In a recent discussion before the US Senate, Dr. Jared Cooney Horvath highlighted concerning trends regarding cognitive abilities in Gen Z, those born between the late 1990s and early 2010s. For the first time in over a century, this generation appears to lag behind their parents in key brain skills, as evidenced by standardized tests from the OECD's Programme for International Student Assessment (PISA) and national exams. Notably, scores in literacy and numeracy have declined in several developed nations, particularly since the mid-2000s.

Dr. Horvath attributes this decline not to biology but to environmental factors, including the pervasive influence of smartphones and digital media. The average attention span has reportedly decreased from around 12 seconds to about 8 seconds among heavy digital users, which can hinder complex cognitive tasks. The constant exposure to quick, engaging content may diminish the motivation for deeper, sustained thinking.

While some regions show declines, others, especially in emerging economies like India, continue to see academic progress among Gen Z students, suggesting that the issue is not universal. This highlights the importance of understanding the diverse educational landscapes and habits influencing cognitive development across different cultures.