We may not know it, but a memory is a series of connections between our neurons called synapses that ultimately build networks in our brain. We build these networks through repetition and learning, and the more you use or review the information, the stronger the links and synapses become and the more likely you will remember it. Chunking is a way to link related new and old ideas together in those networks. By doing so, chunking will make us more likely to recall the information, particularly as we take those crucial exams.