The brain of an insomniac is constantly active throughout the day and night, making it difficult for them to relax and fall asleep. Studies have shown that insomniacs have higher brainwave activity at night compared to normal sleepers. Their brains continue processing information even when trying to sleep. This is because memories and experiences from the day are replayed at night, keeping the mind stimulated. Insomnia should be seen as a 24-hour condition rather than just a nighttime problem, as the insomniac's brain has difficulty transitioning to a calm, relaxed state needed for quality sleep. The lack of sleep also impacts memory consolidation and focus during the day.