To allow new memories to finish forming, you should avoid studying new material for how many hours?

• A. 12 hours
• B. 24 hours
• C. 48 hours
• D. 6 hours

Answer: (B)

Memories go through a consolidation process after you learn them, and a big part of that happens while you sleep. During this time the brain stabilizes the new information so it becomes more durable. If you start learning new material too soon, those fresh memories can be disrupted by the new encoding, making recall weaker later. Waiting about 24 hours gives the memory enough time to solidify without interference from additional studying. Shorter intervals (like 6 or 12 hours) may not let consolidation finish, while waiting much longer (such as 48 hours) isn’t necessary for most tasks. So giving yourself a full day before adding new material helps the memory finish forming and stick better.