"Mmmmmh...to be more clear...when you exercise, and train, your muscles are damaged; the recovery is what allows them to become stronger. Careful back and forth brings people to the higher limits they chase. ...however... ...Because of that, forcing yourself too quickly, or too harshly, means there is no time to recover."

She inclines her head, frowning. "...in other words, chasing something like that, too desperately, literally ruins a person."