Overall, I enjoyed the game and its concept, but I suggest adding maximum cap on the Exertion level. After it exceeds a certain number, well into the thousands, the game no longer seems to calculate stat changes within a logical manner. For an instance, if Tyrana has around 5,000 exertion and I send her to sleep without any exercise, she will instantly lose 100% fitness overnight; likewise, if she exercises instead, her fitness will rise by 100% overnight. I think setting the maximum possible Exertion to 1,000 would be a good number.