Neurology experts warn task-switching harms brain focus

Neurological research suggests that what many people call multitasking is actually task-switching, a process that can negatively impact brain function. Dr. Andrew Budson, a neurology lecturer at Harvard Medical School, explains that while the brain can run many processes in parallel, it has limited bandwidth for tasks requiring conscious attention.

True multitasking involves pairing an automatic activity, such as walking on a treadmill, with a conscious one. In contrast, task-switching occurs when an individual attempts two cognitively demanding tasks simultaneously, such as texting during a lecture. This constant switching can undermine focus, concentration, learning, and working memory by causing cognitive overload.