A closer look at the brain’s key regions and how they work together to manage everything from emotions to balance

Ever walked into a room and completely forgotten why you went there? Or suddenly remembered the lyrics of a song you haven’t heard in years? Perhaps you’ve instinctively pulled your hand away from a hot cup of tea before you even realised it was burning.

Behind all these everyday moments, the forgetful, the funny and the fast, is the most sophisticated control centre you carry around all the time: your brain.

Roughly the size of two clenched fists and weighing about 1.2 to 1.4 kilograms, the human brain may not look particularly dramatic, but it is easily one of the most complex organs known to science. Packed with billions of neurons constantly firing electrical signals, it quietly manages everything from breathing and blinking to memories, emotions, movement and decision-making.

Think of it less like a single organ and more like a highly efficient command centre, where different departments handle specific tasks, some making decisions, others storing memories, while a few silently ensure the body keeps running smoothly.