How would you strength the side and front part of the neck. That's what I'm trying to figure out. The exercise shown strengthens the back part of the neck connected to the trapezius.
I suppose clenching on the mouth piece automatically strengthen the jaw muscles as well.
Marcus Aurelius: Tell me again, Maximus, why are we here?
Maximus: For the glory of the Empire, sire.
Baked, not fried... the healthy choice.