Forum:Sim Gaining Skill Points Very Fast

Hello, one of my Sims is gaining Skill Points really fast. She maxed out her Atheletic Skill after working out for about 1-2 hours gametime from a skill of zero. Does anybody know why this is? I checked her Aspiration Rewards and there's nothing there that would do something like that. I have all the EPs and SPs and I didn't install any mods. I tried another Sim in the family and his skills gained as normal.