Shoulder Pain from Smartphone Overuse? Relieve It with This Acupoint

How does modern medicine explain shoulder pain and rounded shoulders? Maintaining prolonged postures while using smartphones and computers excessively strains specific muscles while weakening others, causing significant muscular imbalance. The trapezius muscle is a broad muscle extending from the back of the neck across the shoulders and upper back. Sustained postures with a lowered head and hunched shoulders cause the upper trapezius muscle to contract and tense excessively. This impairs local blood circulation and reduces oxygen delivery to the muscle, creating trigger points associated with myofascial pain syndrome and causing severe shoulder tightness and headache. Additionally, rounded shoulders occur when the anterior chest muscles, such as the pectoralis major and pectoralis minor muscle, shorten while the posterior upper back muscles, including the rhomboid muscle and lower trapezius, lengthen and weaken, causing the shoulders to roll forward. This posture flattens the natural curvature of the spine, increasing physical strain on the neck and lumbar region and affecting respiratory muscles to produce shallow breathing. Jianjing (GB21) is anatomically positioned at the summit of the upper trapezius muscle. Stimulating this point relaxes the tensed trapezius muscle and dilates adjacent blood vessels to improve blood circulation. Neurologically, stimulation here transmits signals to the central nervous system that promote the release of pain-modulating substances such as endorphins and stimulate the parasympathetic nervous system, inducing systemic relaxation. It also helps reduce the risk of nerve entrapment caused by chronic muscle contraction. Sustained stimulation enhances muscle proprioception, supporting the awareness and maintenance of proper posture. The concept of qi and blood circulation described in Donguibogam aligns closely with modern medical mechanisms of enhanced blood flow, neurological modulation, and muscular relaxation. Consistent care helps keep the neck and shoulders comfortable.