the first month, players used the peppermint mouth guards. Then the second month they used the traditional unscented, unflavored mouth piece. [...] [Raudenbush] said the use of a peppermint flavored mouth guard led the athletes to believe they had a greater sense of safety, were more energized and motivated, and had “a greater performance during games or practice.”
— Read more at WJU Looks to Peppermint, Its Effect on Athletic Performance at The Intelligencer / Wheeling News-Register.