The front one-third of the tongue relates to the lungs, heart,
chest, and neck. Froth in the middle of this area is often
a sign of low lung energy with damp and cold lungs and may
translate as a cold, bronchitis, asthma, or respiratory allergy.
If there is a small depression in the heart area, it often
relates to intense grief, sadness, or depression.
The central third of the tongue relates to the liver, spleen,
stomach, and pancreas. Small ulcers on the tongue in the stomach
area may reflect gastritis or peptic ulcer.
The rear one-third area of the tongue relates to the lower
abdominal organs, such as the small intestine and colon. If
this posterior part of the tongue is covered with coating,
that is ama or toxins in the colon, indicating low colon energy.