Overstimulation happens when your brain receives more sights, sounds, activities, or information than it can comfortably process at once. Imagine trying to listen to three people talking at the same time while music blares and bright lights flash: your brain can't focus on everything, and you might feel overwhelmed, cranky, or exhausted.

Young children often experience overstimulation at birthday parties or crowded places: too much excitement, noise, and activity can leave them tired and fussy. But overstimulation affects people of all ages. After spending hours at a noisy arcade or carnival, you might feel drained even though you were just “having fun.” Students sometimes feel overstimulated after a busy day of classes, activities, and social time.

In our modern world, overstimulation is common. Video games, social media, and constant notifications can overwhelm your attention. When you're overstimulated, your brain needs a break: quiet time, a walk outside, or simply doing one calm thing instead of three exciting things at once.

Most people need regular periods of calm to balance stimulating experiences and keep their minds working well.