In questa recente pubblicazione indiana si evidenzia come
l'utilizzo del telefono cellulare ( da parte di una popolazione di
studenti) per un tempo superiore alle 2 ore giornaliere causi disturbi del
sonno e conseguentemente problemi cognitivi e dell'apprendimento.
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Abstract
Exposure of humans to radio
frequency electromagnetic field (EMF) both during receiving and transmitting
the signals has amplified public and scientific debate about possible adverse
effects on human health. The study was designed with the objective of assessing
the extent of mobile phone use amongst medical students and finding correlation
if any between the hours of usage of mobile to sleep pattern and quality.
hundred medical students grouped as cases (n = 57) (> 2 hours/day of mobile
usage) and control (n = 43) (≤ 2 hours/day of mobile usage) were examined for
their sleep quality & pattern by Pittsburg sleep Quality Index (PSQI).
Differences between groups were examined with the Mann Whitney "U"
test for proportions (Quantitative values) and with Student't' test for
continuous variables. The association of variables was analyzed by Spearman
Rank's correlation. Probability was set at < 0.05 as significant. Sleep
disturbance, latency and day dysfunction was more in cases especially females.
A significant association of hours of usage and sleep indices were observed in
both genders (males r = 0.25; p = 0.04, females r = 0.31; p = 0.009). Evening
usage of mobile phone in cases showed a statistically significant negative
association (-0.606; p = 0.042) with Sleep quality (higher PSQI means sleep
deprivation). Students using mobile for > 2 hours/day may cause sleep
deprivation and day sleepiness affecting cognitive and learning abilities of
medical students.
