In the spiritual "Dry Bones," sung by the Delta Rhythm Boys, the neck, shoulder, back, hip, thigh, knee, leg, ankle, heel, and foot bones are all connected. But the jawbone is ignored completely.

Now, a lab study published in the Journal of Dental Research suggests a new line for that song: "Jawbone connected to the waistline!"

The researchers discovered that chronic inflammation triggered by excess body fat causes cells in your body (called osteoclasts) to flourish. They then break down bone tissue, including bone that holds your teeth in place.

A high-fat diet also caused epigenetic changes in the study's lab mice; expression of 27 genes related to the formation of osteoclasts was increased. 

Periodontal (gum) disease affects more than 47% of U.S. adults ages 30 and older. Obesity and excess weight affect around 70% of Americans.

So we can expect the prevalence of gum disease (that also hastens tooth loss) and obesity-related jawbone erosion to increase over time, if a person doesn’t maintain a healthy weight.

Bottom line: Obesity and body-wide inflammation are your own internal climate change challenge. They alter body levels of liquids, chemicals, and oxygen. You end up with an increased risk of everything from gum disease and tooth loss to Type 2 diabetes (strongly associated with gum disease).

To counter that, adopt a plant-based diet; ditch red meat and ultra-processed foods; get physically active; and practice stress management.

That'll put some bite in your fight for good health, and a great smile on your face.