Ever get that creepy feeling like someone’s staring at you, even when you can’t see them? It turns out, there’s some science behind it! Our brains are really good at picking up tiny clues from our surroundings, like a shift in shadows or small movements, even if we’re not aware of it. This ability comes from our ancestors, who needed to stay alert for predators or other dangers. Our brains also have a special area just for recognizing faces, which might explain why we can sense when eyes are on us. Sometimes, though, it’s just our imagination or a “false alarm” from our brain’s instinct to keep us safe. So, that weird feeling is like a built-in survival tool, even if it doesn’t always mean someone’s actually watching! Animation is created by Bright Side.