The average neck is closer to 10-12 centimetres (3.9-4.7 inches) in length.
An increase in the weight gain in the upper part of the body is related to a decrease in the length of the neck, and at the same time it is related with an increase in the circumference of the neck and head, Biomechanicsandhealth.com.
Experts who have studied the association of the size of your neck to an individual's health have found several notable findings.
In a study intended to perform a cephalometric comparison between the patients with and without obstructive sleep apnea (OSA), the authors have found that neck circumference, as a predicator of obesity, is a well-known risk factor for obstructive sleep apnea and cardiovascular diseases while little research exists on neck length associated with these factors.
According to the research, habitual snorers had shorter LNL (lateral neck length) height ratios (P = 0.011), MNL (midline neck length) height ratios in men (P = 0.062), and MNL height ratios in women (P = 0.052).
Those snoring bad enough to annoy others had shorter MNL height ratios in men (P = 0.083) and women (P = 0.035).
Men with objective sleep apnea had longer distances from the mandible to the hyoid bone to the mandible (P = 0.057). Men with metabolic syndrome had significantly shorter LNL height ratios (P = 0.021), and women with diabetes, hyperlipidemia, and metabolic syndrome had shorter MNL height ratios (P < 0.05)
P.V. Mahajan and B.A. Bharucha in their Evaluation of short neck: new neck length percentiles and linear correlations with height and sitting height, said that there are no national or international standards for neck length.
Their research attempted to create standards and percentile charts for Indian children and compute age-independent correlations of neck length with linear measurements such as standing and sitting height. Find out more at Indianpediatrics.net.