Why is MAGS mute in the Hunger Games?

Why is MAGS mute in the Hunger Games? She mumbled every time she spoke; Katniss believes it is because of a possible stroke she may have had in the past. While in training for the third Quarter Quell, Katniss watched as Mags displayed her skill of being able to make fishhooks out of nearly anything.

She mumbled every time she spoke; Katniss believes it is because of a possible stroke she may have had in the past. While in training for the third Quarter Quell, Katniss watched as Mags displayed her skill of being able to make fishhooks out of nearly anything.