Delhi Adults' Evening Phone Use Delays Sleep by Hours, Research Finds

Delhi residents spending more than two hours on screens after 9 p.m. face a documented 30-minute delay in falling asleep, according to tracking data collected at the All India Institute of Medical Sciences.

Smartphone ownership in the capital has climbed steadily since 2023, pushing many office workers and students into prolonged evening use just as winter running routes along Lodhi Road fill with early risers seeking recovery time.

Local patterns in key neighbourhoods

Morning groups at Lodi Garden report stronger daytime energy when they limit phones the night before, while yoga sessions at Nehru Park draw participants who track their own sleep logs to counter late scrolling. AIIMS staff have linked these habits to broader wellness programs that include clean-eating workshops near Khan Market, where residents swap device time for earlier wind-down routines.

Researchers note that blue-light wavelengths from typical handsets suppress melatonin production within 90 minutes of exposure, a process measured in controlled trials completed last year.

Evidence from recent studies and next steps

A March 2026 Delhi Health Department survey of 1,200 adults aged 25 to 45 found 72 percent used devices in bed and averaged 5.8 hours of sleep, down from 7.1 hours reported in 2022 city data. The same report recorded a 40 percent rise in self-reported fatigue among those near Connaught Place who kept screens active past midnight.

Residents can start with device curfews at 9:30 p.m., activate night-shift modes on phones, and keep chargers outside bedrooms to shorten exposure. Those already active in Lodi Garden runs or Nehru Park classes see faster adjustments when they pair reduced screen time with consistent bedtimes, though individual results vary and local doctors at AIIMS advise personalised checks.