Free EU shipping from €49 · Ships from Lithuania

JAWZR journal

Jaw training, explained

What your chewing muscles do, what hard-gum training can and can't change, and what the studies actually found.

Research · 5 min read

Does hard gum build jaw muscle? What the research says

Jaw muscles adapt to load like any other muscle. Here is what training studies found, and what they didn't.

Anatomy · 4 min read

The muscles you chew with: a simple guide

Masseter, temporalis and the two pterygoids: what each one does, and which ones hard gum trains.

Research · 4 min read

Can chewing gum sharpen your focus?

A short burst of chewing before a task seems to help, at least for a while. Here is what one well-known study found.

Myths · 3 min read

Does chewing gum burn calories?

Yes, a little: about 11 kcal an hour in one well-known study. Here is the honest maths.

Research · 5 min read

What makes a jawline attractive? What studies actually show

Strong jaws are a classic ideal, but the research on facial attractiveness is more mixed than social media suggests.

Health · 4 min read

Benefits of sugar-free gum beyond fresh breath

Sugar-free gum has a few benefits backed by evidence, from teeth to recovery after surgery. Here is what's established.