Patient-Friendly Explanation

Your autonomic nervous system controls the body functions you do not think about, such as heart rate, blood pressure, digestion and body temperature. One branch, the sympathetic system, speeds things up for action, while the other, the parasympathetic system, calms them down for rest and digestion. The balance between them helps decide how much energy your body uses at rest and how satisfied you feel after eating.

Clinical Definition

The autonomic nervous system modulates energy expenditure through sympathetic innervation of brown and beige adipose tissue and of the heart, liver and skeletal muscle, and modulates satiety through parasympathetic vagal signalling from the gut to the hypothalamus. Obesity is associated with reduced heart rate variability, increased sympathetic and reduced parasympathetic tone and impaired baroreflex sensitivity, a pattern that contributes to hypertension and insulin resistance and that improves with weight loss and regular exercise. Heart rate variability is therefore used as a non-invasive marker of autonomic balance in metabolic research.

Why It Matters

Autonomic tone connects the two things patients find hardest to change, stress and physical activity, because both directly retune this system. NuLifeCare Singapore measures activity, sleep and stress alongside weight so that treatment addresses regulation and not only intake.