The Placebo and Nocebe Effect

Have you heard of placebo and nocebe effects before? As a medical practitioner in training, I was taught that some treatment procedures were meant to deliver placebo or nocebe effects only to the brain. For drugs and treatment in this category, there is usually no active chemical or bioelectrical ingredients but because it was expected to be present, your brain can trigger real and measurable physiological changes when administered.

Here’s a practical illustration of how these two effects work:

The Placebo Effect (The Positive): You are given a sugar pill believing it is a painkiller. When ingested, your brain tends to release actual endorphins (also known as natural painkillers), and that can physically decrease the pain you are experiencing. This is also how vaccines works and are developed.

The Nocebo Effect (The Negative): You are given a harmless sugar pill but are told it causes nausea. Your brain can trigger stress responses that make you feel genuinely sick.

Placebo and Nocebe effects are proofs that the brain can directly regulate pain, stress hormones and cardiovascular responses purely based on perception.

I hope you have learnt something today!