Don't want to forget what you learned today? Sleep on it. Naps, ideally 90 minutes long, help you register the happenings and how-to's learned during the day. Then when you catch your z's at night, your brain creates memories of the day's events. But overload your brain with long-term memories and you may struggle to remember recent events. Scientists once thought that memory improved when new neurons were created in the hippocampus, the region of the brain that forms memories. Instead, a better memory may be possible in brains with less new neurons developing in the hippocampus. Recent studies also found that migraines, music, habits, zinc and thinking like a child each improved individual memory.
