Why Do We Forget Things?

Memory is not a passive recording; it is an active, reconstructive process. The brain stores memories by strengthening synaptic connections between neurons, but without repeated recall or emotional reinforcement, these connections gradually weaken — a process called decay. Additionally, new memories can interfere with old ones (retroactive interference), and old memories can block retrieval of new ones (proactive interference). Some researchers view forgetting as adaptive: by clearing less relevant information, the brain keeps memory systems efficient and helps us generalise rather than being overwhelmed by every detail.