Why multitasking exhausts your brain and makes you slower

Constant multitasking does not actually make you more efficient, but instead forces the brain to rapidly switch attention back and forth between different tasks. Fortis Hospital Noida senior consultant neurologist Dr Neha Pandita explains that the human brain does not handle multiple things simultaneously, but rather focuses on one item at a time. This constant shifting creates a mental toll known as a switching cost, where the brain must readjust, recall where it left off, and rebuild its train of thought each time it returns to the original task.

The Cost of Switching

Moving constantly between emails, text messages, meetings, and phone screens leads to slower work, more mistakes, and deep mental exhaustion. People often mistake this exhaustion and the resulting everyday forgetfulness for a weakening memory, with patients frequently telling doctors they forget why they walked into a room or what they just read. However, Dr Pandita notes that persistent memory issues should always receive a proper medical evaluation rather than being automatically blamed on routine distractions.

Smart Managing

A complete ban on multitasking is neither realistic nor necessary for daily life. Instead, the expert advises separating activities that compete for the same mental resources from those that can comfortably coexist in the background. For example, writing a report during a meeting demands competing attention, whereas listening to music while folding clothes does not.

Context

Modern daily life often involves a barrage of digital notifications from phones, computers, and messaging apps that constantly fragment human attention. Experts across neurology and psychology frequently study how these modern habits affect productivity, stress levels, and cognitive endurance in the long run.