It is hyperactive. The colon contracts with excessive force and frequency, leading to a sudden, urgent need to defecate. This is often referred to as a “hyperactive gastrocolic reflex.” It is more common in people with irritable bowel syndrome (IBS), but it can occur in healthy individuals as well. The speed at which this happens varies. For some, the urge comes within minutes of eating. For others, it might be an hour later. The key is the connection between the stomach and the colon.
The Role of the Vagus NerveBiological Sciences
The gastrocolic reflex is mediated by the vagus nerve,
Comments