Parents, take note! A new study has found that night-time texting habits of teenagers may be to blame for their falling grades and increased yawning in school. Researchers from Rutgers University in US distributed survey to three New Jersey high schools and evaluated the 1,537 responses contrasting grades, sexes, messaging duration and whether the texting occurred before or after lights out.


They found that students who turned off their devices or who messaged for less than 30 minutes after lights out performed significantly better in school than those who messaged for more than 30 minutes after lights out.


Students who texted longer in the dark also slept fewer hours and were sleepier during the day than those who stopped messaging when they went to bed. Texting before lights out did not affect academic performance, the study found.