Attention spans have significantly decreased over the past 20 years. In 2003, the average attention span on a screen was about 2.5 minutes. By 2012, it dropped to 75 seconds, and from 2016 to 2020, it averaged just 47 seconds.
The decline in attention spans is attributed to increased multitasking, the rise of smartphones, social media, and sophisticated algorithms that target notifications to users' interests. Additionally, the social nature of humans makes it difficult to resist responding to messages, further fragmenting attention.
Rapid task-switching does not necessarily reduce productivity but increases stress levels. Studies show that faster switching correlates with higher stress, as measured by heart rate variability and blood pressure. It also leads to more errors and mental fatigue.
Executive function, often referred to as the 'CEO of the brain,' handles decision-making and filters out peripheral information. When the brain is fatigued from constant task-switching and stress, executive function weakens, making it harder to filter distractions and maintain focus.
Yes, the ability to concentrate can be restored by removing distractions, such as screens, and developing better habits. Taking breaks, spending time in nature, and engaging in rote activities like knitting or peeling potatoes can help replenish cognitive resources and improve focus.
Gloria Mark recommends becoming aware of automatic behaviors, such as picking up a phone, and questioning whether the action is necessary. She also suggests practicing forethought by visualizing future goals, identifying peak concentration times, and setting daily goals with visible reminders like post-it notes.
Personality traits like conscientiousness and neuroticism significantly influence attention spans. Conscientious individuals tend to check emails frequently to stay on top of tasks, while those high in neuroticism often replay conversations in their minds, leading to shorter attention spans and difficulty focusing.
The Oxford English Dictionary announced its word of the year at the end of 2024: brain rot. The term relates to the supposedly negative effects of consuming social media content, but it struck a chord more widely with many of us who feel we just don’t have the mental capacity we once did. Gloria Mark, a professor of informatics at the University of California, Irvine, has been studying our waning attention spans for 20 years. She tells Madeleine Finlay why she believes our powers of concentration are not beyond rescue, and reveals her top tips for finding focus. Help support our independent journalism at theguardian.com/sciencepod)