Can Stress Cause Diarrhoea?

Understanding the Gut-Brain Connection

- Dr. Chalapathy Vydehi Super Specialty Hospital (VSH), Vittal Mallya Road, Ashok Nagar, Bengaluru 500001 Ph: 080-22277979/9148972991 Vydehi Institute of Medical Sciences & RC, White field, Bengaluru - 560066 ph: [phone] Extn:1147/1366 www.vims.ac.in

Have you ever felt an upset stomach right before an exam, interview, or stressful situation? You're not alone. Many people experience digestive issues during times of emotional distress, including a common but often overlooked symptom— diarrhoea. But how exactly does stress affect our gut? Let's explore the fascinating link between the brain and the digestive system, known as the gut-brain connection.

The Gut-Brain Axis: A Two-Way Communication

The gut and brain are connected through a complex network of nerves, hormones, and biochemical signals. This connection is known as the gut-brain axis. The brain sends signals to the gut via the vagus nerve, and in return, the gut communicates back using neurotransmitters and hormones.

When you're stressed, anxious, or emotionally overwhelmed, your brain sends distress signals to your gut. This can trigger various digestive symptoms such as stomach cramps, bloating, and most notably—diarrhoea.

How Stress Triggers Diarrhoea

Stress affects the body in several ways that can lead to diarrhoea: