When fitness experts try to assess a person's health, they usually perform a series of standard measurements. First they measure a human's height, then compare that with the circumference of their chest, waist, hips and/or thighs. The goal is to help each individual achieve a thickness that suggests the healthiest percentage of body fat — not so low as to be malnourished, nor so high as to put a person at risk of cardiovascular diseases.
Yet there is one other part of the body experts say you should also measure to learn your health, although it often does not receive enough attention: Your neck
