A large global study links more screen time with poorer child development, including in the United States.

Researchers reported significant drops in cognitive scores as children’s use of digital devices rose.

The article says heavy device use in early childhood can disrupt communication pathways in a key growth window.

Concerns listed include weaker language growth, shorter attention, and lower scores on developmental tests.

High device use is also said to interfere with reading comprehension.

Educators cited in the piece report weaker school performance among students who spend many hours on screens.

The article says the pattern shows up across income levels and regions, not in only one group of families.

Pediatricians recommend clear limits, and some schools are tightening device rules in favor of offline play.

Read the full story on the global screen-time study and what it found about child development.