A headache is not from your brain itself hurting, but it might mean some of the muscles, membranes and tissues surrounding the brain or its blood supply system could be hurting. Curious Kids is a series for children. If you have a question you’d like an expert to answer, send it to email@example.com You might also like the podcast Imagine This, a co-production between ABC KIDS listen and The Conversation, based on Curious Kids.
Pain is difficult to measure. Unlike using a thermometer to measure body temperature, a blood test to measure blood glucose, or a magnetic resonance imaging (MRI) scan to detect a tumour, there are no instruments or tests that objectively measure pain.
To understand why, one needs to understand what pain is.
Pain is a perception, and like other perceptions (such as happiness, sadness, anxiousness), it reflects the sum of a lot of external and internal information interpreted by our brains.
For example, we…