Researchers discovered that nearly 45% of people sing earworms in perfect pitch, suggesting a hidden "perfect pitch" ability in the general population. Even without formal musical training, participants accurately recalled the pitch of familiar songs, challenging common perceptions about musical abilities. This finding highlights the brain's remarkable capacity to store precise musical memories and suggests that many people may have untapped musical potential.

New research shows sleep can be detected by brain activity patterns just milliseconds long. This study found small brain regions can momentarily "flicker" awake or asleep, challenging traditional views on sleep and wake states.