alertness level

The study, published in PLoS One journal, involved 50 participants, using a specially designed online survey that enables them to remotely contribute to the study from the comfort of their own home.(Unsplash)

Melodic alarms can improve alertness levels

Sydney | By Indo Asian News Service
UPDATED ON FEB 03, 2020 03:13 PM IST
Each person logged what type of sound they used to wake up, and then rated their grogginess and alertness levels against standardised sleep inertia criteria.
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