Sensory input plays a bigger role in mental health than people often realise. Your brain is constantly processing information from your environment, including noise, light, movement, temperature, textures and conversations. When that input builds up, your nervous system can become overloaded. This can show up as irritability, difficulty concentrating, feeling anxious or restless, wanting to withdraw, or shutting down. It is not always about what you are thinking or feeling in the moment. Sometim